./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be --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 bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:04:56,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:04:56,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:04:56,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:04:56,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:04:56,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:04:56,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:04:56,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:04:56,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:04:56,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:04:56,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:04:56,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:04:56,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:04:56,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:04:56,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:04:56,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:04:56,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:04:56,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:04:56,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:04:56,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:04:56,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:04:56,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:04:56,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:04:56,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:04:56,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:04:56,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:04:56,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:04:56,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:04:56,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:04:56,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:04:56,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:04:56,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:04:56,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:04:56,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:04:56,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:04:56,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:04:56,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:04:56,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:04:56,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:04:56,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:04:56,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:04:56,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:04:56,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:04:56,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:04:56,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:04:56,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:04:56,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:04:56,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:04:56,584 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:04:56,584 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:04:56,584 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:04:56,584 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:04:56,585 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:04:56,585 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:04:56,586 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:04:56,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:04:56,586 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:04:56,586 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:04:56,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:04:56,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:04:56,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:04:56,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:04:56,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:04:56,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:04:56,587 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:04:56,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:04:56,588 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:04:56,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:04:56,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:04:56,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:04:56,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:04:56,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:04:56,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:04:56,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:04:56,592 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:04:56,592 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2021-10-21 20:04:56,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:04:56,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:04:56,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:04:56,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:04:56,907 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:04:56,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2021-10-21 20:04:56,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/data/6a8d99abe/0fed0bd4375b4c3187573d8f59b52631/FLAG021e9f08e [2021-10-21 20:04:57,522 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:04:57,522 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2021-10-21 20:04:57,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/data/6a8d99abe/0fed0bd4375b4c3187573d8f59b52631/FLAG021e9f08e [2021-10-21 20:04:57,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/data/6a8d99abe/0fed0bd4375b4c3187573d8f59b52631 [2021-10-21 20:04:57,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:04:57,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:04:57,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:04:57,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:04:57,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:04:57,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:04:57" (1/1) ... [2021-10-21 20:04:57,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17426f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:57, skipping insertion in model container [2021-10-21 20:04:57,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:04:57" (1/1) ... [2021-10-21 20:04:57,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:04:57,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:04:58,161 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2021-10-21 20:04:58,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:04:58,265 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:04:58,305 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2021-10-21 20:04:58,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:04:58,433 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:04:58,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58 WrapperNode [2021-10-21 20:04:58,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:04:58,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:04:58,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:04:58,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:04:58,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:04:58,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:04:58,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:04:58,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:04:58,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:04:58,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:04:58,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:04:58,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:04:58,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (1/1) ... [2021-10-21 20:04:58,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:04:58,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:58,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:04:58,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:04:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:04:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:04:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:04:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:05:00,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:05:00,042 INFO L299 CfgBuilder]: Removed 354 assume(true) statements. [2021-10-21 20:05:00,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:05:00 BoogieIcfgContainer [2021-10-21 20:05:00,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:05:00,046 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:05:00,046 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:05:00,050 