./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product11.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_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/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_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/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_361a3297-dcf5-439a-8012-773f344323a9/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 99857c88a5e40ad3ad2fa6a4e628ec2c8e519c722ca50ab478c6824b27ce30a6 ........................................................................................................................................................................................................................................................................................................................................................................................ 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 20:08:34,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:08:34,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:08:34,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:08:34,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:08:34,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:08:34,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:08:34,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:08:34,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:08:34,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:08:34,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:08:34,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:08:34,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:08:34,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:08:34,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:08:34,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:08:34,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:08:34,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:08:34,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:08:34,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:08:34,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:08:34,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:08:34,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:08:34,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:08:34,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:08:34,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:08:34,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:08:34,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:08:34,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:08:34,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:08:34,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:08:34,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:08:34,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:08:34,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:08:34,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:08:34,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:08:34,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:08:34,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:08:34,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:08:34,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:08:34,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:08:34,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:08:34,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:08:34,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:08:34,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:08:34,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:08:34,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:08:34,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:08:34,633 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:08:34,634 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:08:34,634 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:08:34,634 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:08:34,635 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:08:34,636 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:08:34,636 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:08:34,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:08:34,636 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:08:34,637 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:08:34,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:08:34,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:08:34,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:08:34,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:08:34,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:08:34,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:08:34,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:08:34,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:08:34,639 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:08:34,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:08:34,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:08:34,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:08:34,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:08:34,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:08:34,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:08:34,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:08:34,644 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:08:34,645 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_361a3297-dcf5-439a-8012-773f344323a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99857c88a5e40ad3ad2fa6a4e628ec2c8e519c722ca50ab478c6824b27ce30a6 [2021-10-21 20:08:34,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:08:34,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:08:34,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:08:34,942 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:08:34,942 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:08:34,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c [2021-10-21 20:08:35,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/data/e410f0f11/8f27f657147f4ad299268a099f1faaff/FLAG5c3153b35 [2021-10-21 20:08:35,497 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:08:35,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c [2021-10-21 20:08:35,520 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/data/e410f0f11/8f27f657147f4ad299268a099f1faaff/FLAG5c3153b35 [2021-10-21 20:08:35,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/data/e410f0f11/8f27f657147f4ad299268a099f1faaff [2021-10-21 20:08:35,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:08:35,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:08:35,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:08:35,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:08:35,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:08:35,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:08:35" (1/1) ... [2021-10-21 20:08:35,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c377a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:35, skipping insertion in model container [2021-10-21 20:08:35,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:08:35" (1/1) ... [2021-10-21 20:08:35,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:08:35,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:08:36,242 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_361a3297-dcf5-439a-8012-773f344323a9/sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c[14638,14651] [2021-10-21 20:08:36,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:08:36,280 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:08:36,337 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_361a3297-dcf5-439a-8012-773f344323a9/sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c[14638,14651] [2021-10-21 20:08:36,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:08:36,377 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:08:36,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36 WrapperNode [2021-10-21 20:08:36,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:08:36,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:08:36,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:08:36,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:08:36,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:08:36,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:08:36,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:08:36,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:08:36,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:08:36,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:08:36,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:08:36,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:08:36,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (1/1) ... [2021-10-21 20:08:36,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:08:36,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:36,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:08:36,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:08:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:08:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:08:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:08:36,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:08:37,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:08:37,376 