./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product07.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_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/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_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/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_ce221569-7a2e-4132-9eea-9fad60e02070/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 699ded97cbb1126ff33cf78f7c5253f33e10fc954d477377647b1ae04749f3fb ....................................................................................................................................................................................................................................................................................................................................................................................... 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 20:18:34,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:18:34,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:18:34,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:18:34,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:18:34,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:18:34,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:18:34,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:18:34,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:18:34,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:18:34,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:18:34,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:18:34,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:18:34,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:18:34,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:18:34,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:18:34,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:18:34,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:18:34,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:18:34,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:18:34,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:18:34,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:18:34,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:18:34,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:18:34,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:18:34,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:18:34,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:18:34,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:18:34,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:18:34,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:18:34,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:18:34,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:18:34,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:18:34,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:18:34,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:18:34,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:18:34,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:18:34,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:18:34,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:18:34,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:18:34,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:18:34,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:18:34,746 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:18:34,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:18:34,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:18:34,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:18:34,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:18:34,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:18:34,748 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:18:34,748 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:18:34,748 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:18:34,748 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:18:34,749 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:18:34,749 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:18:34,749 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:18:34,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:18:34,749 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:18:34,750 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:18:34,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:18:34,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:18:34,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:18:34,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:18:34,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:18:34,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:18:34,751 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:18:34,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:18:34,751 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:18:34,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:18:34,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:18:34,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:18:34,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:18:34,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:18:34,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:18:34,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:18:34,754 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:18:34,754 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_ce221569-7a2e-4132-9eea-9fad60e02070/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 699ded97cbb1126ff33cf78f7c5253f33e10fc954d477377647b1ae04749f3fb [2021-10-21 20:18:35,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:18:35,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:18:35,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:18:35,059 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:18:35,060 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:18:35,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2021-10-21 20:18:35,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/data/c122b550c/0034227695a84428b2beb46662f45b46/FLAG1f652c198 [2021-10-21 20:18:35,593 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:18:35,594 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2021-10-21 20:18:35,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/data/c122b550c/0034227695a84428b2beb46662f45b46/FLAG1f652c198 [2021-10-21 20:18:35,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/data/c122b550c/0034227695a84428b2beb46662f45b46 [2021-10-21 20:18:35,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:18:35,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:18:35,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:18:35,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:18:35,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:18:35,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:18:35" (1/1) ... [2021-10-21 20:18:35,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3f551f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:35, skipping insertion in model container [2021-10-21 20:18:35,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:18:35" (1/1) ... [2021-10-21 20:18:35,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:18:36,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:18:36,210 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_ce221569-7a2e-4132-9eea-9fad60e02070/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c[3211,3224] [2021-10-21 20:18:36,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:18:36,302 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:18:36,323 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_ce221569-7a2e-4132-9eea-9fad60e02070/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c[3211,3224] [2021-10-21 20:18:36,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:18:36,389 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:18:36,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36 WrapperNode [2021-10-21 20:18:36,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:18:36,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:18:36,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:18:36,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:18:36,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:18:36,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:18:36,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:18:36,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:18:36,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:18:36,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:18:36,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:18:36,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:18:36,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (1/1) ... [2021-10-21 20:18:36,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:18:36,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:18:36,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:18:36,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:18:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:18:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:18:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:18:36,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:18:37,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:18:37,437 