./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y --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 e0a38d188f2630eb8c92d710d8937425c14dd1581e9216671e138a935f7e01f2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:16:19,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:16:19,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:16:19,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:16:19,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:16:19,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:16:19,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:16:19,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:16:19,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:16:19,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:16:19,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:16:19,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:16:19,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:16:19,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:16:19,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:16:19,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:16:19,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:16:19,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:16:19,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:16:19,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:16:19,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:16:19,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:16:19,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:16:19,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:16:19,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:16:19,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:16:19,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:16:19,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:16:19,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:16:19,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:16:19,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:16:19,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:16:19,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:16:19,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:16:19,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:16:19,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:16:19,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:16:19,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:16:19,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:16:19,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:16:19,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:16:19,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:16:19,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:16:19,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:16:19,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:16:19,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:16:19,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:16:19,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:16:19,356 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:16:19,356 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:16:19,356 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:16:19,356 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:16:19,357 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:16:19,358 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:16:19,358 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:16:19,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:16:19,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:16:19,359 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:16:19,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:16:19,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:16:19,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:16:19,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:16:19,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:16:19,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:16:19,360 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:16:19,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:16:19,361 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:16:19,361 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:16:19,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:16:19,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:16:19,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:16:19,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:16:19,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:16:19,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:16:19,365 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:16:19,365 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_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a38d188f2630eb8c92d710d8937425c14dd1581e9216671e138a935f7e01f2 [2021-11-13 18:16:19,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:16:19,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:16:19,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:16:19,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:16:19,705 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:16:19,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2021-11-13 18:16:19,793 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/data/8297503d4/f89cd653a7f5468c8126cf5007a022e2/FLAG5e67693f4 [2021-11-13 18:16:20,475 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:16:20,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2021-11-13 18:16:20,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/data/8297503d4/f89cd653a7f5468c8126cf5007a022e2/FLAG5e67693f4 [2021-11-13 18:16:20,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/data/8297503d4/f89cd653a7f5468c8126cf5007a022e2 [2021-11-13 18:16:20,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:16:20,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:16:20,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:16:20,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:16:20,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:16:20,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:16:20" (1/1) ... [2021-11-13 18:16:20,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e91046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:20, skipping insertion in model container [2021-11-13 18:16:20,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:16:20" (1/1) ... [2021-11-13 18:16:20,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:16:20,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:16:21,096 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_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c[8087,8100] [2021-11-13 18:16:21,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:16:21,229 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:16:21,298 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_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c[8087,8100] [2021-11-13 18:16:21,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:16:21,350 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:16:21,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21 WrapperNode [2021-11-13 18:16:21,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:16:21,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:16:21,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:16:21,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:16:21,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:16:21,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:16:21,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:16:21,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:16:21,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:16:21,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:16:21,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:16:21,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:16:21,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (1/1) ... [2021-11-13 18:16:21,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:16:21,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:16:21,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:16:21,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:16:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:16:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:16:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:16:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:16:22,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:16:22,467 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:16:22,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:16:22 BoogieIcfgContainer [2021-11-13 18:16:22,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:16:22,471 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:16:22,471 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:16:22,474 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:16:22,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:16:22,476 