./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product17.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_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/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_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/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_ff5bdd2d-4974-42e0-abd4-972e98d86e87/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 abdaf7d039f72f53757ac3024ed39e407d16dbdb ....................................................................................................................................................................................................................................................................................................................................................................................... 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 [2021-10-13 00:15:43,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:15:43,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:15:43,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:15:43,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:15:43,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:15:43,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:15:43,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:15:43,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:15:43,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:15:43,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:15:43,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:15:43,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:15:43,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:15:43,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:15:43,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:15:43,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:15:43,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:15:43,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:15:43,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:15:43,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:15:43,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:15:43,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:15:43,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:15:44,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:15:44,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:15:44,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:15:44,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:15:44,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:15:44,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:15:44,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:15:44,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:15:44,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:15:44,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:15:44,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:15:44,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:15:44,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:15:44,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:15:44,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:15:44,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:15:44,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:15:44,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:15:44,068 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:15:44,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:15:44,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:15:44,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:15:44,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:15:44,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:15:44,070 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:15:44,070 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:15:44,071 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:15:44,076 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:15:44,077 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:15:44,077 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:15:44,077 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:15:44,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:15:44,078 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:15:44,078 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:15:44,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:15:44,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:15:44,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:15:44,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:15:44,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:15:44,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:15:44,079 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:15:44,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:15:44,080 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:15:44,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:15:44,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:15:44,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:15:44,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:15:44,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:15:44,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:15:44,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:15:44,084 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:15:44,084 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_ff5bdd2d-4974-42e0-abd4-972e98d86e87/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abdaf7d039f72f53757ac3024ed39e407d16dbdb [2021-10-13 00:15:44,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:15:44,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:15:44,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:15:44,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:15:44,463 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:15:44,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec1_product17.cil.c [2021-10-13 00:15:44,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/data/e2810f6da/1d4bbd741cb742dab56cc19509187bbb/FLAG6df865c93 [2021-10-13 00:15:45,151 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:15:45,155 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/sv-benchmarks/c/product-lines/minepump_spec1_product17.cil.c [2021-10-13 00:15:45,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/data/e2810f6da/1d4bbd741cb742dab56cc19509187bbb/FLAG6df865c93 [2021-10-13 00:15:45,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/data/e2810f6da/1d4bbd741cb742dab56cc19509187bbb [2021-10-13 00:15:45,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:15:45,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:15:45,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:15:45,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:15:45,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:15:45,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:45,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ececc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45, skipping insertion in model container [2021-10-13 00:15:45,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:45,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:15:45,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:15:45,771 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_ff5bdd2d-4974-42e0-abd4-972e98d86e87/sv-benchmarks/c/product-lines/minepump_spec1_product17.cil.c[12699,12712] [2021-10-13 00:15:45,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:45,810 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:15:45,862 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_ff5bdd2d-4974-42e0-abd4-972e98d86e87/sv-benchmarks/c/product-lines/minepump_spec1_product17.cil.c[12699,12712] [2021-10-13 00:15:45,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:45,910 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:15:45,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45 WrapperNode [2021-10-13 00:15:45,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:15:45,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:15:45,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:15:45,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:15:45,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:45,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:15:46,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:15:46,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:15:46,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:15:46,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:15:46,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:15:46,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:15:46,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:15:46,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (1/1) ... [2021-10-13 