./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3 --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 03435fc3571c59ac845d6cb48b144af30bf56509 ......................................................................................................................................................................................................................................................................................................................................................................................... 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-5709675 [2021-10-15 19:06:07,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:06:07,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:06:07,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:06:07,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:06:07,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:06:07,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:06:07,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:06:07,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:06:07,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:06:07,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:06:07,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:06:07,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:06:07,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:06:07,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:06:07,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:06:07,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:06:07,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:06:07,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:06:07,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:06:07,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:06:07,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:06:07,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:06:07,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:06:07,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:06:07,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:06:07,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:06:07,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:06:07,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:06:07,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:06:07,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:06:07,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:06:07,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:06:07,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:06:07,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:06:07,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:06:07,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:06:07,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:06:07,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:06:07,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:06:07,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:06:07,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:06:07,971 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:06:07,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:06:07,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:06:07,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:06:07,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:06:07,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:06:07,978 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:06:07,978 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:06:07,978 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:06:07,979 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:06:07,980 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:06:07,980 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:06:07,980 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:06:07,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:06:07,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:06:07,981 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:06:07,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:06:07,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:06:07,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:06:07,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:06:07,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:06:07,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:06:07,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:06:07,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:06:07,983 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:06:07,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:06:07,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:06:07,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:06:07,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:06:07,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:06:07,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:06:07,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:06:07,989 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:06:07,989 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_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03435fc3571c59ac845d6cb48b144af30bf56509 [2021-10-15 19:06:08,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:06:08,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:06:08,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:06:08,264 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:06:08,266 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:06:08,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2021-10-15 19:06:08,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/data/7b7e47d12/b55cdacc22df4247a62de184046970d3/FLAG92fe35d07 [2021-10-15 19:06:08,869 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:06:08,869 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2021-10-15 19:06:08,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/data/7b7e47d12/b55cdacc22df4247a62de184046970d3/FLAG92fe35d07 [2021-10-15 19:06:09,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/data/7b7e47d12/b55cdacc22df4247a62de184046970d3 [2021-10-15 19:06:09,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:06:09,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:06:09,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:06:09,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:06:09,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:06:09,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22586615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09, skipping insertion in model container [2021-10-15 19:06:09,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:06:09,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:06:09,440 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_d4ddbf18-1070-4464-ab45-c9596de20523/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c[1605,1618] [2021-10-15 19:06:09,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:06:09,569 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:06:09,599 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_d4ddbf18-1070-4464-ab45-c9596de20523/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c[1605,1618] [2021-10-15 19:06:09,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:06:09,722 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:06:09,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09 WrapperNode [2021-10-15 19:06:09,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:06:09,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:06:09,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:06:09,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:06:09,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:06:09,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:06:09,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:06:09,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:06:09,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:06:09,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:06:09,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:06:09,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:06:09,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:06:09,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:06:09,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:06:09,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:06:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:06:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:06:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:06:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:06:10,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:06:10,810 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-15 19:06:10,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:10 BoogieIcfgContainer [2021-10-15 19:06:10,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:06:10,814 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:06:10,815 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:06:10,820 