./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD --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 a318d1932a4cf515b7769fbc74b3ae8791db0dd09e5b989a4577a3be2cae3270 .......................................................................................................................................................................................................................................................................................................................................................................................... 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-b2eff8b [2021-10-28 23:55:31,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:55:31,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:55:31,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:55:31,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:55:31,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:55:31,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:55:32,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:55:32,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:55:32,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:55:32,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:55:32,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:55:32,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:55:32,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:55:32,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:55:32,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:55:32,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:55:32,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:55:32,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:55:32,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:55:32,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:55:32,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:55:32,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:55:32,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:55:32,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:55:32,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:55:32,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:55:32,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:55:32,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:55:32,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:55:32,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:55:32,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:55:32,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:55:32,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:55:32,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:55:32,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:55:32,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:55:32,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:55:32,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:55:32,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:55:32,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:55:32,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:55:32,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:55:32,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:55:32,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:55:32,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:55:32,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:55:32,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:55:32,092 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:55:32,092 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:55:32,092 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:55:32,093 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:55:32,093 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:55:32,093 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:55:32,093 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:55:32,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:55:32,094 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:55:32,094 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:55:32,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:55:32,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:55:32,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:55:32,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:55:32,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:55:32,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:55:32,095 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:55:32,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:55:32,096 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:55:32,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:55:32,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:55:32,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:55:32,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:55:32,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:55:32,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:55:32,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:55:32,101 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:55:32,102 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_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a318d1932a4cf515b7769fbc74b3ae8791db0dd09e5b989a4577a3be2cae3270 [2021-10-28 23:55:32,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:55:32,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:55:32,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:55:32,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:55:32,473 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:55:32,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec2_product13.cil.c [2021-10-28 23:55:32,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/data/a86b5df63/11263e999d0a415e8655a0413b1cc8c1/FLAG09d410bee [2021-10-28 23:55:33,187 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:55:33,187 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/sv-benchmarks/c/product-lines/minepump_spec2_product13.cil.c [2021-10-28 23:55:33,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/data/a86b5df63/11263e999d0a415e8655a0413b1cc8c1/FLAG09d410bee [2021-10-28 23:55:33,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/data/a86b5df63/11263e999d0a415e8655a0413b1cc8c1 [2021-10-28 23:55:33,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:55:33,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:55:33,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:55:33,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:55:33,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:55:33,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:55:33" (1/1) ... [2021-10-28 23:55:33,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61dc6186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:33, skipping insertion in model container [2021-10-28 23:55:33,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:55:33" (1/1) ... [2021-10-28 23:55:33,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:55:33,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:55:33,818 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_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/sv-benchmarks/c/product-lines/minepump_spec2_product13.cil.c[2562,2575] [2021-10-28 23:55:33,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:55:33,977 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:55:33,992 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_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/sv-benchmarks/c/product-lines/minepump_spec2_product13.cil.c[2562,2575] [2021-10-28 23:55:34,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:55:34,079 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:55:34,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34 WrapperNode [2021-10-28 23:55:34,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:55:34,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:55:34,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:55:34,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:55:34,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:55:34,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:55:34,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:55:34,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:55:34,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:55:34,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:55:34,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:55:34,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:55:34,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (1/1) ... [2021-10-28 