./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt --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 647f9a243e92567482b901aa26f051c7fecee7f7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-4e77c04 [2021-10-13 00:36:03,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:36:03,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:36:03,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:36:03,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:36:03,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:36:03,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:36:03,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:36:03,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:36:03,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:36:03,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:36:03,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:36:03,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:36:03,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:36:03,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:36:03,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:36:03,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:36:03,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:36:03,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:36:03,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:36:03,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:36:03,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:36:03,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:36:03,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:36:03,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:36:03,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:36:03,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:36:03,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:36:03,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:36:03,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:36:03,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:36:03,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:36:03,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:36:03,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:36:03,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:36:03,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:36:03,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:36:03,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:36:03,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:36:03,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:36:03,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:36:03,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:36:03,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:36:03,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:36:03,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:36:03,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:36:03,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:36:03,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:36:03,266 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:36:03,267 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:36:03,267 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:36:03,267 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:36:03,269 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:36:03,269 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:36:03,269 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:36:03,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:36:03,270 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:36:03,270 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:36:03,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:36:03,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:36:03,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:36:03,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:36:03,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:36:03,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:36:03,272 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:36:03,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:36:03,273 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:36:03,273 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:36:03,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:36:03,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:36:03,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:36:03,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:36:03,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:36:03,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:36:03,278 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:36:03,279 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_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647f9a243e92567482b901aa26f051c7fecee7f7 [2021-10-13 00:36:03,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:36:03,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:36:03,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:36:03,623 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:36:03,624 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:36:03,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2021-10-13 00:36:03,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/data/b7d69bd71/704d2d32ceaa490aa74ad12903416326/FLAGec213c36f [2021-10-13 00:36:04,454 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:36:04,454 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2021-10-13 00:36:04,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/data/b7d69bd71/704d2d32ceaa490aa74ad12903416326/FLAGec213c36f [2021-10-13 00:36:04,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/data/b7d69bd71/704d2d32ceaa490aa74ad12903416326 [2021-10-13 00:36:04,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:36:04,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:36:04,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:36:04,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:36:04,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:36:04,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:04" (1/1) ... [2021-10-13 00:36:04,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67dbe78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:04, skipping insertion in model container [2021-10-13 00:36:04,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:04" (1/1) ... [2021-10-13 00:36:04,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:36:04,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:36:05,094 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_f8264423-1d72-4db2-8d6b-b308592a8ef2/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c[12801,12814] [2021-10-13 00:36:05,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:36:05,195 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:36:05,251 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_f8264423-1d72-4db2-8d6b-b308592a8ef2/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c[12801,12814] [2021-10-13 00:36:05,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:36:05,324 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:36:05,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05 WrapperNode [2021-10-13 00:36:05,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:36:05,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:36:05,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:36:05,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:36:05,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:36:05,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:36:05,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:36:05,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:36:05,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:36:05,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:36:05,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:36:05,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:36:05,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (1/1) ... [2021-10-13 00:36:05,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:36:05,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:05,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:36:05,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:36:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:36:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:36:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:36:05,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:36:06,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:36:06,858 INFO L299 CfgBuilder]: Removed 294 assume(true) statements. [2021-10-13 