./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product07.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_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/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_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/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_fbc3a794-1239-4638-bcea-53946e903f76/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 29f60ab23b0720fb228075ebf2c9266e59f8b9dd ....................................................................................................................................................................................................................................................................................................................................................................................... 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 00:19:46,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:19:46,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:19:46,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:19:46,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:19:46,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:19:46,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:19:46,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:19:46,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:19:46,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:19:46,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:19:46,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:19:46,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:19:46,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:19:46,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:19:46,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:19:46,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:19:46,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:19:46,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:19:46,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:19:46,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:19:46,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:19:46,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:19:46,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:19:46,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:19:46,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:19:46,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:19:46,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:19:46,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:19:46,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:19:46,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:19:46,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:19:46,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:19:46,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:19:46,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:19:46,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:19:46,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:19:46,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:19:46,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:19:46,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:19:46,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:19:46,916 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:19:46,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:19:46,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:19:46,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:19:46,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:19:46,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:19:46,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:19:46,961 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:19:46,962 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:19:46,962 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:19:46,962 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:19:46,963 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:19:46,963 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:19:46,964 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:19:46,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:19:46,964 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:19:46,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:19:46,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:19:46,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:19:46,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:19:46,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:19:46,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:19:46,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:19:46,966 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:19:46,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:19:46,966 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:19:46,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:19:46,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:19:46,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:19:46,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:19:46,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:19:46,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:19:46,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:19:46,970 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:19:46,970 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_fbc3a794-1239-4638-bcea-53946e903f76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29f60ab23b0720fb228075ebf2c9266e59f8b9dd [2021-10-13 00:19:47,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:19:47,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:19:47,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:19:47,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:19:47,246 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:19:47,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2021-10-13 00:19:47,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/data/7b201845d/e5a3ad3ee4814666807a36157478e0f0/FLAGcd0998af6 [2021-10-13 00:19:47,891 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:19:47,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2021-10-13 00:19:47,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/data/7b201845d/e5a3ad3ee4814666807a36157478e0f0/FLAGcd0998af6 [2021-10-13 00:19:48,225 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/data/7b201845d/e5a3ad3ee4814666807a36157478e0f0 [2021-10-13 00:19:48,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:19:48,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:19:48,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:19:48,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:19:48,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:19:48,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@663ee150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48, skipping insertion in model container [2021-10-13 00:19:48,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:19:48,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:19:48,519 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_fbc3a794-1239-4638-bcea-53946e903f76/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c[2887,2900] [2021-10-13 00:19:48,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:19:48,608 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:19:48,629 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_fbc3a794-1239-4638-bcea-53946e903f76/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c[2887,2900] [2021-10-13 00:19:48,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:19:48,715 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:19:48,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48 WrapperNode [2021-10-13 00:19:48,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:19:48,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:19:48,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:19:48,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:19:48,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:19:48,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:19:48,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:19:48,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:19:48,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:19:48,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:19:48,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:19:48,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:19:48,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (1/1) ... [2021-10-13 00:19:48,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:48,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:48,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:48,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:19:48,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:19:48,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:19:48,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:19:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:19:49,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:19:49,783 