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:16:20" (1/3) ... [2021-11-13 18:16:22,477 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@353f8b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:16:22, skipping insertion in model container [2021-11-13 18:16:22,477 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:16:22,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:21" (2/3) ... [2021-11-13 18:16:22,478 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@353f8b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:16:22, skipping insertion in model container [2021-11-13 18:16:22,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:16:22,478 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:16:22" (3/3) ... [2021-11-13 18:16:22,480 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2021-11-13 18:16:22,522 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:16:22,523 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:16:22,523 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:16:22,523 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:16:22,523 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:16:22,523 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:16:22,523 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:16:22,523 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:16:22,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 159 states have internal predecessors, (215), 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) [2021-11-13 18:16:22,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2021-11-13 18:16:22,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:16:22,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:16:22,580 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:22,580 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:22,580 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:16:22,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 159 states have internal predecessors, (215), 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) [2021-11-13 18:16:22,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2021-11-13 18:16:22,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:16:22,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:16:22,592 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:22,592 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:22,597 INFO L791 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 54#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 10#L944true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 103#L937true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 161#L952true main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 146#L533true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 32#L507true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4#L391-2true [2021-11-13 18:16:22,598 INFO L793 eck$LassoCheckResult]: Loop: 4#L391-2true assume !false; 64#L392true assume test_~splverifierCounter~0#1 < 4; 28#L393true test_~tmp~4#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 17#L401true assume !(0 != test_~tmp~4#1); 113#L401-2true test_~tmp___0~2#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 75#L411true assume !(0 != test_~tmp___0~2#1); 44#L411-2true test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 40#L421true assume 0 != test_~tmp___2~0#1; 89#L427-2true assume { :begin_inline_timeShift } true; 118#L194true assume !(0 != ~pumpRunning~0); 150#L194-2true assume !(0 != ~systemActive~0); 116#L201-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret17#1, __utac_acc__Specification3_spec__1_#t~ret18#1, __utac_acc__Specification3_spec__1_#t~ret19#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 94#L100-1true __utac_acc__Specification3_spec__1_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret17#1;havoc __utac_acc__Specification3_spec__1_#t~ret17#1; 13#L157true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 29#L163-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 126#L211true assume { :end_inline_timeShift } true; 4#L391-2true [2021-11-13 18:16:22,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:22,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-13 18:16:22,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:22,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735049157] [2021-11-13 18:16:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:22,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:22,915 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:16:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:23,136 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:16:23,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash -126042026, now seen corresponding path program 1 times [2021-11-13 18:16:23,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:23,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60812971] [2021-11-13 18:16:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:23,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:23,169 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:16:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:23,179 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:16:23,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1229377050, now seen corresponding path program 1 times [2021-11-13 18:16:23,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:23,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589845941] [2021-11-13 18:16:23,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:23,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:23,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:23,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589845941] [2021-11-13 18:16:23,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589845941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:23,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:23,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:16:23,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285406749] [2021-11-13 18:16:23,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:23,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:23,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:16:23,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:16:23,537 INFO L87 Difference]: Start difference. First operand has 160 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 159 states have internal predecessors, (215), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-11-13 18:16:23,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:16:23,817 INFO L93 Difference]: Finished difference Result 377 states and 488 transitions. [2021-11-13 18:16:23,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:16:23,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 377 states and 488 transitions. [2021-11-13 18:16:23,843 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 243 [2021-11-13 18:16:23,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 377 states to 347 states and 458 transitions. [2021-11-13 18:16:23,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2021-11-13 18:16:23,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2021-11-13 18:16:23,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 458 transitions. [2021-11-13 18:16:23,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:23,872 INFO L681 BuchiCegarLoop]: Abstraction has 347 states and 458 transitions. [2021-11-13 18:16:23,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 458 transitions. [2021-11-13 18:16:23,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 205. [2021-11-13 18:16:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.3219512195121952) internal successors, (271), 204 states have internal predecessors, (271), 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) [2021-11-13 18:16:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 271 transitions. [2021-11-13 18:16:23,914 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 271 transitions. [2021-11-13 18:16:23,915 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 271 transitions. [2021-11-13 18:16:23,915 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:16:23,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 271 transitions. [2021-11-13 18:16:23,918 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2021-11-13 18:16:23,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:16:23,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:16:23,920 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:23,920 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:23,920 INFO L791 eck$LassoCheckResult]: Stem: 700#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 638#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 568#L944 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 569#L937 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 675#L952 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 701#L533 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 606#L507 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 555#L391-2 [2021-11-13 18:16:23,921 INFO L793 eck$LassoCheckResult]: Loop: 555#L391-2 assume !false; 556#L392 assume test_~splverifierCounter~0#1 < 4; 602#L393 test_~tmp~4#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 584#L401 assume !