23:55:34,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:34,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:34,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:34,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:55:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:55:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:55:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:55:34,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:55:35,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:55:35,129 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-10-28 23:55:35,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:55:35 BoogieIcfgContainer [2021-10-28 23:55:35,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:55:35,134 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:55:35,134 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:55:35,138 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:55:35,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:35,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:55:33" (1/3) ... [2021-10-28 23:55:35,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17ed1a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:55:35, skipping insertion in model container [2021-10-28 23:55:35,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:35,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:34" (2/3) ... [2021-10-28 23:55:35,143 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17ed1a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:55:35, skipping insertion in model container [2021-10-28 23:55:35,143 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:35,143 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:55:35" (3/3) ... [2021-10-28 23:55:35,144 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product13.cil.c [2021-10-28 23:55:35,207 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:55:35,207 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:55:35,207 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:55:35,207 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:55:35,208 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:55:35,208 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:55:35,208 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:55:35,208 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:55:35,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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) [2021-10-28 23:55:35,247 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-28 23:55:35,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:35,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:35,257 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:35,257 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:35,257 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:55:35,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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) [2021-10-28 23:55:35,264 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-28 23:55:35,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:35,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:35,265 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:35,265 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:35,271 INFO L791 eck$LassoCheckResult]: Stem: 59#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 50#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 13#L677true 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; 25#L685true main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 18#L893true assume 0 != main_~tmp~7; 56#L869true ~methAndRunningLastTime~0 := 0; 32#L777true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 38#L788-1true [2021-10-28 23:55:35,272 INFO L793 eck$LassoCheckResult]: Loop: 38#L788-1true assume !false; 72#L65true assume test_~splverifierCounter~0 < 4; 47#L66true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 9#L74true assume !(0 != test_~tmp~0); 41#L74-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 57#L84true assume !(0 != test_~tmp___0~0); 62#L84-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 58#L94true assume 0 != test_~tmp___2~0; 45#L100-2true assume !(0 != ~pumpRunning~0); 42#L143true assume !(0 != ~systemActive~0); 40#L150true havoc __utac_acc__Specification2_spec__2_#t~ret76, __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 46#L734-1true __utac_acc__Specification2_spec__2_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret76;havoc __utac_acc__Specification2_spec__2_#t~ret76; 70#L788true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 38#L788-1true [2021-10-28 23:55:35,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:55:35,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:35,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174336640] [2021-10-28 23:55:35,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:35,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:35,668 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:35,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:35,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:35,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2383754, now seen corresponding path program 1 times [2021-10-28 23:55:35,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:35,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698962346] [2021-10-28 23:55:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:35,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:35,930 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:35,952 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:35,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:35,953 INFO L85 PathProgramCache]: Analyzing trace with hash 835680260, now seen corresponding path program 1 times [2021-10-28 23:55:35,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:35,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006646020] [2021-10-28 23:55:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:35,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:55:36,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:36,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006646020] [2021-10-28 23:55:36,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006646020] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:55:36,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:55:36,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:55:36,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720308635] [2021-10-28 23:55:36,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:36,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:55:36,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:55:36,390 INFO L87 Difference]: Start difference. First operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-10-28 23:55:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:36,581 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2021-10-28 23:55:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:55:36,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 95 transitions. [2021-10-28 23:55:36,587 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-28 23:55:36,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 63 states and 88 transitions. [2021-10-28 23:55:36,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2021-10-28 23:55:36,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2021-10-28 23:55:36,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 88 transitions. [2021-10-28 23:55:36,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:36,596 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-10-28 23:55:36,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 88 transitions. [2021-10-28 23:55:36,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-28 23:55:36,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 62 states have internal predecessors, (88), 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) [2021-10-28 23:55:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2021-10-28 23:55:36,624 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-10-28 23:55:36,624 INFO L587 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-10-28 23:55:36,624 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:55:36,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2021-10-28 23:55:36,626 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-28 23:55:36,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:36,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:36,628 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:36,628 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:36,628 INFO L791 eck$LassoCheckResult]: Stem: 219#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 216#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 179#L677 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; 180#L685 main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 186#L893 assume 0 != main_~tmp~7; 187#L869 ~methAndRunningLastTime~0 := 0; 201#L777 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 189#L788-1 [2021-10-28 23:55:36,628 INFO L793 eck$LassoCheckResult]: Loop: 189#L788-1 assume !false; 205#L65 assume test_~splverifierCounter~0 < 4; 212#L66 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 169#L74 assume !