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-10-13 00:19:49,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:49 BoogieIcfgContainer [2021-10-13 00:19:49,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:19:49,787 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:19:49,787 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:19:49,790 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:19:49,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:49,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:19:48" (1/3) ... [2021-10-13 00:19:49,793 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48b1e0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:19:49, skipping insertion in model container [2021-10-13 00:19:49,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:49,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:48" (2/3) ... [2021-10-13 00:19:49,794 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48b1e0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:19:49, skipping insertion in model container [2021-10-13 00:19:49,794 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:49,794 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:49" (3/3) ... [2021-10-13 00:19:49,796 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product07.cil.c [2021-10-13 00:19:49,846 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:19:49,847 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:19:49,847 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:19:49,847 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:19:49,847 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:19:49,847 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:19:49,847 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:19:49,848 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:19:49,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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 00:19:49,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-13 00:19:49,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:49,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:49,907 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:19:49,907 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:49,908 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:19:49,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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 00:19:49,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-13 00:19:49,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:49,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:49,923 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:19:49,923 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:49,934 INFO L791 eck$LassoCheckResult]: Stem: 53#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~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(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 42#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 58#L411true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 7#L419true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 46#L506true assume 0 != main_~tmp~3; 35#L483true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 34#L138-1true [2021-10-13 00:19:49,935 INFO L793 eck$LassoCheckResult]: Loop: 34#L138-1true assume !false; 50#L330true assume test_~splverifierCounter~0 < 4; 11#L331true test_~tmp~2 := test_#t~nondet37;havoc test_#t~nondet37; 66#L339true assume !(0 != test_~tmp~2); 48#L339-1true test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 19#L349true assume !(0 != test_~tmp___0~1); 28#L349-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 27#L359true assume 0 != test_~tmp___2~0; 10#L365-1true assume !(0 != ~pumpRunning~0); 56#L177true assume !(0 != ~systemActive~0); 17#L184true havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 38#L91-1true __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 68#L138true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 34#L138-1true [2021-10-13 00:19:49,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:49,941 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:19:49,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:49,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051200673] [2021-10-13 00:19:49,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:49,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:50,277 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:50,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:50,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:50,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310517, now seen corresponding path program 1 times [2021-10-13 00:19:50,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:50,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352996773] [2021-10-13 00:19:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:50,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:50,507 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:50,523 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:50,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:50,529 INFO L82 PathProgramCache]: Analyzing trace with hash 40968421, now seen corresponding path program 1 times [2021-10-13 00:19:50,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:50,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260354096] [2021-10-13 00:19:50,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:50,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:50,731 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 00:19:50,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:19:50,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260354096] [2021-10-13 00:19:50,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260354096] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:19:50,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:19:50,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:19:50,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517963123] [2021-10-13 00:19:50,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:50,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:19:50,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:19:50,893 INFO L87 Difference]: Start difference. First operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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 00:19:51,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:51,199 INFO L93 Difference]: Finished difference Result 180 states and 246 transitions. [2021-10-13 00:19:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:19:51,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 246 transitions. [2021-10-13 00:19:51,206 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 113 [2021-10-13 00:19:51,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 159 states and 225 transitions. [2021-10-13 00:19:51,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2021-10-13 00:19:51,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2021-10-13 00:19:51,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 225 transitions. [2021-10-13 00:19:51,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:19:51,229 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 225 transitions. [2021-10-13 00:19:51,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 225 transitions. [2021-10-13 00:19:51,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 102. [2021-10-13 00:19:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 102 states have (on average 1.411764705882353) internal successors, (144), 101 states have internal predecessors, (144), 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 00:19:51,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2021-10-13 00:19:51,261 INFO L704 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2021-10-13 00:19:51,261 INFO L587 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2021-10-13 00:19:51,261 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:19:51,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2021-10-13 00:19:51,263 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2021-10-13 00:19:51,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:51,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:51,264 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:19:51,265 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:51,265 INFO L791 eck$LassoCheckResult]: Stem: 322#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~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(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 312#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 313#L411 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 272#L419 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 273#L506 assume 0 != main_~tmp~3; 305#L483 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 303#L138-1 [2021-10-13 00:19:51,265 INFO L793 eck$LassoCheckResult]: Loop: 303#L138-1 assume !false; 304#L330 assume test_~splverifierCounter~0 < 4; 277#L331 test_~tmp~2 := test_#t~nondet37;havoc test_#t~nondet37; 278#L339 assume !