(0 != test_~tmp~4#1); 586#L401-2 test_~tmp___0~2#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 663#L411 assume !(0 != test_~tmp___0~2#1); 564#L411-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 616#L421 assume 0 != test_~tmp___2~0#1; 618#L427-2 assume { :begin_inline_timeShift } true; 668#L194 assume !(0 != ~pumpRunning~0); 604#L194-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret21#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 656#L252 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret20#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 632#L226-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 591#L218-3 assume { :end_inline_processEnvironment__wrappee__base } true; 557#L226-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 558#L252-1 assume { :end_inline_processEnvironment } true; 623#L201-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret17#1, __utac_acc__Specification3_spec__1_#t~ret18#1, __utac_acc__Specification3_spec__1_#t~ret19#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 671#L100-1 __utac_acc__Specification3_spec__1_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret17#1;havoc __utac_acc__Specification3_spec__1_#t~ret17#1; 575#L157 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 577#L163-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 603#L211 assume { :end_inline_timeShift } true; 555#L391-2 [2021-11-13 18:16:23,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:23,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-13 18:16:23,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:23,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999572772] [2021-11-13 18:16:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:23,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:23,975 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:16:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,078 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:16:24,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:24,079 INFO L85 PathProgramCache]: Analyzing trace with hash 953573083, now seen corresponding path program 1 times [2021-11-13 18:16:24,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:24,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583494002] [2021-11-13 18:16:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:24,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,086 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:16:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:16:24,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:24,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1405242263, now seen corresponding path program 1 times [2021-11-13 18:16:24,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:24,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199662792] [2021-11-13 18:16:24,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:24,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:24,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:24,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199662792] [2021-11-13 18:16:24,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199662792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:24,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:24,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:16:24,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739730618] [2021-11-13 18:16:24,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:24,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:24,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:16:24,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:16:24,256 INFO L87 Difference]: Start difference. First operand 205 states and 271 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-11-13 18:16:24,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:16:24,429 INFO L93 Difference]: Finished difference Result 730 states and 968 transitions. [2021-11-13 18:16:24,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:16:24,430 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 730 states and 968 transitions. [2021-11-13 18:16:24,442 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 530 [2021-11-13 18:16:24,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 730 states to 730 states and 968 transitions. [2021-11-13 18:16:24,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 730 [2021-11-13 18:16:24,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 730 [2021-11-13 18:16:24,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 730 states and 968 transitions. [2021-11-13 18:16:24,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:24,453 INFO L681 BuchiCegarLoop]: Abstraction has 730 states and 968 transitions. [2021-11-13 18:16:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states and 968 transitions. [2021-11-13 18:16:24,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 403. [2021-11-13 18:16:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 403 states have (on average 1.3076923076923077) internal successors, (527), 402 states have internal predecessors, (527), 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) [2021-11-13 18:16:24,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 527 transitions. [2021-11-13 18:16:24,496 INFO L704 BuchiCegarLoop]: Abstraction has 403 states and 527 transitions. [2021-11-13 18:16:24,496 INFO L587 BuchiCegarLoop]: Abstraction has 403 states and 527 transitions. [2021-11-13 18:16:24,496 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 18:16:24,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 403 states and 527 transitions. [2021-11-13 18:16:24,499 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 288 [2021-11-13 18:16:24,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:16:24,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:16:24,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:24,503 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:24,504 INFO L791 eck$LassoCheckResult]: Stem: 1691#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1596#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1521#L944 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1522#L937 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1649#L952 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 1697#L533 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1563#L507 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1564#L391-2 [2021-11-13 18:16:24,505 INFO L793 eck$LassoCheckResult]: Loop: 1564#L391-2 assume !false; 1744#L392 assume test_~splverifierCounter~0#1 < 4; 1554#L393 test_~tmp~4#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1536#L401 assume !(0 != test_~tmp~4#1); 1538#L401-2 test_~tmp___0~2#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 1625#L411 assume !(0 != test_~tmp___0~2#1); 1517#L411-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 1572#L421 assume 0 != test_~tmp___2~0#1; 1574#L427-2 assume { :begin_inline_timeShift } true; 1635#L194 assume !(0 != ~pumpRunning~0); 1809#L194-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret21#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1786#L252 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret20#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 1588#L226-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1543#L218-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1508#L226-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1509#L252-1 assume { :end_inline_processEnvironment } true; 1579#L201-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret17#1, __utac_acc__Specification3_spec__1_#t~ret18#1, __utac_acc__Specification3_spec__1_#t~ret19#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1663#L100-1 __utac_acc__Specification3_spec__1_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret17#1;havoc __utac_acc__Specification3_spec__1_#t~ret17#1; 1528#L157 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1529#L132 __utac_acc__Specification3_spec__1_#t~ret18#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret18#1;havoc __utac_acc__Specification3_spec__1_#t~ret18#1; 1623#L163 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1560#L163-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1678#L211 assume { :end_inline_timeShift } true; 1564#L391-2 [2021-11-13 18:16:24,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:24,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-11-13 18:16:24,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:24,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35275135] [2021-11-13 