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-10-21 20:18:37,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:18:37 BoogieIcfgContainer [2021-10-21 20:18:37,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:18:37,440 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:18:37,440 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:18:37,443 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:18:37,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:18:37,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:18:35" (1/3) ... [2021-10-21 20:18:37,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e1330ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:18:37, skipping insertion in model container [2021-10-21 20:18:37,446 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:18:37,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:18:36" (2/3) ... [2021-10-21 20:18:37,446 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e1330ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:18:37, skipping insertion in model container [2021-10-21 20:18:37,446 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:18:37,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:18:37" (3/3) ... [2021-10-21 20:18:37,448 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product07.cil.c [2021-10-21 20:18:37,491 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:18:37,491 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:18:37,491 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:18:37,491 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:18:37,491 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:18:37,491 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:18:37,492 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:18:37,492 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:18:37,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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 20:18:37,530 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-21 20:18:37,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:18:37,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:18:37,538 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:18:37,538 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:18:37,538 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:18:37,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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 20:18:37,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-21 20:18:37,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:18:37,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:18:37,545 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:18:37,545 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:18:37,550 INFO L791 eck$LassoCheckResult]: Stem: 54#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 39#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 5#L419true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 26#L427true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 14#L514true assume 0 != main_~tmp~3; 6#L491true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, 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; 23#L146-1true [2021-10-21 20:18:37,551 INFO L793 eck$LassoCheckResult]: Loop: 23#L146-1true assume !false; 55#L338true assume test_~splverifierCounter~0 < 4; 63#L339true test_~tmp~2 := test_#t~nondet37;havoc test_#t~nondet37; 49#L347true assume !(0 != test_~tmp~2); 56#L347-1true test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 57#L357true assume !(0 != test_~tmp___0~1); 36#L357-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 16#L367true assume 0 != test_~tmp___2~0; 21#L373-1true assume !(0 != ~pumpRunning~0); 34#L185true assume !(0 != ~systemActive~0); 31#L192true havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 50#L99-1true __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 24#L146true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 23#L146-1true [2021-10-21 20:18:37,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:18:37,557 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 20:18:37,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:18:37,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669635488] [2021-10-21 20:18:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:18:37,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:18:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:37,836 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:18:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:38,018 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:18:38,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:18:38,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310517, now seen corresponding path program 1 times [2021-10-21 20:18:38,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:18:38,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140662804] [2021-10-21 20:18:38,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:18:38,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:18:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:38,046 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:18:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:38,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:18:38,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:18:38,078 INFO L82 PathProgramCache]: Analyzing trace with hash 40968421, now seen corresponding path program 1 times [2021-10-21 20:18:38,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:18:38,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353634701] [2021-10-21 20:18:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:18:38,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:18:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:18:38,279 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 20:18:38,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:18:38,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353634701] [2021-10-21 20:18:38,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353634701] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:18:38,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:18:38,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:18:38,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35841401] [2021-10-21 20:18:38,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:18:38,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:18:38,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:18:38,400 INFO L87 Difference]: Start difference. First operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:18:38,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:18:38,681 INFO L93 Difference]: Finished difference Result 180 states and 246 transitions. [2021-10-21 20:18:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:18:38,683 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 246 transitions. [2021-10-21 20:18:38,695 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 113 [2021-10-21 20:18:38,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 159 states and 225 transitions. [2021-10-21 20:18:38,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2021-10-21 20:18:38,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2021-10-21 20:18:38,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 225 transitions. [2021-10-21 20:18:38,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:18:38,712 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 225 transitions. [2021-10-21 20:18:38,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 225 transitions. [2021-10-21 20:18:38,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 102. [2021-10-21 20:18:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 102 states have (on average 1.411764705882353) internal successors, (144), 101 states have internal predecessors, (144), 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 20:18:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2021-10-21 20:18:38,759 INFO L704 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2021-10-21 20:18:38,760 INFO L587 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2021-10-21 20:18:38,760 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:18:38,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2021-10-21 20:18:38,763 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2021-10-21 20:18:38,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:18:38,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:18:38,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:18:38,764 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:18:38,764 INFO L791 eck$LassoCheckResult]: Stem: 323#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 312#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 268#L419 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 269#L427 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 280#L514 assume 0 != main_~tmp~3; 270#L491 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, 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; 271#L146-1 [2021-10-21 20:18:38,764 INFO L793 eck$LassoCheckResult]: Loop: 271#L146-1 assume !false; 295#L338 assume test_~splverifierCounter~0 < 4; 324#L339 test_~tmp~2 := test_#t~nondet37;havoc test_#t~nondet37; 319#L347 assume !