./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer --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 a799124555890ca53ef8c243a58e7f790fa6b6f5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-30 01:31:16,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:31:16,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:31:16,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:31:16,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:31:16,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:31:16,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:31:16,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:31:16,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:31:16,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:31:16,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:31:16,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:31:16,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:31:16,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:31:16,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:31:16,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:31:16,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:31:16,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:31:16,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:31:16,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:31:16,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:31:16,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:31:16,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:31:16,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:31:16,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:31:16,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:31:16,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:31:16,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:31:16,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:31:16,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:31:16,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:31:16,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:31:16,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:31:16,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:31:16,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:31:16,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:31:16,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:31:16,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:31:16,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:31:16,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:31:16,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:31:16,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:31:16,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:31:16,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:31:16,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:31:16,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:31:16,459 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:31:16,460 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:31:16,460 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:31:16,460 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:31:16,461 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:31:16,461 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:31:16,461 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:31:16,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:31:16,462 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:31:16,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:31:16,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:31:16,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:31:16,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:31:16,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:31:16,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:31:16,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:31:16,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:31:16,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:31:16,465 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:31:16,466 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:31:16,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:31:16,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:31:16,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:31:16,467 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:31:16,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:31:16,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:31:16,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:31:16,468 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:31:16,470 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:31:16,470 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-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a799124555890ca53ef8c243a58e7f790fa6b6f5 [2020-11-30 01:31:16,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:31:16,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:31:16,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:31:16,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:31:16,840 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:31:16,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2020-11-30 01:31:16,989 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/data/9e5060108/4cd78bc1e68f44268973d9b451648391/FLAG8fc18e969 [2020-11-30 01:31:17,616 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:31:17,617 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2020-11-30 01:31:17,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/data/9e5060108/4cd78bc1e68f44268973d9b451648391/FLAG8fc18e969 [2020-11-30 01:31:17,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/data/9e5060108/4cd78bc1e68f44268973d9b451648391 [2020-11-30 01:31:17,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:31:17,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:31:17,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:31:17,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:31:17,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:31:17,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:31:17" (1/1) ... [2020-11-30 01:31:17,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d640d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:17, skipping insertion in model container [2020-11-30 01:31:17,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:31:17" (1/1) ... [2020-11-30 01:31:17,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:31:17,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:31:18,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:31:18,401 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:31:18,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:31:18,594 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:31:18,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18 WrapperNode [2020-11-30 