(0 != test_~tmp~2); 307#L339-1 test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 289#L349 assume !(0 != test_~tmp___0~1); 290#L349-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 297#L359 assume 0 != test_~tmp___2~0; 276#L365-1 assume !(0 != ~pumpRunning~0); 269#L177 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 314#L209 assume !(0 != ~pumpRunning~0); 285#L184 havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 286#L91-1 __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 309#L138 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 303#L138-1 [2021-10-13 00:19:51,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:51,266 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:19:51,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:51,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429842661] [2021-10-13 00:19:51,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:51,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:51,310 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:51,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:51,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:51,368 INFO L82 PathProgramCache]: Analyzing trace with hash -353546757, now seen corresponding path program 1 times [2021-10-13 00:19:51,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:51,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206352450] [2021-10-13 00:19:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:51,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:51,373 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:51,383 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:51,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:51,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492769, now seen corresponding path program 1 times [2021-10-13 00:19:51,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:51,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408100800] [2021-10-13 00:19:51,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:51,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:51,452 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:51,501 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:42,226 WARN L207 SmtUtils]: Spent 50.62 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:21:32,763 WARN L207 SmtUtils]: Spent 24.91 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:21:32,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:21:32 BoogieIcfgContainer [2021-10-13 00:21:32,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:21:32,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:21:32,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:21:32,890 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:21:32,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:49" (3/4) ... [2021-10-13 00:21:32,893 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:21:32,945 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:21:32,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:21:32,947 INFO L168 Benchmark]: Toolchain (without parser) took 104717.47 ms. Allocated memory was 109.1 MB in the beginning and 167.8 MB in the end (delta: 58.7 MB). Free memory was 77.7 MB in the beginning and 122.8 MB in the end (delta: -45.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:32,948 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 62.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:21:32,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.15 ms. Allocated memory is still 109.1 MB. Free memory was 77.4 MB in the beginning and 74.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:32,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.92 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 71.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:32,950 INFO L168 Benchmark]: Boogie Preprocessor took 69.05 ms. Allocated memory is still 109.1 MB. Free memory was 71.4 MB in the beginning and 69.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:32,951 INFO L168 Benchmark]: RCFGBuilder took 930.70 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 69.3 MB in the beginning and 93.3 MB in the end (delta: -24.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:32,951 INFO L168 Benchmark]: BuchiAutomizer took 103102.09 ms. Allocated memory was 136.3 MB in the beginning and 167.8 MB in the end (delta: 31.5 MB). Free memory was 93.3 MB in the beginning and 126.0 MB in the end (delta: -32.7 MB). Peak memory consumption was 87.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:32,952 INFO L168 Benchmark]: Witness Printer took 56.65 ms. Allocated memory is still 167.8 MB. Free memory was 124.9 MB in the beginning and 122.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:32,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 62.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.15 ms. Allocated memory is still 109.1 MB. Free memory was 77.4 MB in the beginning and 74.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.92 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 71.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.05 ms. Allocated memory is still 109.1 MB. Free memory was 71.4 MB in the beginning and 69.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 930.70 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 69.3 MB in the beginning and 93.3 MB in the end (delta: -24.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 103102.09 ms. Allocated memory was 136.3 MB in the beginning and 167.8 MB in the end (delta: 31.5 MB). Free memory was 93.3 MB in the beginning and 126.0 MB in the end (delta: -32.7 MB). Peak memory consumption was 87.4 MB. Max. memory is 16.1 GB. * Witness Printer took 56.65 ms. Allocated memory is still 167.8 MB. Free memory was 124.9 MB in the beginning and 122.8 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 102 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 103.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 102.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 20.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 57 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 102 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 89 SDtfs, 334 SDslu, 497 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 192.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 329]: 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=0, retValue_acc=0, NULL=0, NULL=0, NULL=31639, NULL=0, NULL=1, NULL=31642, retValue_acc=0, NULL=0, NULL=31624, NULL=31641, NULL=31616, methaneLevelCritical=0, NULL=31632, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67add52c=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fc001bc=0, tmp___0=0, NULL=31631, NULL=31618, cleanupTimeShifts=4, NULL=31627, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a58e88c=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bde9e34=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e2f857f=0, NULL=31637, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e4a61a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55be7b4=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@224a9a17=0, NULL=31626, NULL=0, NULL=31629, \result=1, head=0, pumpRunning=0, \result=0, tmp=1, NULL=31623, NULL=0, NULL=31617, NULL=0, NULL=0, NULL=0, tmp=0, retValue_acc=1, NULL=31615, NULL=31634, NULL=0, NULL=0, NULL=31622, NULL=0, NULL=0, NULL=31630, tmp___2=76, NULL=0, NULL=31636, tmp___0=0, NULL=31633, splverifierCounter=0, NULL=0, \result=0, NULL=31640, NULL=31625, NULL=31621, tmp=0, head=0, NULL=0, NULL=0, NULL=31619, NULL=0, NULL=31628, NULL=31635, NULL=0, NULL=31638, NULL=31620} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L170] int pumpRunning = 0; [L171] int systemActive = 1; [L424] int cleanupTimeShifts = 4; [L689] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L497] int retValue_acc ; [L498] int tmp ; [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L320] int splverifierCounter ; [L321] int tmp ; [L322] int tmp___0 ; [L323] int tmp___1 ; [L324] int tmp___2 ; [L327] splverifierCounter = 0 Loop: [L329] COND TRUE 1 [L331] COND TRUE splverifierCounter < 4 [L337] tmp = __VERIFIER_nondet_int() [L339] COND FALSE !(\read(tmp)) [L347] tmp___0 = __VERIFIER_nondet_int() [L349] COND FALSE !(\read(tmp___0)) [L357] tmp___2 = __VERIFIER_nondet_int() [L359] COND TRUE \read(tmp___2) [L177] COND FALSE !(\read(pumpRunning)) [L184] COND TRUE \read(systemActive) [L206] int tmp ; [L209] COND FALSE !(\read(pumpRunning)) [L131] int tmp ; [L132] int tmp___0 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L136] tmp = isMethaneLevelCritical() [L138] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:21:33,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbc3a794-1239-4638-bcea-53946e903f76/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...