00:36:06,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:06 BoogieIcfgContainer [2021-10-13 00:36:06,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:36:06,863 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:36:06,863 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:36:06,867 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:36:06,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:36:06,869 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:36:04" (1/3) ... [2021-10-13 00:36:06,871 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@482a4ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:36:06, skipping insertion in model container [2021-10-13 00:36:06,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:36:06,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:05" (2/3) ... [2021-10-13 00:36:06,872 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@482a4ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:36:06, skipping insertion in model container [2021-10-13 00:36:06,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:36:06,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:06" (3/3) ... [2021-10-13 00:36:06,874 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2021-10-13 00:36:06,954 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:36:06,955 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:36:06,955 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:36:06,955 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:36:06,955 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:36:06,955 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:36:06,955 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:36:06,955 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:36:06,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.530612244897959) internal successors, (300), 196 states have internal predecessors, (300), 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) [2021-10-13 00:36:07,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2021-10-13 00:36:07,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:36:07,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:36:07,024 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:07,024 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:07,024 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:36:07,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.530612244897959) internal successors, (300), 196 states have internal predecessors, (300), 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) [2021-10-13 00:36:07,038 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2021-10-13 00:36:07,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:36:07,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:36:07,040 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:07,040 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:07,047 INFO L791 eck$LassoCheckResult]: Stem: 189#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 123#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 149#L536true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 72#L544true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 187#L500true assume 0 != main_~tmp~3; 12#L471true ~switchedOnBeforeTS~0 := 0; 59#L987true havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 146#L1008-1true [2021-10-13 00:36:07,047 INFO L793 eck$LassoCheckResult]: Loop: 146#L1008-1true assume !false; 22#L570true assume test_~splverifierCounter~0 < 4; 80#L571true test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 101#L579true assume !(0 != test_~tmp~4); 100#L579-1true test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 103#L589true assume !(0 != test_~tmp___0~0); 68#L589-1true test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 144#L599true assume 0 != test_~tmp___2~0; 133#L605-1true havoc __utac_acc__Specification5_spec__2_#t~ret80;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 84#L887true __utac_acc__Specification5_spec__2_#t~ret80 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret80;havoc __utac_acc__Specification5_spec__2_#t~ret80; 159#L997true assume !(0 != ~pumpRunning~0); 179#L750true assume !(0 != ~systemActive~0); 39#L757true havoc __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_#t~ret82, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 156#L707true __utac_acc__Specification5_spec__3_#t~ret81 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 62#L1008true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 146#L1008-1true [2021-10-13 00:36:07,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:07,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:36:07,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:07,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272690977] [2021-10-13 00:36:07,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:07,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:07,423 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:07,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:07,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:07,557 INFO L82 PathProgramCache]: Analyzing trace with hash -236750955, now seen corresponding path program 1 times [2021-10-13 00:36:07,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:07,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764722694] [2021-10-13 00:36:07,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:07,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:07,564 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:07,574 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:07,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:07,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1697274255, now seen corresponding path program 1 times [2021-10-13 00:36:07,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:07,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722074822] [2021-10-13 00:36:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:07,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:07,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:07,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722074822] [2021-10-13 00:36:07,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722074822] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:36:07,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:36:07,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:36:07,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378993544] [2021-10-13 00:36:07,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:36:07,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:36:07,989 INFO L87 Difference]: Start difference. First operand has 197 states, 196 states have (on average 1.530612244897959) internal successors, (300), 196 states have internal predecessors, (300), 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 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-13 00:36:08,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:08,296 INFO L93 Difference]: Finished difference Result 445 states and 652 transitions. [2021-10-13 00:36:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:36:08,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 652 transitions. [2021-10-13 00:36:08,319 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2021-10-13 00:36:08,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 424 states and 631 transitions. [2021-10-13 00:36:08,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 424 [2021-10-13 00:36:08,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 424 [2021-10-13 00:36:08,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 424 states and 631 transitions. [2021-10-13 00:36:08,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:36:08,350 INFO L681 BuchiCegarLoop]: Abstraction has 424 states and 631 transitions. [2021-10-13 00:36:08,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states and 631 transitions. [2021-10-13 00:36:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 239. [2021-10-13 00:36:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 239 states have (on average 1.4769874476987448) internal successors, (353), 238 states have internal predecessors, (353), 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) [2021-10-13 00:36:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 353 transitions. [2021-10-13 00:36:08,419 INFO L704 BuchiCegarLoop]: Abstraction has 239 states and 353 transitions. [2021-10-13 00:36:08,420 INFO L587 BuchiCegarLoop]: Abstraction has 239 states and 353 transitions. [2021-10-13 00:36:08,421 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:36:08,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 239 states and 353 transitions. [2021-10-13 00:36:08,423 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2021-10-13 00:36:08,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:36:08,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:36:08,426 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:08,427 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:08,427 INFO L791 eck$LassoCheckResult]: Stem: 848#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 745#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 746#L536 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 803#L544 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 845#L500 assume 0 != main_~tmp~3; 715#L471 ~switchedOnBeforeTS~0 := 0; 716#L987 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 801#L1008-1 [2021-10-13 00:36:08,428 INFO L793 eck$LassoCheckResult]: Loop: 801#L1008-1 assume !false; 742#L570 assume test_~splverifierCounter~0 < 4; 743#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 670#L579 assume !