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:05:00,051 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:05:00,051 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:04:57" (1/3) ... [2021-10-21 20:05:00,052 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9bff463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:05:00, skipping insertion in model container [2021-10-21 20:05:00,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:05:00,053 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:58" (2/3) ... [2021-10-21 20:05:00,053 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9bff463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:05:00, skipping insertion in model container [2021-10-21 20:05:00,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:05:00,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:05:00" (3/3) ... [2021-10-21 20:05:00,055 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2021-10-21 20:05:00,098 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:05:00,098 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:05:00,098 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:05:00,098 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:05:00,099 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:05:00,099 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:05:00,099 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:05:00,099 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:05:00,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:05:00,154 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-21 20:05:00,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:05:00,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:05:00,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:00,163 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:00,163 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:05:00,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:05:00,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-21 20:05:00,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:05:00,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:05:00,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:00,186 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:00,197 INFO L791 eck$LassoCheckResult]: Stem: 221#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(80, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(117, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(109, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(112, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(110, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 3 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(32, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 147#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 87#L661true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 88#L669true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 78#L142true assume 0 != main_~tmp~0; 214#L113true ~methAndRunningLastTime~0 := 0; 46#L173true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 101#L184-1true [2021-10-21 20:05:00,198 INFO L793 eck$LassoCheckResult]: Loop: 101#L184-1true assume !false; 132#L326true assume test_~splverifierCounter~0 < 4; 124#L327true test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 16#L335true assume !(0 != test_~tmp~2); 89#L335-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 100#L345true assume !(0 != test_~tmp___0~1); 65#L345-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 140#L355true assume 0 != test_~tmp___2~0; 122#L361-1true assume !(0 != ~pumpRunning~0); 68#L391true assume !(0 != ~systemActive~0); 216#L398true havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 161#L254-5true __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 67#L184true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 101#L184-1true [2021-10-21 20:05:00,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:00,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 20:05:00,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:00,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751116570] [2021-10-21 20:05:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:00,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:00,553 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:00,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:00,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:00,751 INFO L82 PathProgramCache]: Analyzing trace with hash 17744979, now seen corresponding path program 1 times [2021-10-21 20:05:00,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:00,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088319339] [2021-10-21 20:05:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:00,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:00,764 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:00,782 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:00,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:00,784 INFO L82 PathProgramCache]: Analyzing trace with hash 851041485, now seen corresponding path program 1 times [2021-10-21 20:05:00,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:00,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405841981] [2021-10-21 20:05:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:00,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:05:00,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:05:00,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405841981] [2021-10-21 20:05:00,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405841981] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:05:00,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:05:00,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:05:00,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910326157] [2021-10-21 20:05:01,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:05:01,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:05:01,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:05:01,206 INFO L87 Difference]: Start difference. First operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:05:01,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:05:01,521 INFO L93 Difference]: Finished difference Result 502 states and 733 transitions. [2021-10-21 20:05:01,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:05:01,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 502 states and 733 transitions. [2021-10-21 20:05:01,537 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 327 [2021-10-21 20:05:01,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 502 states to 481 states and 712 transitions. [2021-10-21 20:05:01,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2021-10-21 20:05:01,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2021-10-21 20:05:01,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 712 transitions. [2021-10-21 20:05:01,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:05:01,564 INFO L681 BuchiCegarLoop]: Abstraction has 481 states and 712 transitions. [2021-10-21 20:05:01,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 712 transitions. [2021-10-21 20:05:01,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 265. [2021-10-21 20:05:01,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 265 states have (on average 1.4754716981132074) internal successors, (391), 264 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:05:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 391 transitions. [2021-10-21 20:05:01,626 INFO L704 BuchiCegarLoop]: Abstraction has 265 states and 391 transitions. [2021-10-21 20:05:01,627 INFO L587 BuchiCegarLoop]: Abstraction has 265 states and 391 transitions. [2021-10-21 20:05:01,627 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:05:01,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 391 transitions. [2021-10-21 20:05:01,631 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2021-10-21 20:05:01,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:05:01,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:05:01,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:01,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:01,633 INFO L791 eck$LassoCheckResult]: Stem: 968#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(80, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(117, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(109, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(112, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(110, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 3 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(32, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 937#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 880#L661 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 881#L669 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 872#L142 assume 0 != main_~tmp~0; 873#L113 ~methAndRunningLastTime~0 := 0; 830#L173 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 766#L184-1 [2021-10-21 20:05:01,633 INFO L793 eck$LassoCheckResult]: Loop: 766#L184-1 assume !false; 896#L326 assume test_~splverifierCounter~0 < 4; 921#L327 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 776#L335 assume !