./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.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_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/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 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 23:57:41,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:57:41,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:57:41,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:57:41,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:57:41,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:57:41,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:57:41,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:57:41,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:57:41,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:57:41,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:57:41,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:57:41,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:57:41,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:57:41,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:57:41,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:57:41,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:57:41,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:57:41,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:57:41,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:57:41,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:57:41,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:57:41,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:57:41,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:57:41,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:57:41,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:57:41,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:57:41,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:57:41,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:57:41,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:57:41,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:57:41,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:57:41,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:57:41,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:57:41,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:57:41,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:57:41,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:57:41,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:57:41,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:57:41,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:57:41,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:57:41,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:57:41,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:57:41,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:57:41,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:57:41,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:57:41,552 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:57:41,552 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:57:41,552 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:57:41,552 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:57:41,553 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:57:41,553 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:57:41,554 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:57:41,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:57:41,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:57:41,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:57:41,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:57:41,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:57:41,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:57:41,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:57:41,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:57:41,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:57:41,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:57:41,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:57:41,558 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:57:41,559 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:57:41,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:57:41,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:57:41,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:57:41,560 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:57:41,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:57:41,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:57:41,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:57:41,561 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:57:41,562 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:57:41,562 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_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 [2020-11-29 23:57:41,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:57:41,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:57:41,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:57:41,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:57:41,909 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:57:41,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2020-11-29 23:57:42,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/data/0a46b452e/bf1453758ed748cb8d5dd78d0a5b0c96/FLAG48058f9b1 [2020-11-29 23:57:42,590 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:57:42,590 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2020-11-29 23:57:42,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/data/0a46b452e/bf1453758ed748cb8d5dd78d0a5b0c96/FLAG48058f9b1 [2020-11-29 23:57:42,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/data/0a46b452e/bf1453758ed748cb8d5dd78d0a5b0c96 [2020-11-29 23:57:42,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:57:42,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:57:42,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:42,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:57:42,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:57:42,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681dd5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:42, skipping insertion in model container [2020-11-29 23:57:42,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:42" (1/1) ... [2020-11-29 23:57:42,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:57:42,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:57:43,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:43,320 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:57:43,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:43,457 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:57:43,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43 WrapperNode [2020-11-29 23:57:43,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:43,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:43,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:57:43,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:57:43,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:43,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:57:43,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:57:43,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:57:43,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... [2020-11-29 