(0 != test_~tmp~2); 273#L347-1 test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 325#L357 assume !(0 != test_~tmp___0~1); 267#L357-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 281#L367 assume 0 != test_~tmp___2~0; 282#L373-1 assume !(0 != ~pumpRunning~0); 294#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 299#L217 assume !(0 != ~pumpRunning~0); 292#L192 havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 307#L99-1 __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 296#L146 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 271#L146-1 [2021-10-21 20:18:38,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:18:38,765 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 20:18:38,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:18:38,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147120453] [2021-10-21 20:18:38,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:18:38,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:18:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:38,834 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:18:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:38,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:18:38,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:18:38,907 INFO L82 PathProgramCache]: Analyzing trace with hash -353546757, now seen corresponding path program 1 times [2021-10-21 20:18:38,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:18:38,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905118493] [2021-10-21 20:18:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:18:38,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:18:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:38,912 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:18:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:38,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:18:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:18:38,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492769, now seen corresponding path program 1 times [2021-10-21 20:18:38,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:18:38,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392163400] [2021-10-21 20:18:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:18:38,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:18:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:39,044 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:18:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:18:39,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:28,963 WARN L207 SmtUtils]: Spent 49.75 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 20:20:20,299 WARN L207 SmtUtils]: Spent 25.18 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 20:20:20,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:20:20 BoogieIcfgContainer [2021-10-21 20:20:20,478 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:20:20,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:20:20,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:20:20,487 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:20:20,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:18:37" (3/4) ... [2021-10-21 20:20:20,490 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:20:20,561 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:20:20,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:20:20,564 INFO L168 Benchmark]: Toolchain (without parser) took 104617.50 ms. Allocated memory was 117.4 MB in the beginning and 155.2 MB in the end (delta: 37.7 MB). Free memory was 77.4 MB in the beginning and 38.4 MB in the end (delta: 39.0 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:20,579 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 117.4 MB. Free memory is still 94.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:20:20,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.71 ms. Allocated memory is still 117.4 MB. Free memory was 77.2 MB in the beginning and 82.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:20,581 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.21 ms. Allocated memory is still 117.4 MB. Free memory was 82.8 MB in the beginning and 79.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:20,583 INFO L168 Benchmark]: Boogie Preprocessor took 67.84 ms. Allocated memory is still 117.4 MB. Free memory was 79.8 MB in the beginning and 77.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:20,583 INFO L168 Benchmark]: RCFGBuilder took 915.49 ms. Allocated memory was 117.4 MB in the beginning and 155.2 MB in the end (delta: 37.7 MB). Free memory was 77.7 MB in the beginning and 127.1 MB in the end (delta: -49.5 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:20,585 INFO L168 Benchmark]: BuchiAutomizer took 103038.46 ms. Allocated memory is still 155.2 MB. Free memory was 127.1 MB in the beginning and 40.5 MB in the end (delta: 86.6 MB). Peak memory consumption was 92.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:20,593 INFO L168 Benchmark]: Witness Printer took 82.33 ms. Allocated memory is still 155.2 MB. Free memory was 40.5 MB in the beginning and 38.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:20,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 117.4 MB. Free memory is still 94.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 444.71 ms. Allocated memory is still 117.4 MB. Free memory was 77.2 MB in the beginning and 82.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.21 ms. Allocated memory is still 117.4 MB. Free memory was 82.8 MB in the beginning and 79.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.84 ms. Allocated memory is still 117.4 MB. Free memory was 79.8 MB in the beginning and 77.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 915.49 ms. Allocated memory was 117.4 MB in the beginning and 155.2 MB in the end (delta: 37.7 MB). Free memory was 77.7 MB in the beginning and 127.1 MB in the end (delta: -49.5 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 103038.46 ms. Allocated memory is still 155.2 MB. Free memory was 127.1 MB in the beginning and 40.5 MB in the end (delta: 86.6 MB). Peak memory consumption was 92.2 MB. Max. memory is 16.1 GB. * Witness Printer took 82.33 ms. Allocated memory is still 155.2 MB. Free memory was 40.5 MB in the beginning and 38.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 102 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 102.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 102.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 32.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 57 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 102 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 89 SDtfs, 334 SDslu, 497 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 158.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 337]: 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, retValue_acc=0, NULL=0, NULL=0, NULL=31639, NULL=0, NULL=1, NULL=31642, retValue_acc=0, NULL=0, NULL=31624, NULL=31641, NULL=31616, methaneLevelCritical=0, NULL=31632, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5025b5fa=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32a21dcb=0, tmp___0=0, NULL=31631, NULL=31618, cleanupTimeShifts=4, NULL=31627, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6284478e=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b5e2daf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ce7ab48=0, NULL=31637, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cb158cc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e4e579f=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27980ab6=0, NULL=31626, NULL=0, NULL=31629, \result=1, head=0, pumpRunning=0, \result=0, tmp=1, NULL=31623, NULL=0, NULL=31617, NULL=0, NULL=0, NULL=0, tmp=0, retValue_acc=1, NULL=31615, NULL=31634, NULL=0, NULL=0, NULL=31622, NULL=0, NULL=0, NULL=31630, tmp___2=76, NULL=0, NULL=31636, tmp___0=0, NULL=31633, splverifierCounter=0, NULL=0, \result=0, NULL=31640, NULL=31625, NULL=31621, tmp=0, head=0, NULL=0, NULL=0, NULL=31619, NULL=0, NULL=31628, NULL=31635, NULL=0, NULL=31638, NULL=31620} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L178] int pumpRunning = 0; [L179] int systemActive = 1; [L432] int cleanupTimeShifts = 4; [L697] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L505] int retValue_acc ; [L506] int tmp ; [L423] int retValue_acc ; [L426] retValue_acc = 1 [L427] return (retValue_acc); [L512] tmp = valid_product() [L514] COND TRUE \read(tmp) [L328] int splverifierCounter ; [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L332] int tmp___2 ; [L335] splverifierCounter = 0 Loop: [L337] COND TRUE 1 [L339] COND TRUE splverifierCounter < 4 [L345] tmp = __VERIFIER_nondet_int() [L347] COND FALSE !(\read(tmp)) [L355] tmp___0 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___0)) [L365] tmp___2 = __VERIFIER_nondet_int() [L367] COND TRUE \read(tmp___2) [L185] COND FALSE !(\read(pumpRunning)) [L192] COND TRUE \read(systemActive) [L214] int tmp ; [L217] COND FALSE !(\read(pumpRunning)) [L139] int tmp ; [L140] int tmp___0 ; [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L144] tmp = isMethaneLevelCritical() [L146] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:20:20,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce221569-7a2e-4132-9eea-9fad60e02070/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...