./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg --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 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-b2eff8b [2021-10-28 08:44:43,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:44:43,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:44:43,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:44:43,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:44:43,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:44:43,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:44:43,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:44:43,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:44:43,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:44:43,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:44:43,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:44:43,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:44:43,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:44:43,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:44:43,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:44:43,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:44:43,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:44:43,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:44:43,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:44:43,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:44:43,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:44:43,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:44:43,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:44:43,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:44:43,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:44:43,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:44:43,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:44:43,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:44:43,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:44:43,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:44:43,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:44:43,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:44:43,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:44:43,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:44:43,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:44:43,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:44:43,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:44:43,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:44:43,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:44:43,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:44:43,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:44:43,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:44:43,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:44:43,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:44:43,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:44:43,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:44:43,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:44:43,330 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:44:43,330 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:44:43,330 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:44:43,330 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:44:43,331 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:44:43,332 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:44:43,332 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:44:43,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:44:43,332 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:44:43,333 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:44:43,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:44:43,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:44:43,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:44:43,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:44:43,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:44:43,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:44:43,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:44:43,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:44:43,335 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:44:43,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:44:43,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:44:43,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:44:43,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:44:43,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:44:43,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:44:43,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:44:43,339 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:44:43,339 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_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc [2021-10-28 08:44:43,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:44:43,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:44:43,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:44:43,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:44:43,650 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:44:43,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-10-28 08:44:43,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/data/02041cf45/435bd160dbda414d8f16d88977c6ecd5/FLAGd5a43ca53 [2021-10-28 08:44:44,314 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:44:44,315 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-10-28 08:44:44,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/data/02041cf45/435bd160dbda414d8f16d88977c6ecd5/FLAGd5a43ca53 [2021-10-28 08:44:44,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/data/02041cf45/435bd160dbda414d8f16d88977c6ecd5 [2021-10-28 08:44:44,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:44:44,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:44:44,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:44:44,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:44:44,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:44:44,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:44:44" (1/1) ... [2021-10-28 08:44:44,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a7ba52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:44, skipping insertion in model container [2021-10-28 08:44:44,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:44:44" (1/1) ... [2021-10-28 08:44:44,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:44:44,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:44:44,856 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_290edefd-b42c-4cae-a599-a45fd0e05d20/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2021-10-28 08:44:44,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:44:44,950 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:44:44,971 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_290edefd-b42c-4cae-a599-a45fd0e05d20/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2021-10-28 08:44:45,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:44:45,101 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:44:45,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45 WrapperNode [2021-10-28 08:44:45,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:44:45,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:44:45,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:44:45,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:44:45,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:44:45,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:44:45,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:44:45,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:44:45,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:44:45,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:44:45,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:44:45,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:44:45,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (1/1) ... [2021-10-28 