./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY --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 6eb031202bc5e91677d057e2e99b15d2f4511feedab41faf47e955f82709dea4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:19:48,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:19:48,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:19:48,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:19:48,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:19:48,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:19:48,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:19:48,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:19:48,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:19:48,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:19:48,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:19:48,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:19:48,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:19:48,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:19:48,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:19:48,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:19:48,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:19:48,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:19:48,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:19:48,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:19:48,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:19:49,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:19:49,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:19:49,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:19:49,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:19:49,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:19:49,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:19:49,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:19:49,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:19:49,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:19:49,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:19:49,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:19:49,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:19:49,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:19:49,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:19:49,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:19:49,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:19:49,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:19:49,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:19:49,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:19:49,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:19:49,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 08:19:49,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:19:49,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:19:49,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:19:49,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:19:49,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:19:49,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:19:49,123 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:19:49,124 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:19:49,124 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:19:49,124 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:19:49,126 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:19:49,127 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:19:49,127 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:19:49,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:19:49,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:19:49,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:19:49,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:19:49,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:19:49,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:19:49,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:19:49,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:19:49,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:19:49,131 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:19:49,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:19:49,131 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:19:49,132 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:19:49,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:19:49,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:19:49,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:19:49,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:19:49,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:19:49,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:19:49,138 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:19:49,139 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_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eb031202bc5e91677d057e2e99b15d2f4511feedab41faf47e955f82709dea4 [2021-11-07 08:19:49,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:19:49,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:19:49,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:19:49,505 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:19:49,506 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:19:49,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c [2021-11-07 08:19:49,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/data/a9bb1d865/90ed435328b841888f07255c73a87e2b/FLAG455f0f4e4 [2021-11-07 08:19:50,285 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:19:50,285 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c [2021-11-07 08:19:50,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/data/a9bb1d865/90ed435328b841888f07255c73a87e2b/FLAG455f0f4e4 [2021-11-07 08:19:50,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/data/a9bb1d865/90ed435328b841888f07255c73a87e2b [2021-11-07 08:19:50,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:19:50,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:19:50,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:19:50,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:19:50,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:19:50,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:19:50" (1/1) ... [2021-11-07 08:19:50,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b793ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:50, skipping insertion in model container [2021-11-07 08:19:50,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:19:50" (1/1) ... [2021-11-07 08:19:50,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:19:50,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:19:50,930 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_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c[2897,2910] [2021-11-07 08:19:51,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:19:51,041 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:19:51,063 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_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c[2897,2910] [2021-11-07 08:19:51,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:19:51,173 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:19:51,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51 WrapperNode [2021-11-07 08:19:51,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:19:51,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:19:51,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:19:51,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:19:51,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:19:51,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:19:51,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:19:51,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:19:51,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:19:51,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:19:51,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:19:51,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:19:51,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (1/1) ... [2021-11-07 08:19:51,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:19:51,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:19:51,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:19:51,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:19:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:19:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:19:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:19:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:19:52,297 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:19:52,297 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-07 08:19:52,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:19:52 BoogieIcfgContainer [2021-11-07 08:19:52,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:19:52,301 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:19:52,302 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:19:52,306 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:19:52,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:19:52,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:19:50" (1/3) ... [2021-11-07 