01:31:18,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:31:18,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:31:18,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:31:18,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:31:18,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:31:18,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:31:18,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:31:18,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:31:18,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... [2020-11-30 01:31:18,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:31:18,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:31:18,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:31:18,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:31:18,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:31:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:31:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:31:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:31:19,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:31:21,565 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:31:21,565 INFO L298 CfgBuilder]: Removed 912 assume(true) statements. [2020-11-30 01:31:21,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:31:21 BoogieIcfgContainer [2020-11-30 01:31:21,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:31:21,570 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:31:21,570 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:31:21,574 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:31:21,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:31:21,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:31:17" (1/3) ... [2020-11-30 01:31:21,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19d5565a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:31:21, skipping insertion in model container [2020-11-30 01:31:21,580 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:31:21,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:18" (2/3) ... [2020-11-30 01:31:21,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19d5565a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:31:21, skipping insertion in model container [2020-11-30 01:31:21,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:31:21,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:31:21" (3/3) ... [2020-11-30 01:31:21,583 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-11-30 01:31:21,639 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:31:21,639 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:31:21,639 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:31:21,640 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:31:21,640 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:31:21,640 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:31:21,640 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:31:21,640 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:31:21,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 476 states. [2020-11-30 01:31:21,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2020-11-30 01:31:21,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:31:21,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:31:21,802 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:21,802 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:21,802 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:31:21,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 476 states. [2020-11-30 01:31:21,818 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2020-11-30 01:31:21,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:31:21,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:31:21,827 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:21,827 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:21,842 INFO L794 eck$LassoCheckResult]: Stem: 353#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(38);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~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 291#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 284#L971true havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 372#L946true select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 374#L946-1true select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 376#L946-2true select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 378#L946-3true select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 362#L946-4true select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 363#L946-5true select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 91#L963true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 370#L979true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 250#L498true assume 0 != main_~tmp~3; 417#L471true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 371#L1001-1true [2020-11-30 01:31:21,843 INFO L796 eck$LassoCheckResult]: Loop: 371#L1001-1true assume !false; 9#L533true assume test_~splverifierCounter~0 < 4; 71#L534true test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 245#L542true assume !(0 != test_~tmp~4); 248#L542-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 138#L552true assume !(0 != test_~tmp___0~0); 141#L552-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 197#L562true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 136#L574true assume !(0 != test_~tmp___1~0); 140#L574-1true assume !(0 != ~pumpRunning~0); 294#L615true assume !(0 != ~systemActive~0); 61#L622true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 17#L1072-10true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 22#L995true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 371#L1001-1true [2020-11-30 01:31:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:21,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 1 times [2020-11-30 01:31:21,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:21,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410882382] [2020-11-30 01:31:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:22,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:22,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:22,524 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:31:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:22,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1299784635, now seen corresponding path program 1 times [2020-11-30 01:31:22,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:22,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661119714] [2020-11-30 01:31:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:22,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:22,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:22,558 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:31:22,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:22,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1167266427, now seen corresponding path program 1 times [2020-11-30 01:31:22,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:22,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792424777] [2020-11-30 01:31:22,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:22,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:31:22,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792424777] [2020-11-30 