./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.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_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/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_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/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_b5788de6-e112-40f3-91fc-688da808edaa/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 b28893eeb4e8958df7bf6ff738f75538c209345459f7fc3e6dda93763604868d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:15:27,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:15:27,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:15:27,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:15:27,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:15:27,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:15:27,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:15:27,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:15:27,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:15:27,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:15:27,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:15:27,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:15:27,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:15:27,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:15:27,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:15:27,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:15:27,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:15:27,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:15:27,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:15:27,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:15:27,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:15:27,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:15:27,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:15:27,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:15:27,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:15:27,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:15:27,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:15:27,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:15:27,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:15:27,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:15:27,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:15:27,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:15:27,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:15:27,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:15:27,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:15:27,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:15:27,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:15:27,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:15:27,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:15:27,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:15:27,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:15:27,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:15:27,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:15:27,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:15:27,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:15:27,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:15:27,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:15:27,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:15:27,374 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:15:27,375 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:15:27,375 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:15:27,375 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:15:27,375 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:15:27,376 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:15:27,376 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:15:27,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:15:27,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:15:27,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:15:27,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:15:27,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:15:27,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:15:27,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:15:27,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:15:27,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:15:27,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:15:27,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:15:27,378 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:15:27,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:15:27,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:15:27,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:15:27,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:15:27,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:15:27,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:15:27,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:15:27,381 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:15:27,381 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_b5788de6-e112-40f3-91fc-688da808edaa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b28893eeb4e8958df7bf6ff738f75538c209345459f7fc3e6dda93763604868d [2021-10-21 20:15:27,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:15:27,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:15:27,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:15:27,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:15:27,641 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:15:27,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2021-10-21 20:15:27,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/data/b32859630/7bca6bdddca8474d843a6530f8521377/FLAGa37e97c1c [2021-10-21 20:15:28,232 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:15:28,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2021-10-21 20:15:28,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/data/b32859630/7bca6bdddca8474d843a6530f8521377/FLAGa37e97c1c [2021-10-21 20:15:28,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/data/b32859630/7bca6bdddca8474d843a6530f8521377 [2021-10-21 20:15:28,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:15:28,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:15:28,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:15:28,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:15:28,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:15:28,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:15:28" (1/1) ... [2021-10-21 20:15:28,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33cc2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:28, skipping insertion in model container [2021-10-21 20:15:28,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:15:28" (1/1) ... [2021-10-21 20:15:28,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:15:28,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:15:28,878 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_b5788de6-e112-40f3-91fc-688da808edaa/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c[13010,13023] [2021-10-21 20:15:28,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:15:28,945 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:15:28,995 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_b5788de6-e112-40f3-91fc-688da808edaa/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c[13010,13023] [2021-10-21 20:15:29,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:15:29,034 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:15:29,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29 WrapperNode [2021-10-21 20:15:29,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:15:29,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:15:29,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:15:29,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:15:29,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:15:29,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:15:29,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:15:29,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:15:29,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:15:29,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:15:29,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:15:29,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:15:29,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (1/1) ... [2021-10-21 