08:44:45,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:44:45,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:45,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:44:45,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:44:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:44:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:44:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:44:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:44:46,131 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:44:46,132 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-28 08:44:46,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:44:46 BoogieIcfgContainer [2021-10-28 08:44:46,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:44:46,135 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:44:46,135 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:44:46,139 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:44:46,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:44:46,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:44:44" (1/3) ... [2021-10-28 08:44:46,141 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62e39a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:44:46, skipping insertion in model container [2021-10-28 08:44:46,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:44:46,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:44:45" (2/3) ... [2021-10-28 08:44:46,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62e39a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:44:46, skipping insertion in model container [2021-10-28 08:44:46,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:44:46,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:44:46" (3/3) ... [2021-10-28 08:44:46,144 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2021-10-28 08:44:46,187 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:44:46,188 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:44:46,188 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:44:46,188 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:44:46,188 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:44:46,189 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:44:46,189 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:44:46,189 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:44:46,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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) [2021-10-28 08:44:46,228 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-28 08:44:46,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:44:46,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:44:46,236 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:44:46,236 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:44:46,236 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:44:46,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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) [2021-10-28 08:44:46,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-28 08:44:46,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:44:46,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:44:46,244 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:44:46,244 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:44:46,249 INFO L791 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 43#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 15#L161true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 62#L169true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 28#L268true assume 0 != main_~tmp~0; 11#L244true havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L451-1true [2021-10-28 08:44:46,250 INFO L793 eck$LassoCheckResult]: Loop: 7#L451-1true assume !false; 29#L481true assume test_~splverifierCounter~0 < 4; 64#L482true test_~tmp~4 := test_#t~nondet41;havoc test_#t~nondet41; 24#L490true assume !(0 != test_~tmp~4); 66#L490-1true test_~tmp___0~1 := test_#t~nondet42;havoc test_#t~nondet42; 54#L500true assume !(0 != test_~tmp___0~1); 26#L500-1true test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 20#L510true assume 0 != test_~tmp___2~0; 37#L516-2true assume !(0 != ~pumpRunning~0); 56#L293true assume !(0 != ~systemActive~0); 70#L300true havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 51#L99-1true __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 42#L445true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 7#L451-1true [2021-10-28 08:44:46,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:46,256 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 08:44:46,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:46,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170241214] [2021-10-28 08:44:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:46,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:46,531 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:44:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:46,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:44:46,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:46,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1681899275, now seen corresponding path program 1 times [2021-10-28 08:44:46,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:46,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030313933] [2021-10-28 08:44:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:46,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:46,812 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:44:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:46,842 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:44:46,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash 32379663, now seen corresponding path program 1 times [2021-10-28 08:44:46,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:46,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026709166] [2021-10-28 08:44:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:46,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:47,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:47,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:47,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026709166] [2021-10-28 08:44:47,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026709166] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:44:47,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:44:47,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:44:47,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912423996] [2021-10-28 08:44:47,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:47,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:44:47,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:44:47,164 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:47,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:47,364 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2021-10-28 08:44:47,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:44:47,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2021-10-28 08:44:47,371 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-28 08:44:47,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2021-10-28 08:44:47,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2021-10-28 08:44:47,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2021-10-28 08:44:47,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2021-10-28 08:44:47,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:44:47,379 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-28 08:44:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2021-10-28 08:44:47,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-28 08:44:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 states have internal predecessors, (90), 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) [2021-10-28 08:44:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-10-28 08:44:47,410 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-28 08:44:47,410 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-28 08:44:47,411 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:44:47,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2021-10-28 08:44:47,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-28 08:44:47,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:44:47,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:44:47,414 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:44:47,414 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:44:47,414 INFO L791 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 212#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 178#L161 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 179#L169 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 195#L268 assume 0 != main_~tmp~0; 173#L244 havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 166#L451-1 [2021-10-28 08:44:47,415 INFO L793 eck$LassoCheckResult]: Loop: 166#L451-1 assume !false; 167#L481 assume test_~splverifierCounter~0 < 4; 196#L482 test_~tmp~4 := test_#t~nondet41;havoc test_#t~nondet41; 191#L490 assume !