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:06:10,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:06:10,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:06:09" (1/3) ... [2021-10-15 19:06:10,827 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4705644d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:06:10, skipping insertion in model container [2021-10-15 19:06:10,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:06:10,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (2/3) ... [2021-10-15 19:06:10,828 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4705644d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:06:10, skipping insertion in model container [2021-10-15 19:06:10,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:06:10,828 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:10" (3/3) ... [2021-10-15 19:06:10,830 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2021-10-15 19:06:10,914 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:06:10,915 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:06:10,915 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:06:10,915 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:06:10,915 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:06:10,915 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:06:10,915 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:06:10,916 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:06:10,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 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) [2021-10-15 19:06:10,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-10-15 19:06:10,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:06:10,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:06:10,985 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:06:10,985 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:06:10,986 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:06:10,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 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) [2021-10-15 19:06:11,006 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-10-15 19:06:11,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:06:11,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:06:11,007 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:06:11,007 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:06:11,018 INFO L791 eck$LassoCheckResult]: Stem: 96#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 32#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 30#L546true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 106#L554true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 55#L935true assume 0 != main_~tmp~8; 94#L912true havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 17#L835-1true [2021-10-15 19:06:11,018 INFO L793 eck$LassoCheckResult]: Loop: 17#L835-1true assume !false; 42#L573true assume test_~splverifierCounter~0 < 4; 40#L574true test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 102#L582true assume !(0 != test_~tmp~3); 28#L582-1true test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 14#L592true assume !(0 != test_~tmp___0~0); 46#L592-1true test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 10#L602true assume 0 != test_~tmp___2~0; 79#L608-1true assume !(0 != ~pumpRunning~0); 34#L641true assume !(0 != ~systemActive~0); 104#L648true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 16#L507true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 99#L835true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 17#L835-1true [2021-10-15 19:06:11,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:11,025 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-15 19:06:11,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:11,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210007977] [2021-10-15 19:06:11,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:11,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:11,322 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:06:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:11,529 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:06:11,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:11,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709749, now seen corresponding path program 1 times [2021-10-15 19:06:11,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:11,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388468569] [2021-10-15 19:06:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:11,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:11,548 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:06:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:11,567 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:06:11,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:11,579 INFO L82 PathProgramCache]: Analyzing trace with hash 42569189, now seen corresponding path program 1 times [2021-10-15 19:06:11,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:11,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668214468] [2021-10-15 19:06:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:11,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:06:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:06:11,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:06:11,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668214468] [2021-10-15 19:06:11,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668214468] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:06:11,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:06:11,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:06:11,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363382812] [2021-10-15 19:06:11,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:06:11,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:06:11,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:06:11,912 INFO L87 Difference]: Start difference. First operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:12,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:06:12,129 INFO L93 Difference]: Finished difference Result 252 states and 354 transitions. [2021-10-15 19:06:12,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:06:12,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 354 transitions. [2021-10-15 19:06:12,137 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 161 [2021-10-15 19:06:12,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 231 states and 333 transitions. [2021-10-15 19:06:12,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 231 [2021-10-15 19:06:12,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 231 [2021-10-15 19:06:12,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 231 states and 333 transitions. [2021-10-15 19:06:12,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:06:12,149 INFO L681 BuchiCegarLoop]: Abstraction has 231 states and 333 transitions. [2021-10-15 19:06:12,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states and 333 transitions. [2021-10-15 19:06:12,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 138. [2021-10-15 19:06:12,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 1.434782608695652) internal successors, (198), 137 states have internal predecessors, (198), 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) [2021-10-15 19:06:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 198 transitions. [2021-10-15 19:06:12,186 INFO L704 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2021-10-15 19:06:12,186 INFO L587 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2021-10-15 19:06:12,186 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:06:12,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 198 transitions. [2021-10-15 19:06:12,188 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2021-10-15 19:06:12,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:06:12,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:06:12,189 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:06:12,189 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:06:12,189 INFO L791 eck$LassoCheckResult]: Stem: 471#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 422#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 419#L546 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 420#L554 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 448#L935 assume 0 != main_~tmp~8; 449#L912 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 400#L835-1 [2021-10-15 19:06:12,189 INFO L793 eck$LassoCheckResult]: Loop: 400#L835-1 assume !false; 401#L573 assume test_~splverifierCounter~0 < 4; 435#L574 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 436#L582 assume !(0 != test_~tmp~3); 416#L582-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 394#L592 assume !(0 != test_~tmp___0~0); 395#L592-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 384#L602 assume 0 != test_~tmp___2~0; 385#L608-1 assume !