20:15:29,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:15:29,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:15:29,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:15:29,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:15:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:15:30,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:15:30,190 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-10-21 20:15:30,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:15:30 BoogieIcfgContainer [2021-10-21 20:15:30,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:15:30,194 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:15:30,194 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:15:30,199 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:15:30,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:15:30,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:15:28" (1/3) ... [2021-10-21 20:15:30,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@101b31a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:15:30, skipping insertion in model container [2021-10-21 20:15:30,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:15:30,203 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:15:29" (2/3) ... [2021-10-21 20:15:30,203 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@101b31a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:15:30, skipping insertion in model container [2021-10-21 20:15:30,204 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:15:30,204 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:15:30" (3/3) ... [2021-10-21 20:15:30,206 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2021-10-21 20:15:30,263 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:15:30,263 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:15:30,263 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:15:30,263 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:15:30,264 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:15:30,264 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:15:30,264 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:15:30,264 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:15:30,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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 20:15:30,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-10-21 20:15:30,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:15:30,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:15:30,338 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:15:30,338 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:15:30,339 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:15:30,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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 20:15:30,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-10-21 20:15:30,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:15:30,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:15:30,347 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:15:30,348 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:15:30,352 INFO L791 eck$LassoCheckResult]: Stem: 116#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 38#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 32#L951true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 101#L959true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 52#L140true assume 0 != main_~tmp~0; 108#L113true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 15#L165-1true [2021-10-21 20:15:30,353 INFO L793 eck$LassoCheckResult]: Loop: 15#L165-1true assume !false; 39#L873true assume test_~splverifierCounter~0 < 4; 77#L874true test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 37#L882true assume !(0 != test_~tmp~9); 4#L882-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 115#L892true assume !(0 != test_~tmp___0~2); 82#L892-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 98#L902true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 53#L910-2true assume !(0 != ~pumpRunning~0); 105#L572true assume !(0 != ~systemActive~0); 10#L579true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 70#L843true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 11#L165true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 15#L165-1true [2021-10-21 20:15:30,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:30,358 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 20:15:30,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:30,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661775450] [2021-10-21 20:15:30,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:30,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:30,689 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:15:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:30,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:15:30,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:30,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1678359101, now seen corresponding path program 1 times [2021-10-21 20:15:30,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:30,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682148517] [2021-10-21 20:15:30,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:30,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:15:30,991 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 20:15:30,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:15:30,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682148517] [2021-10-21 20:15:30,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682148517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:15:30,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:15:30,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:15:30,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332983155] [2021-10-21 20:15:30,998 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:15:30,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:15:31,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:15:31,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:15:31,017 INFO L87 Difference]: Start difference. First operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 20:15:31,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:15:31,057 INFO L93 Difference]: Finished difference Result 126 states and 179 transitions. [2021-10-21 20:15:31,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:15:31,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 179 transitions. [2021-10-21 20:15:31,063 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-10-21 20:15:31,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 119 states and 171 transitions. [2021-10-21 20:15:31,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2021-10-21 20:15:31,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2021-10-21 20:15:31,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 171 transitions. [2021-10-21 20:15:31,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:15:31,073 INFO L681 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-10-21 20:15:31,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 171 transitions. [2021-10-21 20:15:31,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-21 20:15:31,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.4369747899159664) internal successors, (171), 118 states have internal predecessors, (171), 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 20:15:31,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2021-10-21 20:15:31,109 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-10-21 20:15:31,109 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-10-21 20:15:31,109 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:15:31,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 171 transitions. [2021-10-21 20:15:31,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-10-21 20:15:31,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:15:31,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:15:31,113 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:15:31,113 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:15:31,114 INFO L791 eck$LassoCheckResult]: Stem: 379#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 318#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 310#L951 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 311#L959 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 338#L140 assume 0 != main_~tmp~0; 339#L113 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 276#L165-1 [2021-10-21 20:15:31,114 INFO L793 eck$LassoCheckResult]: Loop: 276#L165-1 assume !false; 283#L873 assume test_~splverifierCounter~0 < 4; 319#L874 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 317#L882 assume !