(0 != test_~tmp~2); 778#L335-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 882#L345 assume !(0 != test_~tmp___0~1); 794#L345-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 861#L355 assume 0 != test_~tmp___2~0; 919#L361-1 assume !(0 != ~pumpRunning~0); 775#L391 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret26, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 856#L475 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret25, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 857#L449-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 901#L423-3 assume !(0 == ~pumpRunning~0); 772#L398 havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 948#L254-5 __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 862#L184 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 766#L184-1 [2021-10-21 20:05:01,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:01,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 20:05:01,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:01,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479297607] [2021-10-21 20:05:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:01,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:01,688 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:01,806 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:01,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1227870023, now seen corresponding path program 1 times [2021-10-21 20:05:01,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:01,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985858286] [2021-10-21 20:05:01,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:01,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:01,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:05:01,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:05:01,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985858286] [2021-10-21 20:05:01,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985858286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:05:01,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:05:01,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:05:01,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129090503] [2021-10-21 20:05:01,842 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:05:01,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:05:01,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:05:01,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:05:01,844 INFO L87 Difference]: Start difference. First operand 265 states and 391 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:05:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:05:01,966 INFO L93 Difference]: Finished difference Result 262 states and 365 transitions. [2021-10-21 20:05:01,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:05:01,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 365 transitions. [2021-10-21 20:05:01,969 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2021-10-21 20:05:01,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 262 states and 365 transitions. [2021-10-21 20:05:01,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2021-10-21 20:05:01,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 262 [2021-10-21 20:05:01,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 262 states and 365 transitions. [2021-10-21 20:05:01,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:05:01,973 INFO L681 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2021-10-21 20:05:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states and 365 transitions. [2021-10-21 20:05:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2021-10-21 20:05:01,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 262 states have (on average 1.3931297709923665) internal successors, (365), 261 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:05:01,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 365 transitions. [2021-10-21 20:05:01,996 INFO L704 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2021-10-21 20:05:01,996 INFO L587 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2021-10-21 20:05:01,996 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:05:01,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 262 states and 365 transitions. [2021-10-21 20:05:01,998 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2021-10-21 20:05:01,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:05:01,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:05:02,001 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:02,001 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:02,001 INFO L791 eck$LassoCheckResult]: Stem: 1470#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(80, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(117, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(109, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(112, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(110, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 3 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(32, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1388#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1389#L661 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1465#L669 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1458#L142 assume 0 != main_~tmp~0; 1459#L113 ~methAndRunningLastTime~0 := 0; 1408#L173 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1409#L184-1 [2021-10-21 20:05:02,002 INFO L793 eck$LassoCheckResult]: Loop: 1409#L184-1 assume !false; 1535#L326 assume test_~splverifierCounter~0 < 4; 1534#L327 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 1533#L335 assume !(0 != test_~tmp~2); 1466#L335-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1467#L345 assume !(0 != test_~tmp___0~1); 1348#L345-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1365#L355 assume 0 != test_~tmp___2~0; 1313#L361-1 assume !(0 != ~pumpRunning~0); 1314#L391 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret26, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1438#L475 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret25, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1439#L449-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1455#L423-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret45, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 1367#L294-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 1368#L299-3 isHighWaterLevel_#t~ret45 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret45;havoc isHighWaterLevel_#t~ret45; 1413#L594-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1414#L594-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1369#L600-3 processEnvironment__wrappee__highWaterSensor_#t~ret24 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret24;havoc processEnvironment__wrappee__highWaterSensor_#t~ret24; 1370#L427-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1342#L398 havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 1541#L254-5 __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 1539#L184 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 1409#L184-1 [2021-10-21 20:05:02,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:02,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 20:05:02,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:02,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924586788] [2021-10-21 20:05:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:02,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:02,062 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:02,141 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:02,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1200754989, now seen corresponding path program 1 times [2021-10-21 20:05:02,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:02,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83391155] [2021-10-21 