./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product53.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_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/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_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/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_5022ad8a-1b39-41b7-98bf-5c161d737037/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 1f55fffdfb523946c08e4798dfd7a981dcf70594f408e958cce4b1b6e97bd924 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:09:44,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:09:44,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:09:44,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:09:44,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:09:44,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:09:44,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:09:44,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:09:44,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:09:44,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:09:44,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:09:44,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:09:44,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:09:44,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:09:44,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:09:44,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:09:44,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:09:44,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:09:44,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:09:44,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:09:44,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:09:44,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:09:44,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:09:44,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:09:44,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:09:44,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:09:44,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:09:44,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:09:44,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:09:44,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:09:44,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:09:44,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:09:44,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:09:44,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:09:44,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:09:44,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:09:44,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:09:44,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:09:44,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:09:44,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:09:44,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:09:44,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:09:44,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:09:44,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:09:44,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:09:44,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:09:44,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:09:44,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:09:44,280 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:09:44,280 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:09:44,281 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:09:44,281 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:09:44,282 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:09:44,282 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:09:44,282 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:09:44,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:09:44,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:09:44,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:09:44,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:09:44,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:09:44,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:09:44,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:09:44,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:09:44,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:09:44,287 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:09:44,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:09:44,287 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:09:44,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:09:44,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:09:44,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:09:44,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:09:44,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:09:44,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:09:44,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:09:44,291 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:09:44,292 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_5022ad8a-1b39-41b7-98bf-5c161d737037/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f55fffdfb523946c08e4798dfd7a981dcf70594f408e958cce4b1b6e97bd924 [2021-10-21 19:09:44,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:09:44,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:09:44,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:09:44,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:09:44,602 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:09:44,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2021-10-21 19:09:44,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/data/6a238edcd/dd11b78652164cb08376734481d4affe/FLAGea54a7fc9 [2021-10-21 19:09:45,239 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:09:45,239 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2021-10-21 19:09:45,268 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/data/6a238edcd/dd11b78652164cb08376734481d4affe/FLAGea54a7fc9 [2021-10-21 19:09:45,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/data/6a238edcd/dd11b78652164cb08376734481d4affe [2021-10-21 19:09:45,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:09:45,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:09:45,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:09:45,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:09:45,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:09:45,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:09:45" (1/1) ... [2021-10-21 19:09:45,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e1865d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:45, skipping insertion in model container [2021-10-21 19:09:45,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:09:45" (1/1) ... [2021-10-21 19:09:45,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:09:45,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:09:45,811 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_5022ad8a-1b39-41b7-98bf-5c161d737037/sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c[1605,1618] [2021-10-21 19:09:45,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:09:45,979 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:09:45,993 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_5022ad8a-1b39-41b7-98bf-5c161d737037/sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c[1605,1618] [2021-10-21 19:09:46,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:09:46,134 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:09:46,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46 WrapperNode [2021-10-21 19:09:46,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:09:46,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:09:46,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:09:46,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:09:46,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:09:46,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:09:46,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:09:46,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:09:46,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:09:46,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:09:46,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:09:46,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:09:46,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (1/1) ... [2021-10-21 