(0 != test_~tmp~9); 261#L882-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 262#L892 assume !(0 != test_~tmp___0~2); 325#L892-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 363#L902 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 285#L910-2 assume !(0 != ~pumpRunning~0); 340#L572 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 364#L630 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 286#L604-1 assume !(0 == ~pumpRunning~0); 273#L579 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 274#L843 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 275#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 276#L165-1 [2021-10-21 20:15:31,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:31,115 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 20:15:31,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:31,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607336381] [2021-10-21 20:15:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:31,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:31,188 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:15:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:31,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:15:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:31,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1075674043, now seen corresponding path program 1 times [2021-10-21 20:15:31,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:31,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74796438] [2021-10-21 20:15:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:31,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:15:31,313 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 20:15:31,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:15:31,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74796438] [2021-10-21 20:15:31,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74796438] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:15:31,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:15:31,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:15:31,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912280322] [2021-10-21 20:15:31,322 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:15:31,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:15:31,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:15:31,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:15:31,326 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 20:15:31,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:15:31,448 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2021-10-21 20:15:31,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:15:31,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 219 transitions. [2021-10-21 20:15:31,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2021-10-21 20:15:31,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 219 transitions. [2021-10-21 20:15:31,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2021-10-21 20:15:31,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2021-10-21 20:15:31,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 219 transitions. [2021-10-21 20:15:31,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:15:31,469 INFO L681 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-10-21 20:15:31,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 219 transitions. [2021-10-21 20:15:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-10-21 20:15:31,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 1.36875) internal successors, (219), 159 states have internal predecessors, (219), 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 20:15:31,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 219 transitions. [2021-10-21 20:15:31,482 INFO L704 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-10-21 20:15:31,482 INFO L587 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-10-21 20:15:31,482 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:15:31,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 219 transitions. [2021-10-21 20:15:31,484 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2021-10-21 20:15:31,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:15:31,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:15:31,485 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:15:31,485 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] [2021-10-21 20:15:31,486 INFO L791 eck$LassoCheckResult]: Stem: 674#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 607#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 599#L951 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 600#L959 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 627#L140 assume 0 != main_~tmp~0; 628#L113 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 563#L165-1 [2021-10-21 20:15:31,486 INFO L793 eck$LassoCheckResult]: Loop: 563#L165-1 assume !false; 569#L873 assume test_~splverifierCounter~0 < 4; 610#L874 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 606#L882 assume !(0 != test_~tmp~9); 546#L882-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 547#L892 assume !(0 != test_~tmp___0~2); 614#L892-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 652#L902 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 571#L910-2 assume !(0 != ~pumpRunning~0); 629#L572 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 651#L630 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 572#L604-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 573#L851-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 581#L856-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 582#L749-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 646#L749-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 641#L755-1 processEnvironment__wrappee__methaneQuery_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret45;havoc processEnvironment__wrappee__methaneQuery_#t~ret45; 642#L608-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 558#L579 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 559#L843 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 562#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 563#L165-1 [2021-10-21 20:15:31,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:31,487 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-21 20:15:31,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:31,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738951208] [2021-10-21 20:15:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:31,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:31,527 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:15:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:31,600 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:15:31,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:31,601 INFO L82 PathProgramCache]: Analyzing trace with