08:19:52,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48febc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:19:52, skipping insertion in model container [2021-11-07 08:19:52,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:19:52,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:51" (2/3) ... [2021-11-07 08:19:52,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48febc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:19:52, skipping insertion in model container [2021-11-07 08:19:52,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:19:52,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:19:52" (3/3) ... [2021-11-07 08:19:52,312 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product09.cil.c [2021-11-07 08:19:52,362 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:19:52,362 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:19:52,362 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:19:52,363 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:19:52,363 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:19:52,363 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:19:52,363 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:19:52,363 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:19:52,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 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) [2021-11-07 08:19:52,405 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-11-07 08:19:52,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:19:52,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:19:52,413 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-07 08:19:52,414 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:19:52,414 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:19:52,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 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) [2021-11-07 08:19:52,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-11-07 08:19:52,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:19:52,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:19:52,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-07 08:19:52,421 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:19:52,427 INFO L791 eck$LassoCheckResult]: Stem: 49#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 39#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 38#L417true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 37#L425true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 52#L140true assume 0 != main_~tmp~0; 43#L113true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 59#L376-1true [2021-11-07 08:19:52,428 INFO L793 eck$LassoCheckResult]: Loop: 59#L376-1true assume !false; 54#L174true assume test_~splverifierCounter~0 < 4; 6#L175true test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 26#L183true assume !(0 != test_~tmp~1); 21#L183-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 53#L193true assume !(0 != test_~tmp___0~0); 31#L193-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 25#L203true assume 0 != test_~tmp___2~0; 34#L209-2true assume !(0 != ~pumpRunning~0); 58#L242true assume 0 != ~systemActive~0; 9#L249true havoc __utac_acc__Specification3_spec__1_#t~ret30, __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 30#L839true __utac_acc__Specification3_spec__1_#t~ret30 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret30;havoc __utac_acc__Specification3_spec__1_#t~ret30; 11#L370true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 59#L376-1true [2021-11-07 08:19:52,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-07 08:19:52,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:52,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659846373] [2021-11-07 08:19:52,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:52,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:52,734 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:19:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:52,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:19:52,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:52,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1682573544, now seen corresponding path program 1 times [2021-11-07 08:19:52,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:52,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127022693] [2021-11-07 08:19:52,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:52,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:53,005 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:19:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:53,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:19:53,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:53,026 INFO L85 PathProgramCache]: Analyzing trace with hash 31705394, now seen corresponding path program 1 times [2021-11-07 08:19:53,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:53,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797743849] [2021-11-07 08:19:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:53,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:53,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:19:53,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:53,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797743849] [2021-11-07 08:19:53,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797743849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:53,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:53,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:19:53,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159347714] [2021-11-07 08:19:53,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:53,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:19:53,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:53,482 INFO L87 Difference]: Start difference. First operand has 60 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 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) Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-11-07 08:19:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:53,709 INFO L93 Difference]: Finished difference Result 185 states and 263 transitions. [2021-11-07 08:19:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 08:19:53,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 185 states and 263 transitions. [2021-11-07 08:19:53,727 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-11-07 08:19:53,744 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 185 states to 163 states and 241 transitions. [2021-11-07 08:19:53,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 163 [2021-11-07 08:19:53,747 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 163 [2021-11-07 08:19:53,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 163 states and 241 transitions. [2021-11-07 08:19:53,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:19:53,749 INFO L681 BuchiCegarLoop]: Abstraction has 163 states and 241 transitions. [2021-11-07 08:19:53,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states and 241 transitions. [2021-11-07 08:19:53,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 100. [2021-11-07 08:19:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.4) internal successors, (140), 99 states have internal predecessors, (140), 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) [2021-11-07 08:19:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 140 transitions. [2021-11-07 08:19:53,823 INFO L704 BuchiCegarLoop]: Abstraction has 100 states and 140 transitions. [2021-11-07 08:19:53,823 INFO L587 BuchiCegarLoop]: Abstraction has 100 states and 140 transitions. [2021-11-07 08:19:53,823 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:19:53,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 140 transitions. [2021-11-07 08:19:53,830 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 70 [2021-11-07 08:19:53,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:19:53,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:19:53,835 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-07 08:19:53,836 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:19:53,836 INFO L791 eck$LassoCheckResult]: Stem: 329#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 318#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 317#L417 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 315#L425 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 316#L140 assume 0 != main_~tmp~0; 322#L113 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 323#L376-1 [2021-11-07 08:19:53,837 INFO L793 eck$LassoCheckResult]: Loop: 323#L376-1 assume !false; 353#L174 assume test_~splverifierCounter~0 < 4; 354#L175 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 302#L183 assume !(0 != test_~tmp~1); 295#L183-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 296#L193 assume !(0 != test_~tmp___0~0); 306#L193-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 299#L203 assume 0 != test_~tmp___2~0; 300#L209-2 assume !