01:31:22,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:22,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:31:22,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268211553] [2020-11-30 01:31:22,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:22,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:31:22,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:31:22,940 INFO L87 Difference]: Start difference. First operand 476 states. Second operand 7 states. [2020-11-30 01:31:23,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:23,693 INFO L93 Difference]: Finished difference Result 1451 states and 2244 transitions. [2020-11-30 01:31:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:31:23,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1451 states and 2244 transitions. [2020-11-30 01:31:23,718 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 958 [2020-11-30 01:31:23,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1451 states to 1423 states and 2216 transitions. [2020-11-30 01:31:23,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1423 [2020-11-30 01:31:23,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1423 [2020-11-30 01:31:23,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1423 states and 2216 transitions. [2020-11-30 01:31:23,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:31:23,768 INFO L691 BuchiCegarLoop]: Abstraction has 1423 states and 2216 transitions. [2020-11-30 01:31:23,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states and 2216 transitions. [2020-11-30 01:31:23,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 515. [2020-11-30 01:31:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-11-30 01:31:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 795 transitions. [2020-11-30 01:31:23,882 INFO L714 BuchiCegarLoop]: Abstraction has 515 states and 795 transitions. [2020-11-30 01:31:23,883 INFO L594 BuchiCegarLoop]: Abstraction has 515 states and 795 transitions. [2020-11-30 01:31:23,883 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:31:23,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 515 states and 795 transitions. [2020-11-30 01:31:23,887 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 344 [2020-11-30 01:31:23,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:31:23,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:31:23,890 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:23,891 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:23,891 INFO L794 eck$LassoCheckResult]: Stem: 2375#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(38);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~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2338#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 2330#L971 havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2331#L946 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2393#L946-1 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2394#L946-2 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2395#L946-3 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2387#L946-4 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2388#L946-5 select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 2100#L963 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 2101#L979 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 2311#L498 assume 0 != main_~tmp~3; 2312#L471 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1983#L1001-1 [2020-11-30 01:31:23,893 INFO L796 eck$LassoCheckResult]: Loop: 1983#L1001-1 assume !false; 1959#L533 assume test_~splverifierCounter~0 < 4; 1960#L534 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 2070#L542 assume !(0 != test_~tmp~4); 2206#L542-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 2171#L552 assume !(0 != test_~tmp___0~0); 2172#L552-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 2178#L562 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 2167#L574 assume !(0 != test_~tmp___1~0); 2169#L574-1 assume !(0 != ~pumpRunning~0); 2176#L615 assume 0 != ~systemActive~0; 2342#L758 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 2347#L715-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 2245#L672-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 1953#L622 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1974#L1072-10 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 1975#L995 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 1983#L1001-1 [2020-11-30 01:31:23,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:23,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 2 times [2020-11-30 01:31:23,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:23,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740094075] [2020-11-30 01:31:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:24,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:24,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:24,160 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:31:24,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:24,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1493625380, now seen corresponding path program 1 times [2020-11-30 01:31:24,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:24,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516774796] [2020-11-30 01:31:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:24,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:24,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:24,202 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:31:24,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:24,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1931444270, now seen corresponding path program 1 times [2020-11-30 01:31:24,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:24,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178962623] [2020-11-30 01:31:24,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:24,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:31:24,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178962623] [2020-11-30 01:31:24,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:24,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:31:24,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804050481] [2020-11-30 01:31:24,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:24,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:31:24,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:31:24,505 INFO L87 Difference]: Start difference. First operand 515 states and 795 transitions. cyclomatic complexity: 283 Second operand 5 states. [2020-11-30 01:31:25,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:25,336 INFO L93 Difference]: Finished difference Result 1966 states and 3082 transitions. [2020-11-30 01:31:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:31:25,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1966 states and 3082 transitions. [2020-11-30 01:31:25,358 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1343 [2020-11-30 01:31:25,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1966 states to 1966 states and 3082 transitions. [2020-11-30 01:31:25,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1966 [2020-11-30 