(0 != test_~tmp~0); 171#L74-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 207#L84 assume !(0 != test_~tmp___0~0); 199#L84-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 217#L94 assume 0 != test_~tmp___2~0; 210#L100-2 assume !(0 != ~pumpRunning~0); 208#L143 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 166#L175 assume !(0 != ~pumpRunning~0); 167#L150 havoc __utac_acc__Specification2_spec__2_#t~ret76, __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 206#L734-1 __utac_acc__Specification2_spec__2_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret76;havoc __utac_acc__Specification2_spec__2_#t~ret76; 211#L788 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 189#L788-1 [2021-10-28 23:55:36,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:36,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:55:36,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:36,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051879510] [2021-10-28 23:55:36,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:36,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:36,675 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:36,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:36,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash 53367905, now seen corresponding path program 1 times [2021-10-28 23:55:36,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:36,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132854258] [2021-10-28 23:55:36,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:36,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:36,789 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:36,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:36,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:36,796 INFO L85 PathProgramCache]: Analyzing trace with hash 115755815, now seen corresponding path program 1 times [2021-10-28 23:55:36,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:36,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536561052] [2021-10-28 23:55:36,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:36,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:36,837 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:36,897 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:56:38,422 WARN L207 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:57:35,934 WARN L207 SmtUtils]: Spent 28.08 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:57:36,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:57:36 BoogieIcfgContainer [2021-10-28 23:57:36,064 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:57:36,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:57:36,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:57:36,065 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:57:36,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:55:35" (3/4) ... [2021-10-28 23:57:36,068 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:57:36,112 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:57:36,112 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:57:36,113 INFO L168 Benchmark]: Toolchain (without parser) took 122611.01 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 56.7 MB in the beginning and 70.0 MB in the end (delta: -13.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:36,113 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory is still 73.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:57:36,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.02 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 56.5 MB in the beginning and 87.9 MB in the end (delta: -31.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:36,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.74 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 84.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:36,115 INFO L168 Benchmark]: Boogie Preprocessor took 74.60 ms. Allocated memory is still 119.5 MB. Free memory was 84.9 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:36,115 INFO L168 Benchmark]: RCFGBuilder took 886.81 ms. Allocated memory is still 119.5 MB. Free memory was 82.8 MB in the beginning and 45.6 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:36,116 INFO L168 Benchmark]: BuchiAutomizer took 120929.86 ms. Allocated memory is still 119.5 MB. Free memory was 45.6 MB in the beginning and 72.0 MB in the end (delta: -26.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:36,116 INFO L168 Benchmark]: Witness Printer took 47.60 ms. Allocated memory is still 119.5 MB. Free memory was 72.0 MB in the beginning and 70.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:36,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory is still 73.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 583.02 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 56.5 MB in the beginning and 87.9 MB in the end (delta: -31.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.74 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 84.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.60 ms. Allocated memory is still 119.5 MB. Free memory was 84.9 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 886.81 ms. Allocated memory is still 119.5 MB. Free memory was 82.8 MB in the beginning and 45.6 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 120929.86 ms. Allocated memory is still 119.5 MB. Free memory was 45.6 MB in the beginning and 72.0 MB in the end (delta: -26.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * Witness Printer took 47.60 ms. Allocated memory is still 119.5 MB. Free memory was 72.0 MB in the beginning and 70.0 MB in the end (delta: 2.0 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 63 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 120.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 120.5s. 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 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 63 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 90 SDtfs, 358 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 64]: 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=2735, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@256968ae=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@766c5d45=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f5bff55=0, NULL=1, NULL=2711, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ec02367=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6018e76b=0, NULL=0, NULL=0, tmp___1=0, NULL=2719, NULL=2721, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2596f6=0, cleanupTimeShifts=4, tmp=0, NULL=2727, NULL=2729, NULL=2730, NULL=2722, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=2712, retValue_acc=0, NULL=2725, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=2714, NULL=0, NULL=0, NULL=0, NULL=2737, \result=1, head=0, pumpRunning=0, NULL=2726, NULL=2717, \result=0, NULL=2732, NULL=2738, NULL=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cb7bdae=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3202c97=0, NULL=2728, retValue_acc=1, NULL=2720, NULL=2731, NULL=0, NULL=2716, NULL=0, NULL=2736, tmp___2=56, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=2715, NULL=2718, NULL=2723, tmp=0, head=0, NULL=2734, NULL=2713, NULL=2724, NULL=0, NULL=2733, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L135] int pumpRunning = 0; [L136] int systemActive = 1; [L455] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L691] int waterLevel = 1; [L692] int methaneLevelCritical = 0; [L771] int methAndRunningLastTime ; [L810] int cleanupTimeShifts = 4; [L884] int retValue_acc ; [L885] int tmp ; [L681] int retValue_acc ; [L684] retValue_acc = 1 [L685] return (retValue_acc); [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L776] methAndRunningLastTime = 0 [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L143] COND FALSE !(\read(pumpRunning)) [L150] COND TRUE \read(systemActive) [L172] int tmp ; [L175] COND FALSE !(\read(pumpRunning)) [L781] int tmp ; [L782] int tmp___0 ; [L730] int retValue_acc ; [L733] retValue_acc = methaneLevelCritical [L734] return (retValue_acc); [L786] tmp = isMethaneLevelCritical() [L788] COND FALSE !(\read(tmp)) [L804] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:57:36,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79b0d27-f365-40a6-9cb8-5a4b2da7cac6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...