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-10-21 20:08:37,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:08:37 BoogieIcfgContainer [2021-10-21 20:08:37,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:08:37,379 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:08:37,379 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:08:37,384 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:08:37,384 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:08:37,385 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:08:35" (1/3) ... [2021-10-21 20:08:37,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e65302c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:08:37, skipping insertion in model container [2021-10-21 20:08:37,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:08:37,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:36" (2/3) ... [2021-10-21 20:08:37,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e65302c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:08:37, skipping insertion in model container [2021-10-21 20:08:37,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:08:37,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:08:37" (3/3) ... [2021-10-21 20:08:37,389 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product11.cil.c [2021-10-21 20:08:37,442 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:08:37,442 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:08:37,442 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:08:37,442 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:08:37,442 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:08:37,442 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:08:37,443 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:08:37,443 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:08:37,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.5423728813559323) internal successors, (91), 59 states have internal predecessors, (91), 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 20:08:37,491 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-10-21 20:08:37,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:08:37,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:08:37,498 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:37,498 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:37,499 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:08:37,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.5423728813559323) internal successors, (91), 59 states have internal predecessors, (91), 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 20:08:37,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-10-21 20:08:37,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:08:37,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:08:37,507 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:37,508 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:37,512 INFO L791 eck$LassoCheckResult]: Stem: 44#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 35#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 54#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 21#L83true main_#t~ret77 := valid_product_#res;main_~tmp~6 := main_#t~ret77;havoc main_#t~ret77; 59#L886true assume 0 != main_~tmp~6; 11#L862true ~methAndRunningLastTime~0 := 0; 14#L689true havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 57#L700-1true [2021-10-21 20:08:37,512 INFO L793 eck$LassoCheckResult]: Loop: 57#L700-1true assume !false; 40#L618true assume test_~splverifierCounter~0 < 4; 13#L619true test_~tmp~4 := test_#t~nondet61;havoc test_#t~nondet61; 46#L627true assume !(0 != test_~tmp~4); 25#L627-1true test_~tmp___0~0 := test_#t~nondet62;havoc test_#t~nondet62; 31#L637true assume !(0 != test_~tmp___0~0); 60#L637-1true test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 52#L647true assume 0 != test_~tmp___2~0; 45#L653-1true assume !(0 != ~pumpRunning~0); 24#L471true assume !(0 != ~systemActive~0); 58#L478true havoc __utac_acc__Specification2_spec__2_#t~ret65, __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 7#L766true __utac_acc__Specification2_spec__2_#t~ret65 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret65;havoc __utac_acc__Specification2_spec__2_#t~ret65; 53#L700true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 57#L700-1true [2021-10-21 20:08:37,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:37,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 20:08:37,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:37,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167676887] [2021-10-21 20:08:37,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:37,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:37,875 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:08:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:38,047 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:08:38,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:38,063 INFO L82 PathProgramCache]: Analyzing trace with hash 10387603, now seen corresponding path program 1 times [2021-10-21 20:08:38,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:38,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886071550] [2021-10-21 20:08:38,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:38,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:38,073 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:08:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:38,087 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:08:38,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:38,089 INFO L82 PathProgramCache]: Analyzing trace with hash 843684109, now seen corresponding path program 1 times [2021-10-21 20:08:38,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:38,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720358689] [2021-10-21 20:08:38,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:38,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:38,270 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 20:08:38,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:38,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720358689] [2021-10-21 20:08:38,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720358689] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:38,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:38,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:08:38,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228213006] [2021-10-21 20:08:38,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:38,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:08:38,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:38,485 INFO L87 Difference]: Start difference. First operand has 60 states, 59 states have (on average 1.5423728813559323) internal successors, (91), 59 states have internal predecessors, (91), 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 20:08:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:38,768 INFO L93 Difference]: Finished difference Result 166 states and 229 transitions. [2021-10-21 20:08:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:08:38,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 229 transitions. [2021-10-21 20:08:38,782 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 103 [2021-10-21 20:08:38,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 145 states and 208 transitions. [2021-10-21 20:08:38,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2021-10-21 20:08:38,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2021-10-21 20:08:38,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 208 transitions. [2021-10-21 20:08:38,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:08:38,791 INFO L681 BuchiCegarLoop]: Abstraction has 145 states and 208 transitions. [2021-10-21 20:08:38,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 208 transitions. [2021-10-21 20:08:38,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 97. [2021-10-21 20:08:38,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 97 states have (on average 1.4329896907216495) internal successors, (139), 96 states have internal predecessors, (139), 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 20:08:38,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2021-10-21 20:08:38,821 INFO L704 BuchiCegarLoop]: Abstraction has 97 states and 139 transitions. [2021-10-21 20:08:38,821 INFO L587 BuchiCegarLoop]: Abstraction has 97 states and 139 transitions. [2021-10-21 20:08:38,821 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:08:38,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 139 transitions. [2021-10-21 20:08:38,823 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 68 [2021-10-21 20:08:38,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:08:38,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:08:38,824 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:38,825 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:38,825 INFO L791 eck$LassoCheckResult]: Stem: 292#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 283#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 284#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 267#L83 main_#t~ret77 := valid_product_#res;main_~tmp~6 := main_#t~ret77;havoc main_#t~ret77; 268#L886 assume 0 != main_~tmp~6; 256#L862 ~methAndRunningLastTime~0 := 0; 257#L689 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 260#L700-1 [2021-10-21 20:08:38,825 INFO L793 eck$LassoCheckResult]: Loop: 260#L700-1 assume !false; 290#L618 assume test_~splverifierCounter~0 < 4; 258#L619 test_~tmp~4 := test_#t~nondet61;havoc test_#t~nondet61; 259#L627 assume !