01:31:25,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1966 [2020-11-30 01:31:25,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1966 states and 3082 transitions. [2020-11-30 01:31:25,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:31:25,414 INFO L691 BuchiCegarLoop]: Abstraction has 1966 states and 3082 transitions. [2020-11-30 01:31:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states and 3082 transitions. [2020-11-30 01:31:25,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1017. [2020-11-30 01:31:25,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-11-30 01:31:25,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1569 transitions. [2020-11-30 01:31:25,455 INFO L714 BuchiCegarLoop]: Abstraction has 1017 states and 1569 transitions. [2020-11-30 01:31:25,455 INFO L594 BuchiCegarLoop]: Abstraction has 1017 states and 1569 transitions. [2020-11-30 01:31:25,456 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:31:25,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1017 states and 1569 transitions. [2020-11-30 01:31:25,464 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 688 [2020-11-30 01:31:25,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:31:25,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:31:25,466 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:25,466 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:25,466 INFO L794 eck$LassoCheckResult]: Stem: 4969#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(38);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~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 4902#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 4889#L971 havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4890#L946 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4999#L946-1 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 5000#L946-2 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 5001#L946-3 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4986#L946-4 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4987#L946-5 select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 4605#L963 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 4606#L979 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 4844#L498 assume 0 != main_~tmp~3; 4845#L471 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 5032#L1001-1 [2020-11-30 01:31:25,466 INFO L796 eck$LassoCheckResult]: Loop: 5032#L1001-1 assume !false; 5306#L533 assume test_~splverifierCounter~0 < 4; 5307#L534 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 5449#L542 assume !(0 != test_~tmp~4); 5447#L542-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 5446#L552 assume !(0 != test_~tmp___0~0); 5445#L552-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 5377#L562 assume 0 != test_~tmp___2~0; 4680#L563 assume 0 != ~__SELECTED_FEATURE_startCommand~0;~systemActive~0 := 1; 4681#L574-1 assume !(0 != ~pumpRunning~0); 4687#L615 assume 0 != ~systemActive~0; 4907#L758 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 4914#L715-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 4975#L672-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 5314#L622 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 5313#L1072-10 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 5312#L995 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 5311#L1104 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 5309#L1001 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 5032#L1001-1 [2020-11-30 01:31:25,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:25,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 3 times [2020-11-30 01:31:25,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:25,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739883280] [2020-11-30 01:31:25,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:25,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:25,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:25,623 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:31:25,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:25,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1754430911, now seen corresponding path program 1 times [2020-11-30 01:31:25,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:25,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890113790] [2020-11-30 01:31:25,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:25,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:25,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:25,651 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:31:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:25,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1917272629, now seen corresponding path program 1 times [2020-11-30 01:31:25,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:25,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518774919] [2020-11-30 01:31:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:25,699 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:31:25,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:31:25,781 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:31:25,948 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-30 01:33:29,686 WARN L193 SmtUtils]: Spent 2.06 m on a formula simplification. DAG size of input: 553 DAG size of output: 495 [2020-11-30 01:34:33,147 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification that was a NOOP. DAG size: 444 [2020-11-30 01:34:33,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:34:33 BoogieIcfgContainer [2020-11-30 01:34:33,428 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:34:33,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:34:33,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:34:33,429 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:34:33,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:31:21" (3/4) ... [2020-11-30 01:34:33,432 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:34:33,488 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5fcaa0dc-2b6e-474f-a6e8-c10972b9f969/bin/uautomizer/witness.graphml [2020-11-30 01:34:33,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:34:33,490 INFO L168 Benchmark]: Toolchain (without parser) took 195582.86 ms. Allocated memory was 94.4 MB in the beginning and 174.1 MB in the end (delta: 79.7 MB). Free memory was 61.2 MB in the beginning and 121.1 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:33,490 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 71.3 MB. Free memory is still 32.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:34:33,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.87 ms. Allocated memory is still 94.4 MB. Free memory was 60.8 MB in the beginning and 57.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:33,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 216.65 ms. Allocated memory is still 94.4 MB. Free memory was 57.0 MB in the beginning and 46.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:33,492 INFO L168 Benchmark]: Boogie Preprocessor took 141.90 ms. Allocated memory is still 94.4 MB. Free memory was 46.1 MB in the beginning and 38.