19:09:46,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:09:46,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:09:46,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:09:46,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:09:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:09:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:09:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:09:46,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:09:47,619 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:09:47,619 INFO L299 CfgBuilder]: Removed 278 assume(true) statements. [2021-10-21 19:09:47,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:09:47 BoogieIcfgContainer [2021-10-21 19:09:47,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:09:47,623 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:09:47,623 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:09:47,627 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:09:47,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:09:47,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:09:45" (1/3) ... [2021-10-21 19:09:47,630 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c8efd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:09:47, skipping insertion in model container [2021-10-21 19:09:47,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:09:47,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:46" (2/3) ... [2021-10-21 19:09:47,630 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c8efd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:09:47, skipping insertion in model container [2021-10-21 19:09:47,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:09:47,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:09:47" (3/3) ... [2021-10-21 19:09:47,632 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2021-10-21 19:09:47,691 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:09:47,691 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:09:47,691 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:09:47,691 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:09:47,692 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:09:47,692 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:09:47,692 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:09:47,692 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:09:47,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.5449735449735449) internal successors, (292), 189 states have internal predecessors, (292), 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 19:09:47,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2021-10-21 19:09:47,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:09:47,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:09:47,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:47,751 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:47,751 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:09:47,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.5449735449735449) internal successors, (292), 189 states have internal predecessors, (292), 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 19:09:47,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2021-10-21 19:09:47,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:09:47,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:09:47,767 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:47,767 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:47,772 INFO L791 eck$LassoCheckResult]: Stem: 171#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 59#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 97#L992true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 142#L1000true main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 18#L852true assume 0 != main_~tmp~10; 178#L825true ~methAndRunningLastTime~0 := 0; 139#L733true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 8#L744-1true [2021-10-21 19:09:47,773 INFO L793 eck$LassoCheckResult]: Loop: 8#L744-1true assume !false; 111#L74true assume test_~splverifierCounter~0 < 4; 92#L75true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 29#L83true assume !(0 != test_~tmp~0); 104#L83-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 47#L93true assume !(0 != test_~tmp___0~0); 159#L93-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 170#L103true assume 0 != test_~tmp___2~0; 181#L109-2true assume !(0 != ~pumpRunning~0); 108#L511true assume !(0 != ~systemActive~0); 11#L518true havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 20#L910-1true __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 54#L744true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 8#L744-1true [2021-10-21 19:09:47,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:47,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:09:47,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:47,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669346568] [2021-10-21 19:09:47,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:47,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:48,116 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:09:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:48,302 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:09:48,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:48,305 INFO L82 PathProgramCache]: Analyzing trace with hash 7801738, now seen corresponding path program 1 times [2021-10-21 19:09:48,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:48,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334483846] [2021-10-21 19:09:48,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:48,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:48,313 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:09:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:48,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:09:48,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:48,328 INFO L82 PathProgramCache]: Analyzing trace with hash 841098244, now seen corresponding path program 1 times [2021-10-21 19:09:48,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:48,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030538126] [2021-10-21 19:09:48,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:48,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:48,485 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 19:09:48,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:48,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030538126] [2021-10-21 19:09:48,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030538126] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:48,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:48,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:09:48,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150383663] [2021-10-21 19:09:48,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:48,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:09:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:09:48,621 INFO L87 Difference]: Start difference. First operand has 190 states, 189 states have (on average 1.5449735449735449) internal successors, (292), 189 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:48,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:48,807 INFO L93 Difference]: Finished difference Result 190 states and 281 transitions. [2021-10-21 19:09:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:09:48,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 281 transitions. [2021-10-21 19:09:48,816 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2021-10-21 19:09:48,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 183 states and 274 transitions. [2021-10-21 19:09:48,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2021-10-21 19:09:48,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2021-10-21 19:09:48,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 274 transitions. [2021-10-21 19:09:48,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:09:48,863 INFO L681 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2021-10-21 19:09:48,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 274 transitions. [2021-10-21 19:09:48,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-10-21 19:09:48,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.4972677595628416) internal successors, (274), 182 states have internal predecessors, (274), 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 19:09:48,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 274 transitions. [2021-10-21 19:09:48,900 INFO L704 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2021-10-21 19:09:48,901 INFO L587 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2021-10-21 19:09:48,901 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:09:48,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 274 transitions. [2021-10-21 19:09:48,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2021-10-21 19:09:48,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:09:48,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:09:48,905 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:48,905 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:48,905 INFO L791 eck$LassoCheckResult]: Stem: 579#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 491#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 492#L992 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 539#L1000 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 426#L852 assume 0 != main_~tmp~10; 427#L825 ~methAndRunningLastTime~0 := 0; 569#L733 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 404#L744-1 [2021-10-21 19:09:48,905 INFO L793 eck$LassoCheckResult]: Loop: 404#L744-1 assume !false; 410#L74 assume test_~splverifierCounter~0 < 4; 532#L75 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 445#L83 assume !