23:57:43,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:57:43,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:57:43,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:57:43,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:57:43,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/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 [2020-11-29 23:57:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:57:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:57:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:57:43,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:57:44,620 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:57:44,620 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-29 23:57:44,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:44 BoogieIcfgContainer [2020-11-29 23:57:44,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:57:44,623 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:57:44,623 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:57:44,630 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:57:44,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:44,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:57:42" (1/3) ... [2020-11-29 23:57:44,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6790ad8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:57:44, skipping insertion in model container [2020-11-29 23:57:44,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:44,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:43" (2/3) ... [2020-11-29 23:57:44,634 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6790ad8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:57:44, skipping insertion in model container [2020-11-29 23:57:44,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:44,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:44" (3/3) ... [2020-11-29 23:57:44,636 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-11-29 23:57:44,695 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:57:44,695 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:57:44,695 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:57:44,695 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:57:44,696 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:57:44,696 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:57:44,696 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:57:44,696 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:57:44,711 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-29 23:57:44,736 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 23:57:44,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:44,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:44,755 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:57:44,755 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:44,755 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:57:44,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-29 23:57:44,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 23:57:44,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:44,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:44,770 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:57:44,770 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:44,775 INFO L794 eck$LassoCheckResult]: Stem: 47#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 55#L813true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 77#L821true main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 16#L402true assume 0 != main_~tmp~4; 5#L376true 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; 40#L125-1true [2020-11-29 23:57:44,776 INFO L796 eck$LassoCheckResult]: Loop: 40#L125-1true assume !false; 3#L58true assume test_~splverifierCounter~0 < 4; 36#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 66#L67true assume !(0 != test_~tmp~0); 63#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 49#L77true assume !(0 != test_~tmp___0~0); 48#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 22#L87true assume 0 != test_~tmp___2~0; 56#L93-1true assume !(0 != ~pumpRunning~0); 10#L157true assume !(0 != ~systemActive~0); 33#L164true havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 68#L901true __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; 43#L125true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 40#L125-1true [2020-11-29 23:57:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:44,786 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 23:57:44,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:44,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003359735] [2020-11-29 23:57:44,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:45,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:45,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:45,263 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:45,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:45,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941107, now seen corresponding path program 1 times [2020-11-29 23:57:45,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:45,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658696851] [2020-11-29 23:57:45,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:45,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:45,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:45,302 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:45,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:45,304 INFO L82 PathProgramCache]: Analyzing trace with hash 41337831, now seen corresponding path program 1 times [2020-11-29 23:57:45,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:45,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589603988] [2020-11-29 23:57:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:57:45,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589603988] [2020-11-29 23:57:45,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:45,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:57:45,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041696020] [2020-11-29 23:57:45,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:57:45,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:57:45,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:57:45,614 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 6 states. [2020-11-29 23:57:46,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:46,004 INFO L93 Difference]: Finished difference Result 198 states and 276 transitions. [2020-11-29 23:57:46,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:57:46,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 276 transitions. [2020-11-29 23:57:46,024 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 125 [2020-11-29 23:57:46,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 177 states and 255 transitions. [2020-11-29 23:57:46,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-11-29 23:57:46,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-11-29 23:57:46,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 255 transitions. [2020-11-29 23:57:46,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:57:46,051 INFO L691 BuchiCegarLoop]: Abstraction has 177 states and 255 transitions. [2020-11-29 23:57:46,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 255 transitions. [2020-11-29 23:57:46,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 111. [2020-11-29 23:57:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-29 23:57:46,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2020-11-29 23:57:46,101 INFO