(0 != ~pumpRunning~0); 309#L242 assume 0 != ~systemActive~0; 335#L249 havoc __utac_acc__Specification3_spec__1_#t~ret30, __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 305#L839 __utac_acc__Specification3_spec__1_#t~ret30 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret30;havoc __utac_acc__Specification3_spec__1_#t~ret30; 281#L370 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 282#L871 __utac_acc__Specification3_spec__1_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 307#L376 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 323#L376-1 [2021-11-07 08:19:53,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:53,840 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-07 08:19:53,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:53,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333793651] [2021-11-07 08:19:53,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:53,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:53,937 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:19:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:54,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:19:54,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2045467414, now seen corresponding path program 1 times [2021-11-07 08:19:54,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:54,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118110664] [2021-11-07 08:19:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:54,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:54,070 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:19:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:54,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:19:54,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash 404117636, now seen corresponding path program 1 times [2021-11-07 08:19:54,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:54,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910739961] [2021-11-07 08:19:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:54,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:54,146 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:19:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:19:54,231 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:21:04,563 WARN L207 SmtUtils]: Spent 1.17 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-07 08:22:15,662 WARN L207 SmtUtils]: Spent 34.61 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-07 08:22:15,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:22:15 BoogieIcfgContainer [2021-11-07 08:22:15,877 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:22:15,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:22:15,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:22:15,878 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:22:15,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:19:52" (3/4) ... [2021-11-07 08:22:15,880 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-07 08:22:15,928 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:22:15,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:22:15,929 INFO L168 Benchmark]: Toolchain (without parser) took 145342.22 ms. Allocated memory was 81.8 MB in the beginning and 123.7 MB in the end (delta: 41.9 MB). Free memory was 43.8 MB in the beginning and 63.0 MB in the end (delta: -19.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:15,930 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 81.8 MB. Free memory was 61.5 MB in the beginning and 61.4 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:22:15,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.07 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 43.6 MB in the beginning and 69.5 MB in the end (delta: -26.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:15,931 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.03 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 66.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:15,932 INFO L168 Benchmark]: Boogie Preprocessor took 72.39 ms. Allocated memory is still 102.8 MB. Free memory was 66.5 MB in the beginning and 64.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:15,933 INFO L168 Benchmark]: RCFGBuilder took 952.21 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 72.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:15,934 INFO L168 Benchmark]: BuchiAutomizer took 143575.66 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 71.6 MB in the beginning and 65.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 71.3 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:15,934 INFO L168 Benchmark]: Witness Printer took 50.53 ms. Allocated memory is still 123.7 MB. Free memory was 65.1 MB in the beginning and 63.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:22:15,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 81.8 MB. Free memory was 61.5 MB in the beginning and 61.4 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 586.07 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 43.6 MB in the beginning and 69.5 MB in the end (delta: -26.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.03 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 66.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.39 ms. Allocated memory is still 102.8 MB. Free memory was 66.5 MB in the beginning and 64.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 952.21 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 72.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143575.66 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 71.6 MB in the beginning and 65.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 71.3 MB. Max. memory is 16.1 GB. * Witness Printer took 50.53 ms. Allocated memory is still 123.7 MB. Free memory was 65.1 MB in the beginning and 63.0 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 5 locations. The remainder module has 100 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 143.0s. Construction of modules took 0.0s. 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 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 100 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 106 SDtfs, 280 SDslu, 300 SDs, 0 SdLazy, 43 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 173]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=4041, NULL=0, NULL=0, NULL=0, NULL=32460, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@720b00c8=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@292e8222=0, NULL=1, NULL=0, NULL=32456, NULL=32450, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f3b7aa6=43, NULL=32461, NULL=32459, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c319c1a=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1240e4c=0, NULL=32451, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b818c5d=0, NULL=0, tmp___1=0, NULL=32445, NULL=32443, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=32441, tmp=0, NULL=32455, NULL=4040, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=4038, \result=1, head=0, pumpRunning=0, tmp=1, NULL=32446, \result=0, NULL=32453, NULL=4037, NULL=32449, NULL=0, NULL=32447, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8d98d1e=0, NULL=0, retValue_acc=1, NULL=0, NULL=32458, NULL=0, NULL=0, retValue_acc=1, NULL=4042, NULL=0, tmp___2=43, splverifierCounter=0, NULL=0, \result=0, NULL=4043, NULL=32452, NULL=32448, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dbb1864=0, tmp___1=0, head=0, NULL=4039, NULL=32444, NULL=32457, NULL=32442, NULL=32454} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L234] int pumpRunning = 0; [L235] int systemActive = 1; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L796] int waterLevel = 1; [L797] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L421] int retValue_acc ; [L424] retValue_acc = 1 [L425] return (retValue_acc); [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L164] int splverifierCounter ; [L165] int tmp ; [L166] int tmp___0 ; [L167] int tmp___1 ; [L168] int tmp___2 ; [L171] splverifierCounter = 0 Loop: [L173] COND TRUE 1 [L175] COND TRUE splverifierCounter < 4 [L181] tmp = __VERIFIER_nondet_int() [L183] COND FALSE !(\read(tmp)) [L191] tmp___0 = __VERIFIER_nondet_int() [L193] COND FALSE !(\read(tmp___0)) [L201] tmp___2 = __VERIFIER_nondet_int() [L203] COND TRUE \read(tmp___2) [L242] COND FALSE !(\read(pumpRunning)) [L249] COND TRUE \read(systemActive) [L362] int tmp ; [L363] int tmp___0 ; [L364] int tmp___1 ; [L835] int retValue_acc ; [L838] retValue_acc = methaneLevelCritical [L839] return (retValue_acc); [L368] tmp = isMethaneLevelCritical() [L370] COND FALSE !(\read(tmp)) [L867] int retValue_acc ; [L870] retValue_acc = waterLevel [L871] return (retValue_acc); [L374] tmp___0 = getWaterLevel() [L376] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-07 08:22:16,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e57c30-8aeb-41db-9c19-bb8b0ed1478d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)