(0 != test_~tmp~4); 668#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 669#L589 assume !(0 != test_~tmp___0~0); 676#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 794#L599 assume 0 != test_~tmp___2~0; 771#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret80;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 772#L887 __utac_acc__Specification5_spec__2_#t~ret80 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret80;havoc __utac_acc__Specification5_spec__2_#t~ret80; 820#L997 assume !(0 != ~pumpRunning~0); 822#L750 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 842#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret59, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 838#L808-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 777#L782-3 assume !(0 == ~pumpRunning~0); 690#L757 havoc __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_#t~ret82, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 790#L707 __utac_acc__Specification5_spec__3_#t~ret81 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 816#L1008 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 801#L1008-1 [2021-10-13 00:36:08,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:08,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:36:08,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:08,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820298319] [2021-10-13 00:36:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:08,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:08,513 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:08,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:08,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:08,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1192194302, now seen corresponding path program 1 times [2021-10-13 00:36:08,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:08,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877539274] [2021-10-13 00:36:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:08,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:08,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:08,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877539274] [2021-10-13 00:36:08,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877539274] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:36:08,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:36:08,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:36:08,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274147128] [2021-10-13 00:36:08,662 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:36:08,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:08,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:36:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:36:08,664 INFO L87 Difference]: Start difference. First operand 239 states and 353 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-13 00:36:08,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:08,822 INFO L93 Difference]: Finished difference Result 250 states and 344 transitions. [2021-10-13 00:36:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:36:08,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 344 transitions. [2021-10-13 00:36:08,828 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-10-13 00:36:08,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 250 states and 344 transitions. [2021-10-13 00:36:08,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 250 [2021-10-13 00:36:08,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 250 [2021-10-13 00:36:08,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 250 states and 344 transitions. [2021-10-13 00:36:08,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:36:08,833 INFO L681 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2021-10-13 00:36:08,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states and 344 transitions. [2021-10-13 00:36:08,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2021-10-13 00:36:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 250 states have (on average 1.376) internal successors, (344), 249 states have internal predecessors, (344), 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) [2021-10-13 00:36:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 344 transitions. [2021-10-13 00:36:08,861 INFO L704 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2021-10-13 00:36:08,861 INFO L587 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2021-10-13 00:36:08,861 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:36:08,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 250 states and 344 transitions. [2021-10-13 00:36:08,863 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-10-13 00:36:08,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:36:08,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:36:08,866 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:08,867 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:08,867 INFO L791 eck$LassoCheckResult]: Stem: 1325#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1225#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1226#L536 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1274#L544 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1320#L500 assume 0 != main_~tmp~3; 1195#L471 ~switchedOnBeforeTS~0 := 0; 1196#L987 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1302#L1008-1 [2021-10-13 00:36:08,868 INFO L793 eck$LassoCheckResult]: Loop: 1302#L1008-1 assume !false; 1390#L570 assume test_~splverifierCounter~0 < 4; 1391#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 1404#L579 assume !(0 != test_~tmp~4); 1402#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 1401#L589 assume !(0 != test_~tmp___0~0); 1399#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 1265#L599 assume 0 != test_~tmp___2~0; 1247#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret80;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 1248#L887 __utac_acc__Specification5_spec__2_#t~ret80 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret80;havoc __utac_acc__Specification5_spec__2_#t~ret80; 1289#L997 assume !(0 != ~pumpRunning~0); 1290#L750 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1324#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret59, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 1311#L808-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1250#L782-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1251#L715-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1268#L720-3 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 1231#L936-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1232#L936-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1309#L942-3 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 1240#L786-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1173#L757 havoc __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_#t~ret82, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1263#L707 __utac_acc__Specification5_spec__3_#t~ret81 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 1285#L1008 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 1302#L1008-1 [2021-10-13 00:36:08,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:08,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:36:08,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:08,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238801837] [2021-10-13 00:36:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:08,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:08,928 