(0 != ~pumpRunning~0); 425#L641 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 426#L699 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret57, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 429#L673-1 assume !(0 != ~pumpRunning~0); 383#L648 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 398#L507 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 399#L835 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 400#L835-1 [2021-10-15 19:06:12,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:12,190 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-15 19:06:12,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:12,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983192990] [2021-10-15 19:06:12,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:12,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:12,281 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:06:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:12,345 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:06:12,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:12,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294333, now seen corresponding path program 1 times [2021-10-15 19:06:12,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:12,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097872068] [2021-10-15 19:06:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:12,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:12,352 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:06:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:12,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:06:12,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:12,360 INFO L82 PathProgramCache]: Analyzing trace with hash 104912087, now seen corresponding path program 1 times [2021-10-15 19:06:12,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:12,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084508782] [2021-10-15 19:06:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:12,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:12,408 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:06:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:12,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:07:07,173 WARN L207 SmtUtils]: Spent 54.60 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-15 19:08:02,735 WARN L207 SmtUtils]: Spent 26.72 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-15 19:08:02,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:08:02 BoogieIcfgContainer [2021-10-15 19:08:02,860 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:08:02,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:08:02,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:08:02,860 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:08:02,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:10" (3/4) ... [2021-10-15 19:08:02,867 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 19:08:02,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:08:02,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:08:02,949 INFO L168 Benchmark]: Toolchain (without parser) took 113753.85 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 87.1 MB in the beginning and 98.4 MB in the end (delta: -11.3 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:08:02,950 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory is still 36.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:08:02,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.97 ms. Allocated memory is still 121.6 MB. Free memory was 86.9 MB in the beginning and 89.2 MB in the end (delta: -2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:08:02,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.77 ms. Allocated memory is still 121.6 MB. Free memory was 88.6 MB in the beginning and 85.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:08:02,952 INFO L168 Benchmark]: Boogie Preprocessor took 42.23 ms. Allocated memory is still 121.6 MB. Free memory was 85.7 MB in the beginning and 82.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:08:02,952 INFO L168 Benchmark]: RCFGBuilder took 954.15 ms. Allocated memory is still 121.6 MB. Free memory was 82.9 MB in the beginning and 41.8 MB in the end (delta: 41.1 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:08:02,953 INFO L168 Benchmark]: BuchiAutomizer took 112045.38 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 41.8 MB in the beginning and 100.5 MB in the end (delta: -58.7 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:08:02,954 INFO L168 Benchmark]: Witness Printer took 87.17 ms. Allocated memory is still 172.0 MB. Free memory was 100.5 MB in the beginning and 98.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:08:02,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory is still 36.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 514.97 ms. Allocated memory is still 121.6 MB. Free memory was 86.9 MB in the beginning and 89.2 MB in the end (delta: -2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.77 ms. Allocated memory is still 121.6 MB. Free memory was 88.6 MB in the beginning and 85.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.23 ms. Allocated memory is still 121.6 MB. Free memory was 85.7 MB in the beginning and 82.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 954.15 ms. Allocated memory is still 121.6 MB. Free memory was 82.9 MB in the beginning and 41.8 MB in the end (delta: 41.1 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 112045.38 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 41.8 MB in the beginning and 100.5 MB in the end (delta: -58.7 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. * Witness Printer took 87.17 ms. Allocated memory is still 172.0 MB. Free memory was 100.5 MB in the beginning and 98.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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 138 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 111.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 111.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 23.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 93 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 138 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 143 SDtfs, 550 SDslu, 659 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 129.7ms 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: 572]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28334} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=28334, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d693291=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@561d7d54=0, NULL=28356, NULL=0, NULL=0, NULL=28335, NULL=28352, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d39e512=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@277f07a6=0, methaneLevelCritical=0, NULL=28338, tmp=0, NULL=0, NULL=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c5734e0=0, tmp___1=0, NULL=28358, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a4d2071=0, NULL=0, NULL=0, NULL=28346, NULL=28345, NULL=28353, cleanupTimeShifts=4, NULL=28344, NULL=28343, NULL=28350, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=28336, \result=1, NULL=0, NULL=0, NULL=0, NULL=28357, tmp___0=0, retValue_acc=0, NULL=28354, \result=1, head=0, pumpRunning=0, NULL=28359, \result=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=28341, NULL=28362, NULL=28337, retValue_acc=1, NULL=0, NULL=28360, NULL=0, NULL=28348, tmp=1, tmp___2=68, NULL=0, retValue_acc=1, NULL=28351, NULL=28349, splverifierCounter=0, NULL=0, NULL=28339, NULL=28347, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@283b8cf2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73232681=68, head=0, NULL=0, NULL=0, tmp=0, NULL=28342, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d40cbbb=0, NULL=28355, NULL=28361, NULL=28340} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L633] int pumpRunning = 0; [L634] int systemActive = 1; [L853] int cleanupTimeShifts = 4; [L926] int retValue_acc ; [L927] int tmp ; [L550] int retValue_acc ; [L553] retValue_acc = 1 [L554] return (retValue_acc); [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L563] int splverifierCounter ; [L564] int tmp ; [L565] int tmp___0 ; [L566] int tmp___1 ; [L567] int tmp___2 ; [L570] splverifierCounter = 0 Loop: [L572] COND TRUE 1 [L574] COND TRUE splverifierCounter < 4 [L580] tmp = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp)) [L590] tmp___0 = __VERIFIER_nondet_int() [L592] COND FALSE !(\read(tmp___0)) [L600] tmp___2 = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp___2) [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L696] int tmp ; [L699] COND FALSE !(\read(pumpRunning)) [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L828] int tmp ; [L829] int tmp___0 ; [L503] int retValue_acc ; [L506] retValue_acc = waterLevel [L507] return (retValue_acc); [L833] tmp = getWaterLevel() [L835] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 19:08:03,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ddbf18-1070-4464-ab45-c9596de20523/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...