./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product13.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_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/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_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/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_30c391e4-0482-4ee1-972c-0590ebe4f129/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 064e28b4ed1e0fa289bf741887467e59793fab1f ....................................................................................................................................................................................................................................................................................................................................................................................... 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 01:24:14,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:24:14,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:24:14,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:24:14,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:24:14,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:24:14,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:24:14,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:24:14,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:24:14,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:24:14,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:24:14,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:24:14,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:24:14,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:24:14,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:24:14,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:24:14,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:24:14,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:24:14,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:24:14,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:24:14,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:24:14,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:24:14,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:24:14,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:24:14,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:24:14,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:24:14,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:24:14,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:24:14,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:24:14,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:24:14,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:24:14,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:24:14,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:24:14,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:24:14,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:24:14,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:24:14,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:24:14,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:24:14,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:24:14,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:24:14,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:24:14,148 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:24:14,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:24:14,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:24:14,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:24:14,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:24:14,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:24:14,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:24:14,204 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:24:14,204 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:24:14,205 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:24:14,205 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:24:14,206 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:24:14,206 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:24:14,206 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:24:14,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:24:14,207 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:24:14,207 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:24:14,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:24:14,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:24:14,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:24:14,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:24:14,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:24:14,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:24:14,209 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:24:14,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:24:14,209 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:24:14,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:24:14,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:24:14,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:24:14,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:24:14,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:24:14,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:24:14,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:24:14,212 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:24:14,212 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_30c391e4-0482-4ee1-972c-0590ebe4f129/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 064e28b4ed1e0fa289bf741887467e59793fab1f [2021-10-13 01:24:14,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:24:14,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:24:14,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:24:14,598 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:24:14,599 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:24:14,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec1_product13.cil.c [2021-10-13 01:24:14,660 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/data/12056aaf6/b7e1db92054a42a484f4772b4311eb8c/FLAG5b79494f1 [2021-10-13 01:24:15,212 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:24:15,213 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/sv-benchmarks/c/product-lines/minepump_spec1_product13.cil.c [2021-10-13 01:24:15,230 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/data/12056aaf6/b7e1db92054a42a484f4772b4311eb8c/FLAG5b79494f1 [2021-10-13 01:24:15,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/data/12056aaf6/b7e1db92054a42a484f4772b4311eb8c [2021-10-13 01:24:15,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:24:15,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:24:15,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:24:15,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:24:15,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:24:15,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:24:15" (1/1) ... [2021-10-13 01:24:15,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd13ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:15, skipping insertion in model container [2021-10-13 01:24:15,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:24:15" (1/1) ... [2021-10-13 01:24:15,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:24:15,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:24:15,874 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_30c391e4-0482-4ee1-972c-0590ebe4f129/sv-benchmarks/c/product-lines/minepump_spec1_product13.cil.c[12170,12183] [2021-10-13 01:24:15,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:24:15,914 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:24:15,968 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_30c391e4-0482-4ee1-972c-0590ebe4f129/sv-benchmarks/c/product-lines/minepump_spec1_product13.cil.c[12170,12183] [2021-10-13 01:24:15,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:24:16,013 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:24:16,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16 WrapperNode [2021-10-13 01:24:16,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:24:16,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:24:16,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:24:16,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:24:16,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:24:16,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:24:16,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:24:16,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:24:16,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:24:16,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:24:16,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:24:16,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:24:16,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (1/1) ... [2021-10-13 01:24:16,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:24:16,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:24:16,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:24:16,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:24:16,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:24:16,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:24:16,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:24:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:24:17,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:24:17,101 