00:15:46,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:46,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:46,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:46,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:15:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:15:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:15:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:15:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:15:47,234 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:15:47,235 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-13 00:15:47,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:47 BoogieIcfgContainer [2021-10-13 00:15:47,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:15:47,239 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:15:47,240 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:15:47,245 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:15:47,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:47,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:15:45" (1/3) ... [2021-10-13 00:15:47,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@323ec8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:15:47, skipping insertion in model container [2021-10-13 00:15:47,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:47,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:45" (2/3) ... [2021-10-13 00:15:47,249 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@323ec8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:15:47, skipping insertion in model container [2021-10-13 00:15:47,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:47,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:47" (3/3) ... [2021-10-13 00:15:47,250 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product17.cil.c [2021-10-13 00:15:47,319 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:15:47,320 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:15:47,320 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:15:47,320 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:15:47,320 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:15:47,321 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:15:47,321 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:15:47,321 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:15:47,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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) [2021-10-13 00:15:47,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 00:15:47,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:47,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:47,392 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:15:47,393 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:47,393 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:15:47,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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) [2021-10-13 00:15:47,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 00:15:47,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:47,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:47,412 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:15:47,413 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:47,426 INFO L791 eck$LassoCheckResult]: Stem: 55#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 42#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 26#L884true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 51#L892true main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 27#L527true assume 0 != main_~tmp~4; 52#L500true havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 67#L53-1true [2021-10-13 00:15:47,427 INFO L793 eck$LassoCheckResult]: Loop: 67#L53-1true assume !false; 34#L808true assume test_~splverifierCounter~0 < 4; 58#L809true test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 62#L817true assume !(0 != test_~tmp~7); 7#L817-1true test_~tmp___0~2 := test_#t~nondet75;havoc test_#t~nondet75; 73#L827true assume !(0 != test_~tmp___0~2); 57#L827-1true test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 49#L837true assume 0 != test_~tmp___2~0; 35#L843-2true assume !(0 != ~pumpRunning~0); 14#L562true assume !(0 != ~systemActive~0); 37#L569true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 23#L751true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 36#L53true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 67#L53-1true [2021-10-13 00:15:47,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:47,434 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:15:47,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:47,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407748465] [2021-10-13 00:15:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:47,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:47,743 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:48,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:48,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:48,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1681683774, now seen corresponding path program 1 times [2021-10-13 00:15:48,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:48,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838527495] [2021-10-13 00:15:48,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:48,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:48,045 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:48,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:48,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:48,073 INFO L82 PathProgramCache]: Analyzing trace with hash 32595164, now seen corresponding path program 1 times [2021-10-13 00:15:48,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:48,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175494171] [2021-10-13 00:15:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:48,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:48,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:48,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175494171] [2021-10-13 00:15:48,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175494171] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:48,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:48,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:15:48,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137919577] [2021-10-13 00:15:48,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:48,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:15:48,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:15:48,422 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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) [2021-10-13 00:15:48,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:48,697 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2021-10-13 00:15:48,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:15:48,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2021-10-13 00:15:48,708 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-13 00:15:48,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2021-10-13 00:15:48,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2021-10-13 00:15:48,716 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2021-10-13 00:15:48,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2021-10-13 00:15:48,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:48,718 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-13 00:15:48,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2021-10-13 00:15:48,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-13 00:15:48,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 states have internal predecessors, (90), 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) [2021-10-13 00:15:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-10-13 00:15:48,757 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-13 00:15:48,758 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-13 00:15:48,759 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:15:48,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2021-10-13 00:15:48,763 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-13 00:15:48,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:48,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:48,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:15:48,775 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:48,776 INFO L791 eck$LassoCheckResult]: Stem: 221#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 215#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 194#L884 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 195#L892 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 197#L527 assume 0 != main_~tmp~4; 198#L500 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 207#L53-1 [2021-10-13 00:15:48,777 INFO L793 eck$LassoCheckResult]: Loop: 207#L53-1 assume !false; 209#L808 assume test_~splverifierCounter~0 < 4; 210#L809 test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 223#L817 assume !