(0 != test_~tmp~0); 447#L83-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 478#L93 assume !(0 != test_~tmp___0~0); 414#L93-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 576#L103 assume 0 != test_~tmp___2~0; 574#L109-2 assume !(0 != ~pumpRunning~0); 497#L511 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 548#L595 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 405#L569-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 407#L543-3 assume !(0 == ~pumpRunning~0); 411#L518 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 412#L910-1 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 428#L744 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 404#L744-1 [2021-10-21 19:09:48,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:48,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:09:48,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:48,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138639622] [2021-10-21 19:09:48,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:48,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:48,950 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:09:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:49,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:09:49,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:49,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1898042756, now seen corresponding path program 1 times [2021-10-21 19:09:49,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:49,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565283464] [2021-10-21 19:09:49,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:49,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:49,025 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 19:09:49,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:49,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565283464] [2021-10-21 19:09:49,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565283464] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:49,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:49,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:09:49,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176708304] [2021-10-21 19:09:49,027 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:09:49,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:49,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:09:49,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:49,028 INFO L87 Difference]: Start difference. First operand 183 states and 274 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:49,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:49,152 INFO L93 Difference]: Finished difference Result 191 states and 268 transitions. [2021-10-21 19:09:49,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:09:49,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 268 transitions. [2021-10-21 19:09:49,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2021-10-21 19:09:49,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 191 states and 268 transitions. [2021-10-21 19:09:49,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 191 [2021-10-21 19:09:49,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 191 [2021-10-21 19:09:49,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 191 states and 268 transitions. [2021-10-21 19:09:49,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:09:49,169 INFO L681 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2021-10-21 19:09:49,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states and 268 transitions. [2021-10-21 19:09:49,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2021-10-21 19:09:49,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 191 states have (on average 1.4031413612565444) internal successors, (268), 190 states have internal predecessors, (268), 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 19:09:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 268 transitions. [2021-10-21 19:09:49,193 INFO L704 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2021-10-21 19:09:49,194 INFO L587 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2021-10-21 19:09:49,194 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:09:49,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 268 transitions. [2021-10-21 19:09:49,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2021-10-21 19:09:49,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:09:49,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:09:49,202 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:49,202 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:49,202 INFO L791 eck$LassoCheckResult]: Stem: 930#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 854#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 855#L992 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 895#L1000 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 803#L852 assume 0 != main_~tmp~10; 804#L825 ~methAndRunningLastTime~0 := 0; 921#L733 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 784#L744-1 [2021-10-21 19:09:49,203 INFO L793 eck$LassoCheckResult]: Loop: 784#L744-1 assume !false; 787#L74 assume test_~splverifierCounter~0 < 4; 891#L75 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 815#L83 assume !(0 != test_~tmp~0); 817#L83-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 841#L93 assume !(0 != test_~tmp___0~0); 791#L93-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 928#L103 assume 0 != test_~tmp___2~0; 926#L109-2 assume !(0 != ~pumpRunning~0); 904#L511 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 905#L595 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 785#L569-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 786#L543-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 877#L950-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 878#L955-3 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 866#L697-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 867#L697-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 922#L703-3 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 896#L547-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 792#L518 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 793#L910-1 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 805#L744 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 784#L744-1 [2021-10-21 19:09:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:49,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:09:49,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:49,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533913985] [2021-10-21 19:09:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:49,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:49,264 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:09:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:49,346 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:09:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:49,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1628692856, now seen corresponding path program 1 times [2021-10-21 19:09:49,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:49,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094238835] [2021-10-21 19:09:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:49,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:49,371 