(0 != test_~tmp~4); 170#L490-1 test_~tmp___0~1 := test_#t~nondet42;havoc test_#t~nondet42; 221#L500 assume !(0 != test_~tmp___0~1); 165#L500-1 test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 184#L510 assume 0 != test_~tmp___2~0; 185#L516-2 assume !(0 != ~pumpRunning~0); 204#L293 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 224#L325 assume !(0 != ~pumpRunning~0); 209#L300 havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 220#L99-1 __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 210#L445 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 166#L451-1 [2021-10-28 08:44:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:47,416 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 08:44:47,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:47,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35212416] [2021-10-28 08:44:47,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:47,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:47,464 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:44:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:47,562 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:44:47,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:47,567 INFO L85 PathProgramCache]: Analyzing trace with hash -619797874, now seen corresponding path program 1 times [2021-10-28 08:44:47,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:47,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660368219] [2021-10-28 08:44:47,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:47,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:47,579 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:44:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:47,588 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:44:47,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:47,595 INFO L85 PathProgramCache]: Analyzing trace with hash 983241652, now seen corresponding path program 1 times [2021-10-28 08:44:47,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:47,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436470631] [2021-10-28 08:44:47,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:47,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:47,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:47,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:47,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436470631] [2021-10-28 08:44:47,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436470631] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:44:47,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:44:47,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:44:47,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680367274] [2021-10-28 08:44:47,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:47,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:44:47,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:44:47,810 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. cyclomatic complexity: 27 Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2021-10-28 08:44:47,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:47,989 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2021-10-28 08:44:47,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:44:47,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 300 transitions. [2021-10-28 08:44:48,005 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2021-10-28 08:44:48,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 300 transitions. [2021-10-28 08:44:48,014 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2021-10-28 08:44:48,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2021-10-28 08:44:48,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 300 transitions. [2021-10-28 08:44:48,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:44:48,020 INFO L681 BuchiCegarLoop]: Abstraction has 211 states and 300 transitions. [2021-10-28 08:44:48,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 300 transitions. [2021-10-28 08:44:48,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 124. [2021-10-28 08:44:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 124 states have (on average 1.3709677419354838) internal successors, (170), 123 states have internal predecessors, (170), 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) [2021-10-28 08:44:48,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2021-10-28 08:44:48,044 INFO L704 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2021-10-28 08:44:48,044 INFO L587 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2021-10-28 08:44:48,044 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:44:48,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 124 states and 170 transitions. [2021-10-28 08:44:48,047 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2021-10-28 08:44:48,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:44:48,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:44:48,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:44:48,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:44:48,048 INFO L791 eck$LassoCheckResult]: Stem: 533#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 516#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 472#L161 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 473#L169 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 493#L268 assume 0 != main_~tmp~0; 467#L244 havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 460#L451-1 [2021-10-28 08:44:48,050 INFO L793 eck$LassoCheckResult]: Loop: 460#L451-1 assume !false; 461#L481 assume test_~splverifierCounter~0 < 4; 494#L482 test_~tmp~4 := test_#t~nondet41;havoc test_#t~nondet41; 487#L490 assume !(0 != test_~tmp~4); 464#L490-1 test_~tmp___0~1 := test_#t~nondet42;havoc test_#t~nondet42; 529#L500 assume !(0 != test_~tmp___0~1); 490#L500-1 test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 480#L510 assume 0 != test_~tmp___2~0; 481#L516-2 assume !(0 != ~pumpRunning~0); 506#L293 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 532#L325 assume !