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:33,492 INFO L168 Benchmark]: RCFGBuilder took 2608.55 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 38.5 MB in the beginning and 68.0 MB in the end (delta: -29.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:33,493 INFO L168 Benchmark]: BuchiAutomizer took 191857.93 ms. Allocated memory was 119.5 MB in the beginning and 174.1 MB in the end (delta: 54.5 MB). Free memory was 67.1 MB in the beginning and 124.2 MB in the end (delta: -57.1 MB). Peak memory consumption was 90.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:33,493 INFO L168 Benchmark]: Witness Printer took 60.53 ms. Allocated memory is still 174.1 MB. Free memory was 124.2 MB in the beginning and 121.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:33,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 71.3 MB. Free memory is still 32.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.87 ms. Allocated memory is still 94.4 MB. Free memory was 60.8 MB in the beginning and 57.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 216.65 ms. Allocated memory is still 94.4 MB. Free memory was 57.0 MB in the beginning and 46.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 141.90 ms. Allocated memory is still 94.4 MB. Free memory was 46.1 MB in the beginning and 38.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2608.55 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 38.5 MB in the beginning and 68.0 MB in the end (delta: -29.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 191857.93 ms. Allocated memory was 119.5 MB in the beginning and 174.1 MB in the end (delta: 54.5 MB). Free memory was 67.1 MB in the beginning and 124.2 MB in the end (delta: -57.1 MB). Peak memory consumption was 90.5 MB. Max. memory is 16.1 GB. * Witness Printer took 60.53 ms. Allocated memory is still 174.1 MB. Free memory was 124.2 MB in the beginning and 121.1 MB in the end (delta: 3.1 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 1017 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 191.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 189.6s. Construction of modules took 1.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1857 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 1017 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1814 SDtfs, 7273 SDslu, 8753 SDs, 0 SdLazy, 437 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 532]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10782} State at position 1 is {retValue_acc=1, NULL=0, NULL=38233, NULL=0, NULL=10782, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3faa102e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@230e87d=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39d98997=0, NULL=0, NULL=0, methaneLevelCritical=0, NULL=0, tmp=0, NULL=0, NULL=38244, tmp___1=0, NULL=0, NULL=10786, NULL=10793, cleanupTimeShifts=4, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63f5ace1=0, NULL=0, waterLevel=1, NULL=0, NULL=0, __SELECTED_FEATURE_methaneAlarm=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=10789, tmp=1, NULL=0, NULL=0, NULL=0, NULL=38229, __SELECTED_FEATURE_stopCommand=0, NULL=38235, NULL=10783, NULL=38242, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2753be38=0, NULL=38245, NULL=38231, head=0, NULL=0, NULL=0, tmp=0, NULL=10784, NULL=0, NULL=0, choice=37, \result=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@300851a0=0, __SELECTED_FEATURE_base=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6812a6d=0, retValue_acc=0, NULL=10790, NULL=0, NULL=38243, NULL=0, NULL=0, NULL=38240, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ec65ba7=0, __GUIDSL_ROOT_PRODUCTION=1, NULL=0, NULL=0, NULL=10785, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71e032f2=0, NULL=10788, NULL=38230, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35305206=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59110f26=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21274f80=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5447ea3a=0, tmp___0=1, NULL=38234, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51e2f03d=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=38236, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75766bb0=0, __SELECTED_FEATURE_lowWaterSensor=0, NULL=0, NULL=0, NULL=0, NULL=10791, \result=0, retValue_acc=37, __SELECTED_FEATURE_highWaterSensor=0, NULL=38241, NULL=38232, retValue_acc=1, NULL=38238, __SELECTED_FEATURE_methaneQuery=0, NULL=10792, tmp___2=39, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=10787, NULL=38237, tmp___1=0, __SELECTED_FEATURE_startCommand=37, NULL=38239} - 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; [L408] int cleanupTimeShifts = 4; [L512] int __SELECTED_FEATURE_base ; [L513] int __SELECTED_FEATURE_highWaterSensor ; [L514] int __SELECTED_FEATURE_lowWaterSensor ; [L515] int __SELECTED_FEATURE_methaneQuery ; [L516] int __SELECTED_FEATURE_methaneAlarm ; [L517] int __SELECTED_FEATURE_stopCommand ; [L518] int __SELECTED_FEATURE_startCommand ; [L519] int __GUIDSL_ROOT_PRODUCTION ; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L1029] int waterLevel = 1; [L1030] int methaneLevelCritical = 0; [L489] int retValue_acc ; [L490] int tmp ; [L970] __GUIDSL_ROOT_PRODUCTION = 1 [L955] __SELECTED_FEATURE_base = 1 [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L956] __SELECTED_FEATURE_highWaterSensor = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L957] __SELECTED_FEATURE_lowWaterSensor = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L958] __SELECTED_FEATURE_methaneQuery = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L959] __SELECTED_FEATURE_methaneAlarm = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L960] __SELECTED_FEATURE_stopCommand = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L961] __SELECTED_FEATURE_startCommand = select_one() [L975] int retValue_acc ; [L978] retValue_acc = __SELECTED_FEATURE_base [L979] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L523] int splverifierCounter ; [L524] int tmp ; [L525] int tmp___0 ; [L526] int tmp___1 ; [L527] int tmp___2 ; [L530] splverifierCounter = 0 Loop: [L532] COND TRUE 1 [L534] COND TRUE splverifierCounter < 4 [L540] tmp = __VERIFIER_nondet_int() [L542] COND FALSE !(\read(tmp)) [L550] tmp___0 = __VERIFIER_nondet_int() [L552] COND FALSE !(\read(tmp___0)) [L560] tmp___2 = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp___2) [L563] COND TRUE \read(__SELECTED_FEATURE_startCommand) [L934] systemActive = 1 [L615] COND FALSE !(\read(pumpRunning)) [L622] COND TRUE \read(systemActive) [L758] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L715] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L672] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L987] int tmp ; [L988] int tmp___0 ; [L989] int tmp___1 ; [L1068] int retValue_acc ; [L1071] retValue_acc = methaneLevelCritical [L1072] return (retValue_acc); [L993] tmp = isMethaneLevelCritical() [L995] COND FALSE !(\read(tmp)) [L1100] int retValue_acc ; [L1103] retValue_acc = waterLevel [L1104] return (retValue_acc); [L999] tmp___0 = getWaterLevel() [L1001] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...