(0 != test_~tmp~4); 273#L627-1 test_~tmp___0~0 := test_#t~nondet62;havoc test_#t~nondet62; 274#L637 assume !(0 != test_~tmp___0~0); 280#L637-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 296#L647 assume 0 != test_~tmp___2~0; 289#L653-1 assume !(0 != ~pumpRunning~0); 271#L471 assume 0 != ~systemActive~0; 272#L478 havoc __utac_acc__Specification2_spec__2_#t~ret65, __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 250#L766 __utac_acc__Specification2_spec__2_#t~ret65 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret65;havoc __utac_acc__Specification2_spec__2_#t~ret65; 251#L700 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 260#L700-1 [2021-10-21 20:08:38,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:38,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 20:08:38,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:38,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664374986] [2021-10-21 20:08:38,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:38,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:38,893 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:08:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:39,005 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:08:39,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:39,013 INFO L82 PathProgramCache]: Analyzing trace with hash 10298230, now seen corresponding path program 1 times [2021-10-21 20:08:39,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:39,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32410140] [2021-10-21 20:08:39,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:39,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:39,024 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:08:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:39,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:08:39,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:39,044 INFO L82 PathProgramCache]: Analyzing trace with hash 843594736, now seen corresponding path program 1 times [2021-10-21 20:08:39,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:39,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128591051] [2021-10-21 20:08:39,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:39,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:39,087 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:08:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:08:39,139 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:09:39,732 WARN L207 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 20:10:35,631 WARN L207 SmtUtils]: Spent 28.23 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 20:10:35,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:10:35 BoogieIcfgContainer [2021-10-21 20:10:35,824 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:10:35,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:10:35,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:10:35,825 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:10:35,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:08:37" (3/4) ... [2021-10-21 20:10:35,841 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:10:35,929 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:10:35,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:10:35,930 INFO L168 Benchmark]: Toolchain (without parser) took 120075.05 ms. Allocated memory was 86.0 MB in the beginning and 127.9 MB in the end (delta: 41.9 MB). Free memory was 44.3 MB in the beginning and 45.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:35,931 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory is still 62.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:35,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.70 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 44.1 MB in the beginning and 73.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:35,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.63 ms. Allocated memory is still 104.9 MB. Free memory was 73.1 MB in the beginning and 70.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:35,932 INFO L168 Benchmark]: Boogie Preprocessor took 33.64 ms. Allocated memory is still 104.9 MB. Free memory was 70.3 MB in the beginning and 68.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:35,933 INFO L168 Benchmark]: RCFGBuilder took 868.49 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 74.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:35,933 INFO L168 Benchmark]: BuchiAutomizer took 118445.03 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 74.3 MB in the beginning and 47.6 MB in the end (delta: 26.7 MB). Peak memory consumption was 71.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:35,934 INFO L168 Benchmark]: Witness Printer took 104.87 ms. Allocated memory is still 127.9 MB. Free memory was 47.6 MB in the beginning and 45.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:35,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory is still 62.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 522.70 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 44.1 MB in the beginning and 73.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.63 ms. Allocated memory is still 104.9 MB. Free memory was 73.1 MB in the beginning and 70.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.64 ms. Allocated memory is still 104.9 MB. Free memory was 70.3 MB in the beginning and 68.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 868.49 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 74.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 118445.03 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 74.3 MB in the beginning and 47.6 MB in the end (delta: 26.7 MB). Peak memory consumption was 71.3 MB. Max. memory is 16.1 GB. * Witness Printer took 104.87 ms. Allocated memory is still 127.9 MB. Free memory was 47.6 MB in the beginning and 45.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 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 97 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 118.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 117.8s. 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 18.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 48 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 97 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 78 SDtfs, 355 SDslu, 354 SDs, 0 SdLazy, 35 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 174.8ms 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: 617]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8499} State at position 1 is {NULL=0, NULL=0, NULL=8499, NULL=8518, NULL=0, NULL=0, NULL=8504, retValue_acc=0, NULL=8509, NULL=8521, methaneLevelCritical=0, NULL=8500, tmp=0, NULL=0, NULL=8506, tmp___1=0, NULL=8503, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c329791=0, NULL=8526, NULL=8505, NULL=8510, cleanupTimeShifts=4, NULL=8501, NULL=8520, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, retValue_acc=0, NULL=8514, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=8511, NULL=0, NULL=0, NULL=8515, \result=1, head=0, pumpRunning=0, \result=0, NULL=8508, NULL=8527, NULL=0, NULL=0, NULL=0, tmp=1, NULL=8522, NULL=8519, NULL=0, NULL=0, NULL=8516, NULL=0, retValue_acc=1, tmp___2=59, tmp___0=0, NULL=8513, NULL=8524, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=8525, NULL=8502, NULL=8507, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45561858=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a22653b=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43241a0d=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51ec7994=59, NULL=8523, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67516129=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15e86ca6=0, NULL=0, NULL=0, NULL=0, NULL=8517, NULL=8512, tmp=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L463] int pumpRunning = 0; [L464] int systemActive = 1; [L683] int methAndRunningLastTime ; [L723] int waterLevel = 1; [L724] int methaneLevelCritical = 0; [L803] int cleanupTimeShifts = 4; [L877] int retValue_acc ; [L878] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L884] tmp = valid_product() [L886] COND TRUE \read(tmp) [L688] methAndRunningLastTime = 0 [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 Loop: [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp)) [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L471] COND FALSE !(\read(pumpRunning)) [L478] COND TRUE \read(systemActive) [L693] int tmp ; [L694] int tmp___0 ; [L762] int retValue_acc ; [L765] retValue_acc = methaneLevelCritical [L766] return (retValue_acc); [L698] tmp = isMethaneLevelCritical() [L700] COND FALSE !(\read(tmp)) [L716] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:10:36,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361a3297-dcf5-439a-8012-773f344323a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...