(0 != ~pumpRunning~0); 511#L300 havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 567#L99-1 __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 514#L445 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 515#L131 __utac_acc__Specification3_spec__1_#t~ret39 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; 538#L451 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 460#L451-1 [2021-10-28 08:44:48,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:48,051 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 08:44:48,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:48,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505225802] [2021-10-28 08:44:48,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:48,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:48,094 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:44:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:48,142 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:44:48,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:48,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1374702912, now seen corresponding path program 1 times [2021-10-28 08:44:48,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:48,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231417799] [2021-10-28 08:44:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:48,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:48,148 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:44:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:48,154 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:44:48,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:48,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2428134, now seen corresponding path program 1 times [2021-10-28 08:44:48,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:48,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007706560] [2021-10-28 08:44:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:48,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:48,207 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:44:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:44:48,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:45:47,323 WARN L207 SmtUtils]: Spent 58.91 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 08:46:46,374 WARN L207 SmtUtils]: Spent 28.04 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 08:46:46,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:46:46 BoogieIcfgContainer [2021-10-28 08:46:46,575 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:46:46,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:46:46,576 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:46:46,576 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:46:46,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:44:46" (3/4) ... [2021-10-28 08:46:46,579 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:46:46,693 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:46:46,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:46:46,695 INFO L168 Benchmark]: Toolchain (without parser) took 122081.01 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 74.8 MB in the beginning and 96.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:46,695 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 55.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:46:46,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.08 ms. Allocated memory is still 100.7 MB. Free memory was 74.5 MB in the beginning and 56.7 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:46,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.61 ms. Allocated memory is still 100.7 MB. Free memory was 56.5 MB in the beginning and 53.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:46,697 INFO L168 Benchmark]: Boogie Preprocessor took 38.19 ms. Allocated memory is still 100.7 MB. Free memory was 53.4 MB in the beginning and 51.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:46,701 INFO L168 Benchmark]: RCFGBuilder took 921.58 ms. Allocated memory is still 100.7 MB. Free memory was 51.5 MB in the beginning and 55.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:46,702 INFO L168 Benchmark]: BuchiAutomizer took 120440.13 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 55.0 MB in the beginning and 98.9 MB in the end (delta: -43.9 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:46,702 INFO L168 Benchmark]: Witness Printer took 117.76 ms. Allocated memory is still 138.4 MB. Free memory was 98.9 MB in the beginning and 96.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:46,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 55.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.08 ms. Allocated memory is still 100.7 MB. Free memory was 74.5 MB in the beginning and 56.7 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.61 ms. Allocated memory is still 100.7 MB. Free memory was 56.5 MB in the beginning and 53.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.19 ms. Allocated memory is still 100.7 MB. Free memory was 53.4 MB in the beginning and 51.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 921.58 ms. Allocated memory is still 100.7 MB. Free memory was 51.5 MB in the beginning and 55.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 120440.13 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 55.0 MB in the beginning and 98.9 MB in the end (delta: -43.9 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. * Witness Printer took 117.76 ms. Allocated memory is still 138.4 MB. Free memory was 98.9 MB in the beginning and 96.8 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 6 locations. The remainder module has 124 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 120.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 119.7s. Construction of modules took 0.2s. 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 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 87 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 124 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 202 SDtfs, 671 SDslu, 327 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 480]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5229} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@308d3ed1=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39fc71eb=0, NULL=0, NULL=5240, NULL=0, NULL=5229, retValue_acc=0, NULL=5237, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@358ca88c=0, NULL=5256, NULL=5239, NULL=5241, methaneLevelCritical=0, NULL=5238, NULL=5230, NULL=0, tmp=0, NULL=0, NULL=5244, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dd028f7=0, NULL=0, NULL=5235, NULL=0, tmp___1=0, NULL=5251, NULL=5246, NULL=0, NULL=0, NULL=0, tmp___0=1, cleanupTimeShifts=4, NULL=5253, NULL=5231, tmp=0, NULL=5247, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33432a16=61, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fb07137=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5593f873=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=5245, NULL=0, NULL=5243, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=5250, NULL=5254, NULL=0, NULL=0, NULL=0, NULL=5234, retValue_acc=1, NULL=5255, NULL=0, NULL=0, NULL=5249, NULL=0, NULL=0, NULL=5252, NULL=0, tmp___2=61, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dd9bfc8=0, \result=0, NULL=5242, NULL=5257, NULL=5236, tmp=0, tmp___1=0, head=0, NULL=5248, NULL=0, NULL=5233, NULL=0, NULL=5232, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e78e62d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L183] int cleanupTimeShifts = 4; [L285] int pumpRunning = 0; [L286] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L259] int retValue_acc ; [L260] int tmp ; [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 Loop: [L480] COND TRUE 1 [L482] COND TRUE splverifierCounter < 4 [L488] tmp = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp)) [L498] tmp___0 = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp___0)) [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) [L293] COND FALSE !(\read(pumpRunning)) [L300] COND TRUE \read(systemActive) [L322] int tmp ; [L325] COND FALSE !(\read(pumpRunning)) [L437] int tmp ; [L438] int tmp___0 ; [L439] int tmp___1 ; [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L443] tmp = isMethaneLevelCritical() [L445] COND FALSE !(\read(tmp)) [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L449] tmp___0 = getWaterLevel() [L451] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:46:46,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290edefd-b42c-4cae-a599-a45fd0e05d20/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...