18:16:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:24,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,569 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:16:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:16:24,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:24,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1556952014, now seen corresponding path program 1 times [2021-11-13 18:16:24,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:24,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497163374] [2021-11-13 18:16:24,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:24,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,689 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:16:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:16:24,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:24,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1819337098, now seen corresponding path program 1 times [2021-11-13 18:16:24,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:24,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540259955] [2021-11-13 18:16:24,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:24,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,744 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:16:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:16:24,815 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:17:25,799 WARN L227 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 491 DAG size of output: 433 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:18:29,119 WARN L227 SmtUtils]: Spent 30.25s on a formula simplification that was a NOOP. DAG size: 433 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:18:29,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:18:29 BoogieIcfgContainer [2021-11-13 18:18:29,331 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:18:29,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:18:29,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:18:29,348 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:18:29,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:16:22" (3/4) ... [2021-11-13 18:18:29,351 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-13 18:18:29,436 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:18:29,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:18:29,437 INFO L158 Benchmark]: Toolchain (without parser) took 128697.10ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 90.8MB in the beginning and 73.6MB in the end (delta: 17.2MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2021-11-13 18:18:29,438 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory was 103.5MB in the beginning and 103.4MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:18:29,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.68ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 92.8MB in the end (delta: -2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:18:29,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.30ms. Allocated memory is still 127.9MB. Free memory was 92.8MB in the beginning and 89.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:18:29,440 INFO L158 Benchmark]: Boogie Preprocessor took 64.08ms. Allocated memory is still 127.9MB. Free memory was 89.4MB in the beginning and 87.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:18:29,440 INFO L158 Benchmark]: RCFGBuilder took 985.43ms. Allocated memory is still 127.9MB. Free memory was 87.1MB in the beginning and 100.2MB in the end (delta: -13.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-13 18:18:29,441 INFO L158 Benchmark]: BuchiAutomizer took 126859.93ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 100.2MB in the beginning and 76.7MB in the end (delta: 23.4MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2021-11-13 18:18:29,442 INFO L158 Benchmark]: Witness Printer took 104.90ms. Allocated memory is still 155.2MB. Free memory was 76.7MB in the beginning and 73.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:18:29,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory was 103.5MB in the beginning and 103.4MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.68ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 92.8MB in the end (delta: -2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.30ms. Allocated memory is still 127.9MB. Free memory was 92.8MB in the beginning and 89.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.08ms. Allocated memory is still 127.9MB. Free memory was 89.4MB in the beginning and 87.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 985.43ms. Allocated memory is still 127.9MB. Free memory was 87.1MB in the beginning and 100.2MB in the end (delta: -13.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 126859.93ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 100.2MB in the beginning and 76.7MB in the end (delta: 23.4MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. * Witness Printer took 104.90ms. Allocated memory is still 155.2MB. Free memory was 76.7MB in the beginning and 73.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 403 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 126.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 126.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 469 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 403 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1487 SdHoareTripleChecker+Valid, 271.63ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1487 mSDsluCounter, 2325 SdHoareTripleChecker+Invalid, 225.48ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1824 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 501 mSDtfsCounter, 125 mSolverCounterSat, 21.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 391]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=21735} State at position 1 is {splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73a27347=0, NULL=21744, tmp___0=0, NULL=0, NULL=21735, NULL=21741, NULL=21756, NULL=21745, NULL=21742, NULL=21749, methaneLevelCritical=0, NULL=21736, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c434769=0, retValue_acc=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=21743, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25836515=0, tmp___2=53, NULL=21759, NULL=21757, cleanupTimeShifts=4, NULL=21738, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f599a24=53, tmp=1, \result=0, NULL=21754, tmp=0, \result=1, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=0, tmp=0, NULL=21758, NULL=0, NULL=21761, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61b216a6=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@245f8935=0, NULL=21747, NULL=0, NULL=21755, NULL=0, NULL=0, tmp___0=1, retValue_acc=1, NULL=21748, \result=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b1e8be7=0, NULL=0, NULL=21740, \result=1, NULL=0, NULL=0, NULL=21750, NULL=0, NULL=0, NULL=21763, NULL=21751, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61ecb546=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ee68a02=0, NULL=21752, NULL=21762, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d70a072=0, NULL=21746, head=0, NULL=0, NULL=0, NULL=21760, NULL=0, NULL=21753, tmp___1=0, NULL=21737, retValue_acc=1, NULL=21739} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 391]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L448] int cleanupTimeShifts = 4; [L725] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int retValue_acc ; [L525] int tmp ; [L529] FCALL select_helpers() [L530] FCALL select_features() [L531] CALL, EXPR valid_product() [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); [L531] RET, EXPR valid_product() [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) [L535] FCALL setup() [L536] CALL runTest() [L515] CALL test() [L382] int splverifierCounter ; [L383] int tmp ; [L384] int tmp___0 ; [L385] int tmp___1 ; [L386] int tmp___2 ; [L389] splverifierCounter = 0 Loop: [L391] COND TRUE 1 [L393] COND TRUE splverifierCounter < 4 [L399] tmp = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp)) [L409] tmp___0 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___0)) [L419] tmp___2 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___2) [L436] CALL timeShift() [L194] COND FALSE !(\read(pumpRunning)) [L201] COND TRUE \read(systemActive) [L203] CALL processEnvironment() [L249] int tmp ; [L252] COND FALSE !(\read(pumpRunning)) [L267] CALL processEnvironment__wrappee__lowWaterSensor() [L223] int tmp ; [L226] COND FALSE !(\read(pumpRunning)) [L241] FCALL processEnvironment__wrappee__base() [L267] RET processEnvironment__wrappee__lowWaterSensor() [L203] RET processEnvironment() [L209] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND FALSE !(tmp___0 == 2) [L209] RET __utac_acc__Specification3_spec__1() [L436] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 18:18:29,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a69199a-0ddd-44d6-b4a3-dcaaf2111750/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)