L714 BuchiCegarLoop]: Abstraction has 111 states and 159 transitions. [2020-11-29 23:57:46,102 INFO L594 BuchiCegarLoop]: Abstraction has 111 states and 159 transitions. [2020-11-29 23:57:46,102 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:57:46,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 159 transitions. [2020-11-29 23:57:46,106 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 78 [2020-11-29 23:57:46,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:46,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:46,112 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:57:46,112 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:46,112 INFO L794 eck$LassoCheckResult]: Stem: 353#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 316#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 317#L813 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 357#L821 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 321#L402 assume 0 != main_~tmp~4; 301#L376 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; 302#L125-1 [2020-11-29 23:57:46,113 INFO L796 eck$LassoCheckResult]: Loop: 302#L125-1 assume !false; 298#L58 assume test_~splverifierCounter~0 < 4; 299#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 340#L67 assume !(0 != test_~tmp~0); 310#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 354#L77 assume !(0 != test_~tmp___0~0); 342#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 326#L87 assume 0 != test_~tmp___2~0; 327#L93-1 assume !(0 != ~pumpRunning~0); 311#L157 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 312#L189 assume !(0 == ~pumpRunning~0); 325#L164 havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 335#L901 __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; 350#L125 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 302#L125-1 [2020-11-29 23:57:46,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:46,116 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 23:57:46,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:46,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209494607] [2020-11-29 23:57:46,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:46,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:46,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:46,285 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:46,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:46,285 INFO L82 PathProgramCache]: Analyzing trace with hash -353177347, now seen corresponding path program 1 times [2020-11-29 23:57:46,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:46,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735435751] [2020-11-29 23:57:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:57:46,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735435751] [2020-11-29 23:57:46,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:46,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:57:46,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609193683] [2020-11-29 23:57:46,316 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:57:46,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:57:46,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:57:46,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:57:46,317 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. cyclomatic complexity: 51 Second operand 3 states. [2020-11-29 23:57:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:46,438 INFO L93 Difference]: Finished difference Result 150 states and 202 transitions. [2020-11-29 23:57:46,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:57:46,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 202 transitions. [2020-11-29 23:57:46,445 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2020-11-29 23:57:46,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 150 states and 202 transitions. [2020-11-29 23:57:46,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 150 [2020-11-29 23:57:46,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150 [2020-11-29 23:57:46,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 202 transitions. [2020-11-29 23:57:46,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:57:46,450 INFO L691 BuchiCegarLoop]: Abstraction has 150 states and 202 transitions. [2020-11-29 23:57:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 202 transitions. [2020-11-29 23:57:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-11-29 23:57:46,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-29 23:57:46,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 202 transitions. [2020-11-29 23:57:46,473 INFO L714 BuchiCegarLoop]: Abstraction has 150 states and 202 transitions. [2020-11-29 23:57:46,473 INFO L594 BuchiCegarLoop]: Abstraction has 150 states and 202 transitions. [2020-11-29 23:57:46,474 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:57:46,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 202 transitions. [2020-11-29 23:57:46,476 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2020-11-29 23:57:46,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:46,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:46,477 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:57:46,477 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, 1] [2020-11-29 23:57:46,477 INFO L794 eck$LassoCheckResult]: Stem: 626#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 583#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 584#L813 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 632#L821 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 589#L402 assume 0 != main_~tmp~4; 570#L376 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; 571#L125-1 [2020-11-29 23:57:46,477 INFO L796 eck$LassoCheckResult]: Loop: 571#L125-1 assume !false; 688#L58 assume test_~splverifierCounter~0 < 4; 615#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 616#L67 assume !(0 != test_~tmp~0); 574#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 638#L77 assume !(0 != test_~tmp___0~0); 627#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 628#L87 assume 0 != test_~tmp___2~0; 693#L93-1 assume !(0 != ~pumpRunning~0); 577#L157 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 578#L189 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 644#L909 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 590#L914 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 591#L291 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~2 := 0; 649#L291-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 625#L297 processEnvironment_#t~ret13 := isHighWaterLevel_#res;processEnvironment_~tmp~2 := processEnvironment_#t~ret13;havoc processEnvironment_#t~ret13; 592#L193 assume !