hash -515194543, now seen corresponding path program 1 times [2021-10-21 20:15:31,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:31,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962799869] [2021-10-21 20:15:31,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:31,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:31,608 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:15:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:31,616 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:15:31,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:31,616 INFO L82 PathProgramCache]: Analyzing trace with hash -59123349, now seen corresponding path program 1 times [2021-10-21 20:15:31,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:31,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822909395] [2021-10-21 20:15:31,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:31,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:31,649 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:15:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:31,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:16:27,593 WARN L207 SmtUtils]: Spent 55.63 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 20:17:24,035 WARN L207 SmtUtils]: Spent 27.22 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 20:17:24,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:17:24 BoogieIcfgContainer [2021-10-21 20:17:24,165 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:17:24,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:17:24,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:17:24,166 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:17:24,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:15:30" (3/4) ... [2021-10-21 20:17:24,168 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:17:24,235 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:17:24,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:17:24,244 INFO L168 Benchmark]: Toolchain (without parser) took 115682.54 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 68.5 MB in the beginning and 87.4 MB in the end (delta: -19.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:24,244 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 102.8 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:17:24,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.68 ms. Allocated memory is still 102.8 MB. Free memory was 68.3 MB in the beginning and 70.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:24,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.52 ms. Allocated memory is still 102.8 MB. Free memory was 70.6 MB in the beginning and 66.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:24,247 INFO L168 Benchmark]: Boogie Preprocessor took 75.32 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 64.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:24,248 INFO L168 Benchmark]: RCFGBuilder took 1001.92 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.9 MB in the beginning and 72.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:24,248 INFO L168 Benchmark]: BuchiAutomizer took 113970.77 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 72.4 MB in the beginning and 89.5 MB in the end (delta: -17.1 MB). Peak memory consumption was 70.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:24,248 INFO L168 Benchmark]: Witness Printer took 72.69 ms. Allocated memory is still 148.9 MB. Free memory was 89.5 MB in the beginning and 87.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:24,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 102.8 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.68 ms. Allocated memory is still 102.8 MB. Free memory was 68.3 MB in the beginning and 70.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.52 ms. Allocated memory is still 102.8 MB. Free memory was 70.6 MB in the beginning and 66.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.32 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 64.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1001.92 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.9 MB in the beginning and 72.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 113970.77 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 72.4 MB in the beginning and 89.5 MB in the end (delta: -17.1 MB). Peak memory consumption was 70.4 MB. Max. memory is 16.1 GB. * Witness Printer took 72.69 ms. Allocated memory is still 148.9 MB. Free memory was 89.5 MB in the beginning and 87.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 113.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 113.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 33.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 332 SDtfs, 304 SDslu, 57 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 872]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9830} State at position 1 is {NULL=0, NULL=0, NULL=9830, NULL=9850, NULL=0, NULL=0, NULL=0, NULL=9853, methaneLevelCritical=0, retValue_acc=1, NULL=9835, NULL=0, tmp___1=0, tmp=0, NULL=9833, retValue_acc=0, NULL=0, NULL=9837, cleanupTimeShifts=4, NULL=9842, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e7b57d6=0, waterLevel=1, NULL=0, NULL=0, NULL=9847, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64cc451c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43e4e5f5=0, NULL=9845, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f475fe7=0, \result=1, tmp=1, NULL=0, NULL=9849, retValue_acc=1, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=9832, NULL=9848, head=0, NULL=0, tmp=0, NULL=9834, NULL=0, NULL=0, NULL=0, NULL=9856, tmp=0, NULL=0, retValue_acc=0, NULL=0, NULL=9846, NULL=9855, NULL=9841, tmp___0=0, NULL=0, NULL=9844, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a31f652=0, NULL=0, tmp___0=0, NULL=9839, NULL=9831, NULL=9843, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ba2fa10=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28272d76=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a782171=0, NULL=0, NULL=0, systemActive=1, NULL=9851, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@538ff4c3=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9838, \result=0, NULL=9854, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12acccdd=0, NULL=9852, NULL=9840, tmp___2=71, splverifierCounter=0, NULL=0, NULL=9836, NULL=9858, NULL=9857} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L565] int pumpRunning = 0; [L566] int systemActive = 1; [L768] int waterLevel = 1; [L769] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L955] int retValue_acc ; [L958] retValue_acc = 1 [L959] return (retValue_acc); [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L863] int splverifierCounter ; [L864] int tmp ; [L865] int tmp___0 ; [L866] int tmp___1 ; [L867] int tmp___2 ; [L870] splverifierCounter = 0 Loop: [L872] COND TRUE 1 [L874] COND TRUE splverifierCounter < 4 [L880] tmp = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp)) [L890] tmp___0 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___0)) [L900] tmp___2 = __VERIFIER_nondet_int() [L902] COND TRUE \read(tmp___2) [L763] systemActive = 1 [L572] COND FALSE !(\read(pumpRunning)) [L579] COND TRUE \read(systemActive) [L627] int tmp ; [L630] COND FALSE !(\read(pumpRunning)) [L601] int tmp ; [L604] COND TRUE ! pumpRunning [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L848] int retValue_acc ; [L851] COND TRUE waterLevel < 2 [L852] retValue_acc = 1 [L853] return (retValue_acc); [L747] tmp = isHighWaterSensorDry() [L749] COND TRUE \read(tmp) [L750] tmp___0 = 0 [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); [L606] tmp = isHighWaterLevel() [L608] COND FALSE !(\read(tmp)) [L158] int tmp ; [L159] int tmp___0 ; [L839] int retValue_acc ; [L842] retValue_acc = waterLevel [L843] return (retValue_acc); [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:17:24,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5788de6-e112-40f3-91fc-688da808edaa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...