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:09:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:49,382 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:09:49,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:49,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1799089998, now seen corresponding path program 1 times [2021-10-21 19:09:49,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:49,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048763433] [2021-10-21 19:09:49,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:49,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:49,429 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:09:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:09:49,518 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:10:50,693 WARN L207 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:11:54,926 WARN L207 SmtUtils]: Spent 31.16 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:11:55,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:11:55 BoogieIcfgContainer [2021-10-21 19:11:55,136 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:11:55,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:11:55,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:11:55,137 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:11:55,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:09:47" (3/4) ... [2021-10-21 19:11:55,140 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:11:55,216 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:11:55,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:11:55,218 INFO L168 Benchmark]: Toolchain (without parser) took 129670.05 ms. Allocated memory was 109.1 MB in the beginning and 199.2 MB in the end (delta: 90.2 MB). Free memory was 75.6 MB in the beginning and 57.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:55,218 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 109.1 MB. Free memory is still 62.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:11:55,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.32 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 75.6 MB in the beginning and 115.1 MB in the end (delta: -39.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:55,220 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.67 ms. Allocated memory is still 148.9 MB. Free memory was 115.1 MB in the beginning and 110.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:55,221 INFO L168 Benchmark]: Boogie Preprocessor took 59.95 ms. Allocated memory is still 148.9 MB. Free memory was 110.2 MB in the beginning and 106.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:55,222 INFO L168 Benchmark]: RCFGBuilder took 1293.32 ms. Allocated memory is still 148.9 MB. Free memory was 106.7 MB in the beginning and 112.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:55,223 INFO L168 Benchmark]: BuchiAutomizer took 127512.99 ms. Allocated memory was 148.9 MB in the beginning and 199.2 MB in the end (delta: 50.3 MB). Free memory was 112.4 MB in the beginning and 60.4 MB in the end (delta: 52.0 MB). Peak memory consumption was 117.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:55,224 INFO L168 Benchmark]: Witness Printer took 79.91 ms. Allocated memory is still 199.2 MB. Free memory was 60.4 MB in the beginning and 57.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:55,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 109.1 MB. Free memory is still 62.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 583.32 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 75.6 MB in the beginning and 115.1 MB in the end (delta: -39.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.67 ms. Allocated memory is still 148.9 MB. Free memory was 115.1 MB in the beginning and 110.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.95 ms. Allocated memory is still 148.9 MB. Free memory was 110.2 MB in the beginning and 106.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1293.32 ms. Allocated memory is still 148.9 MB. Free memory was 106.7 MB in the beginning and 112.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 127512.99 ms. Allocated memory was 148.9 MB in the beginning and 199.2 MB in the end (delta: 50.3 MB). Free memory was 112.4 MB in the beginning and 60.4 MB in the end (delta: 52.0 MB). Peak memory consumption was 117.9 MB. Max. memory is 16.1 GB. * Witness Printer took 79.91 ms. Allocated memory is still 199.2 MB. Free memory was 60.4 MB in the beginning and 57.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 191 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 126.8s. Construction of modules took 0.1s. 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 47.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 191 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 490 SDtfs, 974 SDslu, 83 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 185.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 73]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20492} State at position 1 is {NULL=0, NULL=20498, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16bbf724=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cdac06f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3829a16e=0, NULL=20492, NULL=0, NULL=0, retValue_acc=1, methaneLevelCritical=0, NULL=20517, retValue_acc=0, NULL=20515, tmp___1=0, NULL=20523, NULL=0, NULL=20521, cleanupTimeShifts=4, tmp=0, NULL=20512, tmp=1, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@745b61e6=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=20501, NULL=20502, NULL=0, NULL=0, \result=1, NULL=0, NULL=20503, NULL=0, NULL=0, NULL=0, tmp=1, NULL=20522, methAndRunningLastTime=0, NULL=20519, NULL=20505, head=0, tmp=0, NULL=20513, NULL=0, NULL=0, NULL=20504, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42e6d929=0, NULL=0, NULL=20494, retValue_acc=0, NULL=20500, NULL=0, NULL=20516, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10c635c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@246e2dd9=0, NULL=0, tmp___0=0, NULL=0, NULL=20493, NULL=20509, tmp=0, NULL=0, tmp=0, NULL=20499, NULL=20510, NULL=20511, NULL=0, NULL=0, systemActive=1, NULL=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=20514, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72064bc8=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9e0b8e8=0, NULL=20524, tmp___0=0, tmp___2=63, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=20520, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dc5d76d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24b3156a=0, NULL=20495, NULL=20518, NULL=20508, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L503] int pumpRunning = 0; [L504] int systemActive = 1; [L727] int methAndRunningLastTime ; [L766] int cleanupTimeShifts = 4; [L867] int waterLevel = 1; [L868] int methaneLevelCritical = 0; [L843] int retValue_acc ; [L844] int tmp ; [L996] int retValue_acc ; [L999] retValue_acc = 1 [L1000] return (retValue_acc); [L850] tmp = valid_product() [L852] COND TRUE \read(tmp) [L732] methAndRunningLastTime = 0 [L64] int splverifierCounter ; [L65] int tmp ; [L66] int tmp___0 ; [L67] int tmp___1 ; [L68] int tmp___2 ; [L71] splverifierCounter = 0 Loop: [L73] COND TRUE 1 [L75] COND TRUE splverifierCounter < 4 [L81] tmp = __VERIFIER_nondet_int() [L83] COND FALSE !(\read(tmp)) [L91] tmp___0 = __VERIFIER_nondet_int() [L93] COND FALSE !(\read(tmp___0)) [L101] tmp___2 = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp___2) [L511] COND FALSE !(\read(pumpRunning)) [L518] COND TRUE \read(systemActive) [L592] int tmp ; [L595] COND FALSE !(\read(pumpRunning)) [L566] int tmp ; [L569] COND FALSE !(\read(pumpRunning)) [L540] int tmp ; [L543] COND TRUE ! pumpRunning [L689] int retValue_acc ; [L690] int tmp ; [L691] int tmp___0 ; [L947] int retValue_acc ; [L950] COND TRUE waterLevel < 2 [L951] retValue_acc = 1 [L952] return (retValue_acc); [L695] tmp = isHighWaterSensorDry() [L697] COND TRUE \read(tmp) [L698] tmp___0 = 0 [L702] retValue_acc = tmp___0 [L703] return (retValue_acc); [L545] tmp = isHighWaterLevel() [L547] COND FALSE !(\read(tmp)) [L737] int tmp ; [L738] int tmp___0 ; [L906] int retValue_acc ; [L909] retValue_acc = methaneLevelCritical [L910] return (retValue_acc); [L742] tmp = isMethaneLevelCritical() [L744] COND FALSE !(\read(tmp)) [L760] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:11:55,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5022ad8a-1b39-41b7-98bf-5c161d737037/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...