(0 != test_~tmp~7); 166#L817-1 test_~tmp___0~2 := test_#t~nondet75;havoc test_#t~nondet75; 167#L827 assume !(0 != test_~tmp___0~2); 222#L827-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 219#L837 assume 0 != test_~tmp___2~0; 170#L843-2 assume !(0 != ~pumpRunning~0); 174#L562 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret45, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 178#L594 assume !(0 != ~pumpRunning~0); 206#L569 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 188#L751 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 189#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 207#L53-1 [2021-10-13 00:15:48,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:48,777 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:15:48,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:48,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650176779] [2021-10-13 00:15:48,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:48,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:48,856 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:48,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:48,963 INFO L82 PathProgramCache]: Analyzing trace with hash -619582373, now seen corresponding path program 1 times [2021-10-13 00:15:48,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:48,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437665668] [2021-10-13 00:15:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:48,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:48,974 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:48,984 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:48,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:48,991 INFO L82 PathProgramCache]: Analyzing trace with hash 983457153, now seen corresponding path program 1 times [2021-10-13 00:15:48,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:48,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779499800] [2021-10-13 00:15:48,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:48,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:49,035 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:49,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:46,206 WARN L207 SmtUtils]: Spent 57.03 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:17:43,894 WARN L207 SmtUtils]: Spent 30.02 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:17:44,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:17:44 BoogieIcfgContainer [2021-10-13 00:17:44,077 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:17:44,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:17:44,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:17:44,078 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:17:44,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:47" (3/4) ... [2021-10-13 00:17:44,082 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:17:44,137 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:17:44,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:17:44,139 INFO L168 Benchmark]: Toolchain (without parser) took 118723.44 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 64.8 MB in the beginning and 83.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:44,139 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 81.9 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:17:44,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.87 ms. Allocated memory is still 104.9 MB. Free memory was 64.6 MB in the beginning and 70.5 MB in the end (delta: -6.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:44,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.28 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 67.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:44,141 INFO L168 Benchmark]: Boogie Preprocessor took 36.07 ms. Allocated memory is still 104.9 MB. Free memory was 67.6 MB in the beginning and 65.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:44,142 INFO L168 Benchmark]: RCFGBuilder took 1189.47 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 65.5 MB in the beginning and 96.7 MB in the end (delta: -31.2 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:44,143 INFO L168 Benchmark]: BuchiAutomizer took 116838.13 ms. Allocated memory is still 127.9 MB. Free memory was 96.7 MB in the beginning and 85.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 73.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:44,143 INFO L168 Benchmark]: Witness Printer took 59.61 ms. Allocated memory is still 127.9 MB. Free memory was 85.1 MB in the beginning and 83.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:44,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 81.9 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 494.87 ms. Allocated memory is still 104.9 MB. Free memory was 64.6 MB in the beginning and 70.5 MB in the end (delta: -6.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.28 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 67.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.07 ms. Allocated memory is still 104.9 MB. Free memory was 67.6 MB in the beginning and 65.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1189.47 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 65.5 MB in the beginning and 96.7 MB in the end (delta: -31.2 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 116838.13 ms. Allocated memory is still 127.9 MB. Free memory was 96.7 MB in the beginning and 85.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 73.0 MB. Max. memory is 16.1 GB. * Witness Printer took 59.61 ms. Allocated memory is still 127.9 MB. Free memory was 85.1 MB in the beginning and 83.0 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 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 116.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 116.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 25.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 367 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.8ms 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: 807]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14491} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59ad50cc=0, NULL=0, NULL=0, NULL=14491, NULL=0, retValue_acc=0, NULL=14493, NULL=0, NULL=0, NULL=14514, NULL=14509, methaneLevelCritical=0, NULL=14518, retValue_acc=1, NULL=0, NULL=0, NULL=14517, tmp=0, NULL=0, tmp___1=0, NULL=14501, NULL=0, NULL=0, tmp___0=0, NULL=14513, NULL=14508, NULL=14505, cleanupTimeShifts=4, NULL=14504, NULL=14499, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2555827c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@705af98b=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c36bfea=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a1241d=0, systemActive=1, waterLevel=1, NULL=14498, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=14515, NULL=0, NULL=0, NULL=0, NULL=14510, NULL=0, NULL=0, NULL=14494, \result=1, head=0, pumpRunning=0, \result=0, NULL=14497, tmp=1, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@529ecabe=60, NULL=14507, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37539610=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c536f1=0, NULL=14520, NULL=0, NULL=0, NULL=14511, tmp___2=60, tmp___0=0, NULL=14502, splverifierCounter=0, NULL=0, \result=0, NULL=14516, NULL=14512, head=0, NULL=0, tmp=0, NULL=14500, NULL=14506, NULL=0, NULL=0, NULL=0, NULL=14503, NULL=14496, NULL=14492, NULL=0, NULL=14519} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L437] int cleanupTimeShifts = 4; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L708] int waterLevel = 1; [L709] int methaneLevelCritical = 0; [L518] int retValue_acc ; [L519] int tmp ; [L888] int retValue_acc ; [L891] retValue_acc = 1 [L892] return (retValue_acc); [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L798] int splverifierCounter ; [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L802] int tmp___2 ; [L805] splverifierCounter = 0 Loop: [L807] COND TRUE 1 [L809] COND TRUE splverifierCounter < 4 [L815] tmp = __VERIFIER_nondet_int() [L817] COND FALSE !(\read(tmp)) [L825] tmp___0 = __VERIFIER_nondet_int() [L827] COND FALSE !(\read(tmp___0)) [L835] tmp___2 = __VERIFIER_nondet_int() [L837] COND TRUE \read(tmp___2) [L562] COND FALSE !(\read(pumpRunning)) [L569] COND TRUE \read(systemActive) [L591] int tmp ; [L594] COND FALSE !(\read(pumpRunning)) [L46] int tmp ; [L47] int tmp___0 ; [L747] int retValue_acc ; [L750] retValue_acc = methaneLevelCritical [L751] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:17:44,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5bdd2d-4974-42e0-abd4-972e98d86e87/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...