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-13 01:24:17,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:24:17 BoogieIcfgContainer [2021-10-13 01:24:17,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:24:17,104 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:24:17,104 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:24:17,108 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:24:17,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:24:17,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:24:15" (1/3) ... [2021-10-13 01:24:17,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a8bc147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:24:17, skipping insertion in model container [2021-10-13 01:24:17,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:24:17,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:16" (2/3) ... [2021-10-13 01:24:17,112 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a8bc147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:24:17, skipping insertion in model container [2021-10-13 01:24:17,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:24:17,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:24:17" (3/3) ... [2021-10-13 01:24:17,113 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product13.cil.c [2021-10-13 01:24:17,163 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:24:17,163 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:24:17,163 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:24:17,164 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:24:17,164 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:24:17,164 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:24:17,164 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:24:17,164 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:24:17,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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 01:24:17,201 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-13 01:24:17,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:24:17,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:24:17,211 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:24:17,211 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:24:17,212 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:24:17,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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 01:24:17,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-13 01:24:17,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:24:17,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:24:17,220 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:24:17,221 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:24:17,234 INFO L791 eck$LassoCheckResult]: Stem: 48#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #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(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 37#L-1true havoc main_#res;havoc main_#t~ret53, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 38#L528true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 65#L536true main_#t~ret53 := valid_product_#res;main_~tmp~3 := main_#t~ret53;havoc main_#t~ret53; 4#L626true assume 0 != main_~tmp~3; 13#L602true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 5#L649-1true [2021-10-13 01:24:17,235 INFO L793 eck$LassoCheckResult]: Loop: 5#L649-1true assume !false; 34#L678true assume test_~splverifierCounter~0 < 4; 32#L679true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 49#L687true assume !(0 != test_~tmp~5); 47#L687-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 31#L697true assume !(0 != test_~tmp___0~1); 16#L697-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 12#L707true assume 0 != test_~tmp___2~0; 14#L713-2true assume !(0 != ~pumpRunning~0); 52#L741true assume !(0 != ~systemActive~0); 36#L748true havoc __utac_acc__Specification1_spec__1_#t~ret54, __utac_acc__Specification1_spec__1_#t~ret55, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 9#L457-1true __utac_acc__Specification1_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret54;havoc __utac_acc__Specification1_spec__1_#t~ret54; 55#L649true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 5#L649-1true [2021-10-13 01:24:17,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:24:17,240 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 01:24:17,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:24:17,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391347988] [2021-10-13 01:24:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:24:17,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:24:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:17,564 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:24:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:17,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:24:17,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:24:17,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899262, now seen corresponding path program 1 times [2021-10-13 01:24:17,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:24:17,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76263119] [2021-10-13 01:24:17,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:24:17,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:24:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:17,709 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:24:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:17,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:24:17,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:24:17,724 INFO L82 PathProgramCache]: Analyzing trace with hash 32379676, now seen corresponding path program 1 times [2021-10-13 01:24:17,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:24:17,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094672591] [2021-10-13 01:24:17,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:24:17,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:24:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:24:17,899 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 01:24:17,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:24:17,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094672591] [2021-10-13 01:24:17,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094672591] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:24:17,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:24:17,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:24:17,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999156371] [2021-10-13 01:24:18,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:24:18,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:24:18,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:24:18,090 INFO L87 Difference]: Start difference. First operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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 01:24:18,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:24:18,309 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2021-10-13 01:24:18,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:24:18,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 88 transitions. [2021-10-13 01:24:18,320 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 01:24:18,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2021-10-13 01:24:18,326 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-10-13 01:24:18,326 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-10-13 01:24:18,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-10-13 01:24:18,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:24:18,328 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-13 01:24:18,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-10-13 01:24:18,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-13 01:24:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 states have internal predecessors, (81), 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 01:24:18,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-10-13 01:24:18,371 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-13 01:24:18,372 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-13 01:24:18,372 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:24:18,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-10-13 01:24:18,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 01:24:18,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:24:18,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:24:18,380 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:24:18,381 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:24:18,381 INFO L791 eck$LassoCheckResult]: Stem: 204#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #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(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 197#L-1 havoc main_#res;havoc main_#t~ret53, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 198#L528 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 199#L536 main_#t~ret53 := valid_product_#res;main_~tmp~3 := main_#t~ret53;havoc main_#t~ret53; 150#L626 assume 0 != main_~tmp~3; 151#L602 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 154#L649-1 [2021-10-13 01:24:18,381 INFO L793 eck$LassoCheckResult]: Loop: 154#L649-1 assume !false; 155#L678 assume test_~splverifierCounter~0 < 4; 194#L679 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 195#L687 assume !