(0 != processEnvironment_~tmp~2); 594#L164 havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 606#L901 __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; 640#L125 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 571#L125-1 [2020-11-29 23:57:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:46,478 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 23:57:46,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:46,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033968151] [2020-11-29 23:57:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:46,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:46,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:46,661 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:46,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:46,661 INFO L82 PathProgramCache]: Analyzing trace with hash -539551511, now seen corresponding path program 1 times [2020-11-29 23:57:46,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:46,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096774460] [2020-11-29 23:57:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:46,678 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:46,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:46,690 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:46,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:46,691 INFO L82 PathProgramCache]: Analyzing trace with hash -524839537, now seen corresponding path program 1 times [2020-11-29 23:57:46,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:46,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336764383] [2020-11-29 23:57:46,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:46,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:46,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:46,828 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:47,001 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 23:59:19,471 WARN L193 SmtUtils]: Spent 1.54 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:00:23,580 WARN L193 SmtUtils]: Spent 1.07 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:00:23,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:00:23 BoogieIcfgContainer [2020-11-30 00:00:23,738 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:00:23,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:00:23,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:00:23,739 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:00:23,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:44" (3/4) ... [2020-11-30 00:00:23,742 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:00:23,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cbe151d9-1e9c-4dc2-9b24-0b2f2fb02748/bin/uautomizer/witness.graphml [2020-11-30 00:00:23,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:00:23,797 INFO L168 Benchmark]: Toolchain (without parser) took 160923.14 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 75.9 MB in the beginning and 77.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:23,798 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 79.7 MB. Free memory was 49.6 MB in the beginning and 49.5 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:00:23,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 571.71 ms. Allocated memory is still 109.1 MB. Free memory was 75.7 MB in the beginning and 75.1 MB in the end (delta: 544.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:23,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.22 ms. Allocated memory is still 109.1 MB. Free memory was 75.1 MB in the beginning and 72.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:23,800 INFO L168 Benchmark]: Boogie Preprocessor took 81.08 ms. Allocated memory is still 109.1 MB. Free memory was 72.5 MB in the beginning and 70.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:23,801 INFO L168 Benchmark]: RCFGBuilder took 1000.51 ms. Allocated memory is still 109.1 MB. Free memory was 69.9 MB in the beginning and 58.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:23,802 INFO L168 Benchmark]: BuchiAutomizer took 159115.86 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 58.6 MB in the beginning and 79.3 MB in the end (delta: -20.7 MB). Peak memory consumption was 63.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:23,802 INFO L168 Benchmark]: Witness Printer took 56.87 ms. Allocated memory is still 134.2 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:23,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 79.7 MB. Free memory was 49.6 MB in the beginning and 49.5 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 571.71 ms. Allocated memory is still 109.1 MB. Free memory was 75.7 MB in the beginning and 75.1 MB in the end (delta: 544.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.22 ms. Allocated memory is still 109.1 MB. Free memory was 75.1 MB in the beginning and 72.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.08 ms. Allocated memory is still 109.1 MB. Free memory was 72.5 MB in the beginning and 70.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1000.51 ms. Allocated memory is still 109.1 MB. Free memory was 69.9 MB in the beginning and 58.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 159115.86 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 58.6 MB in the beginning and 79.3 MB in the end (delta: -20.7 MB). Peak memory consumption was 63.2 MB. Max. memory is 16.1 GB. * Witness Printer took 56.87 ms. Allocated memory is still 134.2 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 150 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 159.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 158.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 66 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 150 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 214 SDtfs, 476 SDslu, 590 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=41417, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7705bd86=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6256344f=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f682a01=0, NULL=1, retValue_acc=0, NULL=0, NULL=0, NULL=41423, NULL=41427, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20a8a318=0, NULL=41418, NULL=41419, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ad2824c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b3abacd=0, tmp___0=0, NULL=0, NULL=41431, retValue_acc=0, tmp___1=0, NULL=0, NULL=0, NULL=41413, NULL=17905, tmp___0=0, cleanupTimeShifts=4, tmp=0, NULL=41425, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, \result=0, NULL=0, tmp___0=0, NULL=0, NULL=41421, NULL=0, NULL=0, NULL=0, NULL=41435, \result=1, NULL=41430, head=0, pumpRunning=0, \result=0, NULL=41428, NULL=41432, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ffadc51=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7772f0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=41420, NULL=41412, tmp=1, NULL=0, retValue_acc=1, tmp=1, NULL=0, NULL=2, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dee82c6=0, tmp___2=64, retValue_acc=1, NULL=41416, NULL=41429, splverifierCounter=0, NULL=0, NULL=41436, NULL=41433, NULL=41426, tmp=0, head=0, NULL=0, NULL=0, NULL=41414, NULL=0, NULL=0, NULL=41434, NULL=0, NULL=17904, NULL=41424, NULL=41422, NULL=41415} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L150] int pumpRunning = 0; [L151] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L585] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L826] int waterLevel = 1; [L827] int methaneLevelCritical = 0; [L393] int retValue_acc ; [L394] int tmp ; [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L157] COND FALSE !(\read(pumpRunning)) [L164] COND TRUE \read(systemActive) [L186] int tmp ; [L189] COND TRUE ! pumpRunning [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L906] int retValue_acc ; [L909] COND TRUE waterLevel < 2 [L910] retValue_acc = 1 [L911] return (retValue_acc); [L289] tmp = isHighWaterSensorDry() [L291] COND TRUE \read(tmp) [L292] tmp___0 = 0 [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); [L191] tmp = isHighWaterLevel() [L193] COND FALSE !(\read(tmp)) [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...