20:05:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:02,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:02,154 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:02,163 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:02,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:02,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2067939431, now seen corresponding path program 1 times [2021-10-21 20:05:02,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:02,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249398718] [2021-10-21 20:05:02,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:02,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:02,225 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:02,288 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:59,369 WARN L207 SmtUtils]: Spent 56.80 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 20:06:57,953 WARN L207 SmtUtils]: Spent 28.63 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 20:06:58,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:06:58 BoogieIcfgContainer [2021-10-21 20:06:58,084 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:06:58,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:06:58,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:06:58,085 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:06:58,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:05:00" (3/4) ... [2021-10-21 20:06:58,088 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:06:58,133 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:06:58,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:06:58,135 INFO L168 Benchmark]: Toolchain (without parser) took 120323.79 ms. Allocated memory was 117.4 MB in the beginning and 205.5 MB in the end (delta: 88.1 MB). Free memory was 73.7 MB in the beginning and 97.2 MB in the end (delta: -23.5 MB). Peak memory consumption was 62.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,135 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 117.4 MB. Free memory is still 91.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:06:58,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.61 ms. Allocated memory is still 117.4 MB. Free memory was 73.6 MB in the beginning and 82.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.15 ms. Allocated memory is still 117.4 MB. Free memory was 82.7 MB in the beginning and 77.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,137 INFO L168 Benchmark]: Boogie Preprocessor took 113.29 ms. Allocated memory is still 117.4 MB. Free memory was 77.1 MB in the beginning and 73.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,137 INFO L168 Benchmark]: RCFGBuilder took 1371.72 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 73.3 MB in the beginning and 107.5 MB in the end (delta: -34.2 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,138 INFO L168 Benchmark]: BuchiAutomizer took 118037.95 ms. Allocated memory was 157.3 MB in the beginning and 205.5 MB in the end (delta: 48.2 MB). Free memory was 107.5 MB in the beginning and 100.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 106.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,138 INFO L168 Benchmark]: Witness Printer took 49.36 ms. Allocated memory is still 205.5 MB. Free memory was 100.2 MB in the beginning and 97.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 117.4 MB. Free memory is still 91.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 622.61 ms. Allocated memory is still 117.4 MB. Free memory was 73.6 MB in the beginning and 82.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.15 ms. Allocated memory is still 117.4 MB. Free memory was 82.7 MB in the beginning and 77.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 113.29 ms. Allocated memory is still 117.4 MB. Free memory was 77.1 MB in the beginning and 73.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1371.72 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 73.3 MB in the beginning and 107.5 MB in the end (delta: -34.2 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 118037.95 ms. Allocated memory was 157.3 MB in the beginning and 205.5 MB in the end (delta: 48.2 MB). Free memory was 107.5 MB in the beginning and 100.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 106.8 MB. Max. memory is 16.1 GB. * Witness Printer took 49.36 ms. Allocated memory is still 205.5 MB. Free memory was 100.2 MB in the beginning and 97.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 262 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 117.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 117.2s. 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 71.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 216 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 265 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 573 SDtfs, 1795 SDslu, 1253 SDs, 0 SdLazy, 81 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 249.9ms 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: 325]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3506} State at position 1 is {NULL=0, NULL=3506, NULL=3508, NULL=0, NULL=3524, NULL=3531, methaneLevelCritical=0, NULL=3528, retValue_acc=1, tmp=0, NULL=0, NULL=3516, NULL=0, retValue_acc=0, tmp___1=0, NULL=0, NULL=3511, cleanupTimeShifts=4, NULL=3517, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f836735=0, NULL=3509, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3387bc36=0, waterLevel=1, NULL=0, NULL=0, NULL=3529, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7791206=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c24cb1b=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b341ae3=54, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3518, NULL=0, tmp=1, NULL=0, NULL=3534, tmp___0=0, methAndRunningLastTime=0, NULL=3519, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bc23512=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21b4a77d=0, tmp=0, NULL=3512, NULL=3532, tmp=0, NULL=3533, retValue_acc=0, retValue_acc=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e6b22c0=0, NULL=3514, tmp___0=0, NULL=0, NULL=0, NULL=3525, NULL=0, NULL=0, tmp=0, NULL=3507, NULL=0, systemActive=1, NULL=3526, NULL=0, \result=0, NULL=3520, \result=0, NULL=0, NULL=3510, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fb4ec10=0, NULL=0, tmp___0=0, NULL=3515, NULL=3527, NULL=3523, tmp___2=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11b6eee3=0, splverifierCounter=0, NULL=0, \result=0, NULL=3522, NULL=3530, NULL=3521, tmp=0, NULL=3513, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15854635=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L167] int methAndRunningLastTime ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L384] int pumpRunning = 0; [L385] int systemActive = 1; [L843] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L133] int retValue_acc ; [L134] int tmp ; [L665] int retValue_acc ; [L668] retValue_acc = 1 [L669] return (retValue_acc); [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L172] methAndRunningLastTime = 0 [L316] int splverifierCounter ; [L317] int tmp ; [L318] int tmp___0 ; [L319] int tmp___1 ; [L320] int tmp___2 ; [L323] splverifierCounter = 0 Loop: [L325] COND TRUE 1 [L327] COND TRUE splverifierCounter < 4 [L333] tmp = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp)) [L343] tmp___0 = __VERIFIER_nondet_int() [L345] COND FALSE !(\read(tmp___0)) [L353] tmp___2 = __VERIFIER_nondet_int() [L355] COND TRUE \read(tmp___2) [L391] COND FALSE !(\read(pumpRunning)) [L398] COND TRUE \read(systemActive) [L472] int tmp ; [L475] COND FALSE !(\read(pumpRunning)) [L446] int tmp ; [L449] COND FALSE !(\read(pumpRunning)) [L420] int tmp ; [L423] COND TRUE ! pumpRunning [L586] int retValue_acc ; [L587] int tmp ; [L588] int tmp___0 ; [L291] int retValue_acc ; [L294] COND TRUE waterLevel < 2 [L295] retValue_acc = 1 [L296] return (retValue_acc); [L592] tmp = isHighWaterSensorDry() [L594] COND TRUE \read(tmp) [L595] tmp___0 = 0 [L599] retValue_acc = tmp___0 [L600] return (retValue_acc); [L425] tmp = isHighWaterLevel() [L427] COND FALSE !(\read(tmp)) [L177] int tmp ; [L178] int tmp___0 ; [L250] int retValue_acc ; [L253] retValue_acc = methaneLevelCritical [L254] return (retValue_acc); [L182] tmp = isMethaneLevelCritical() [L184] COND FALSE !(\read(tmp)) [L200] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:06:58,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22af795e-3eea-45b4-880b-bdaade836804/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...