(0 != test_~tmp~5); 179#L687-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 191#L697 assume !(0 != test_~tmp___0~1); 173#L697-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 165#L707 assume 0 != test_~tmp___2~0; 166#L713-2 assume !(0 != ~pumpRunning~0); 168#L741 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 200#L773 assume !(0 != ~pumpRunning~0); 186#L748 havoc __utac_acc__Specification1_spec__1_#t~ret54, __utac_acc__Specification1_spec__1_#t~ret55, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 161#L457-1 __utac_acc__Specification1_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret54;havoc __utac_acc__Specification1_spec__1_#t~ret54; 162#L649 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 154#L649-1 [2021-10-13 01:24:18,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:24:18,382 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 01:24:18,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:24:18,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657460772] [2021-10-13 01:24:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:24:18,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:24:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:18,471 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:24:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:18,545 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:24:18,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:24:18,546 INFO L82 PathProgramCache]: Analyzing trace with hash -619797861, now seen corresponding path program 1 times [2021-10-13 01:24:18,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:24:18,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074529938] [2021-10-13 01:24:18,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:24:18,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:24:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:18,551 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:24:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:18,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:24:18,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:24:18,559 INFO L82 PathProgramCache]: Analyzing trace with hash 983241665, now seen corresponding path program 1 times [2021-10-13 01:24:18,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:24:18,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479250651] [2021-10-13 01:24:18,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:24:18,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:24:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:18,634 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:24:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:24:18,687 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:16,001 WARN L207 SmtUtils]: Spent 57.22 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 01:26:09,239 WARN L207 SmtUtils]: Spent 25.64 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 01:26:09,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:26:09 BoogieIcfgContainer [2021-10-13 01:26:09,387 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:26:09,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:26:09,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:26:09,388 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:26:09,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:24:17" (3/4) ... [2021-10-13 01:26:09,391 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:26:09,444 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:26:09,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:26:09,446 INFO L168 Benchmark]: Toolchain (without parser) took 113947.59 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 55.1 MB in the beginning and 38.4 MB in the end (delta: 16.7 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:26:09,447 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory is still 72.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:26:09,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.25 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 55.0 MB in the beginning and 86.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:26:09,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.49 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 83.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:26:09,449 INFO L168 Benchmark]: Boogie Preprocessor took 80.92 ms. Allocated memory is still 119.5 MB. Free memory was 83.8 MB in the beginning and 81.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:26:09,450 INFO L168 Benchmark]: RCFGBuilder took 905.78 ms. Allocated memory is still 119.5 MB. Free memory was 81.3 MB in the beginning and 43.7 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:26:09,451 INFO L168 Benchmark]: BuchiAutomizer took 112283.72 ms. Allocated memory is still 119.5 MB. Free memory was 43.7 MB in the beginning and 40.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:26:09,451 INFO L168 Benchmark]: Witness Printer took 56.86 ms. Allocated memory is still 119.5 MB. Free memory was 40.5 MB in the beginning and 38.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:26:09,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory is still 72.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.25 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 55.0 MB in the beginning and 86.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.49 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 83.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.92 ms. Allocated memory is still 119.5 MB. Free memory was 83.8 MB in the beginning and 81.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 905.78 ms. Allocated memory is still 119.5 MB. Free memory was 81.3 MB in the beginning and 43.7 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 112283.72 ms. Allocated memory is still 119.5 MB. Free memory was 43.7 MB in the beginning and 40.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Witness Printer took 56.86 ms. Allocated memory is still 119.5 MB. Free memory was 40.5 MB in the beginning and 38.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 112.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 111.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 27.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 83 SDtfs, 331 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 151.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 677]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28989} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=28989, NULL=0, retValue_acc=0, NULL=68435, NULL=0, NULL=68414, NULL=28990, methaneLevelCritical=0, NULL=68421, NULL=68413, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@361b828a=0, NULL=0, NULL=68428, tmp___1=0, NULL=68430, NULL=0, NULL=0, tmp___0=0, NULL=68416, NULL=68434, NULL=68422, cleanupTimeShifts=4, NULL=68433, NULL=68432, NULL=68419, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a6a5ef1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57ecc707=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=68423, NULL=68420, \result=1, head=0, pumpRunning=0, NULL=68425, \result=0, tmp=1, NULL=36016, NULL=0, NULL=68426, NULL=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=68436, retValue_acc=1, NULL=0, NULL=0, NULL=0, NULL=68418, NULL=0, tmp___2=70, NULL=68437, tmp___0=0, NULL=68417, splverifierCounter=0, NULL=0, \result=0, NULL=68427, NULL=36015, NULL=68424, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6af487a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60e9ba87=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31a0e744=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@233c1801=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a172186=0, head=0, NULL=0, NULL=0, tmp=0, NULL=68431, NULL=0, NULL=0, NULL=68415, NULL=68429} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L541] int cleanupTimeShifts = 4; [L734] int pumpRunning = 0; [L735] int systemActive = 1; [L617] int retValue_acc ; [L618] int tmp ; [L532] int retValue_acc ; [L535] retValue_acc = 1 [L536] return (retValue_acc); [L624] tmp = valid_product() [L626] COND TRUE \read(tmp) [L668] int splverifierCounter ; [L669] int tmp ; [L670] int tmp___0 ; [L671] int tmp___1 ; [L672] int tmp___2 ; [L675] splverifierCounter = 0 Loop: [L677] COND TRUE 1 [L679] COND TRUE splverifierCounter < 4 [L685] tmp = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp)) [L695] tmp___0 = __VERIFIER_nondet_int() [L697] COND FALSE !(\read(tmp___0)) [L705] tmp___2 = __VERIFIER_nondet_int() [L707] COND TRUE \read(tmp___2) [L741] COND FALSE !(\read(pumpRunning)) [L748] COND TRUE \read(systemActive) [L770] int tmp ; [L773] COND FALSE !(\read(pumpRunning)) [L642] int tmp ; [L643] int tmp___0 ; [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); [L647] tmp = isMethaneLevelCritical() [L649] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:26:09,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c391e4-0482-4ee1-972c-0590ebe4f129/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...