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:09,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:09,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:09,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1771616150, now seen corresponding path program 1 times [2021-10-13 00:36:09,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:09,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120959252] [2021-10-13 00:36:09,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:09,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:09,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:09,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:09,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120959252] [2021-10-13 00:36:09,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120959252] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:36:09,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:36:09,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:36:09,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288782976] [2021-10-13 00:36:09,075 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:36:09,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:09,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:36:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:36:09,076 INFO L87 Difference]: Start difference. First operand 250 states and 344 transitions. cyclomatic complexity: 97 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-10-13 00:36:09,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:09,407 INFO L93 Difference]: Finished difference Result 1069 states and 1483 transitions. [2021-10-13 00:36:09,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:36:09,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1069 states and 1483 transitions. [2021-10-13 00:36:09,418 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 743 [2021-10-13 00:36:09,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1069 states to 1069 states and 1483 transitions. [2021-10-13 00:36:09,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1069 [2021-10-13 00:36:09,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1069 [2021-10-13 00:36:09,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1069 states and 1483 transitions. [2021-10-13 00:36:09,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:36:09,431 INFO L681 BuchiCegarLoop]: Abstraction has 1069 states and 1483 transitions. [2021-10-13 00:36:09,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states and 1483 transitions. [2021-10-13 00:36:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 490. [2021-10-13 00:36:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 490 states have (on average 1.3591836734693878) internal successors, (666), 489 states have internal predecessors, (666), 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) [2021-10-13 00:36:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 666 transitions. [2021-10-13 00:36:09,454 INFO L704 BuchiCegarLoop]: Abstraction has 490 states and 666 transitions. [2021-10-13 00:36:09,454 INFO L587 BuchiCegarLoop]: Abstraction has 490 states and 666 transitions. [2021-10-13 00:36:09,454 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:36:09,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 490 states and 666 transitions. [2021-10-13 00:36:09,458 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 350 [2021-10-13 00:36:09,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:36:09,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:36:09,459 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:09,460 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:09,460 INFO L791 eck$LassoCheckResult]: Stem: 2676#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 2565#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2566#L536 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 2617#L544 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 2670#L500 assume 0 != main_~tmp~3; 2534#L471 ~switchedOnBeforeTS~0 := 0; 2535#L987 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2649#L1008-1 [2021-10-13 00:36:09,460 INFO L793 eck$LassoCheckResult]: Loop: 2649#L1008-1 assume !false; 2835#L570 assume test_~splverifierCounter~0 < 4; 2836#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 2948#L579 assume !(0 != test_~tmp~4); 2946#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 2945#L589 assume !(0 != test_~tmp___0~0); 2943#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 2942#L599 assume 0 != test_~tmp___2~0; 2941#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret80;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2949#L887 __utac_acc__Specification5_spec__2_#t~ret80 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret80;havoc __utac_acc__Specification5_spec__2_#t~ret80; 2916#L997 assume !(0 != ~pumpRunning~0); 2851#L750 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2850#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret59, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 2807#L808-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2591#L782-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2592#L715-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2610#L720-3 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 2572#L936-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2573#L936-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2655#L942-3 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 2580#L786-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2509#L757 havoc __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_#t~ret82, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 2846#L707 __utac_acc__Specification5_spec__3_#t~ret81 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 2842#L1008 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2843#L887-1 __utac_acc__Specification5_spec__3_#t~ret82 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret82;havoc __utac_acc__Specification5_spec__3_#t~ret82; 2838#L1012 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2649#L1008-1 [2021-10-13 00:36:09,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:09,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-13 00:36:09,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:09,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086222113] [2021-10-13 00:36:09,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:09,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:09,499 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:09,539 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:09,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:09,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1716079387, now seen corresponding path program 1 times [2021-10-13 00:36:09,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:09,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767195609] [2021-10-13 00:36:09,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:09,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:09,550 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:09,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:09,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:09,580 INFO L82 PathProgramCache]: Analyzing trace with hash 612676267, now seen corresponding path program 1 times [2021-10-13 00:36:09,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:09,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722366225] [2021-10-13 00:36:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:09,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:09,614 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:09,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:10,421 WARN L207 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:38:12,897 WARN L207 SmtUtils]: Spent 29.80 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:38:13,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:38:13 BoogieIcfgContainer [2021-10-13 00:38:13,058 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:38:13,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:38:13,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:38:13,060 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:38:13,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:06" (3/4) ... [2021-10-13 00:38:13,063 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:38:13,192 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:38:13,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:38:13,193 INFO L168 Benchmark]: Toolchain (without parser) took 128482.37 ms. Allocated memory was 98.6 MB in the beginning and 169.9 MB in the end (delta: 71.3 MB). Free memory was 64.8 MB in the beginning and 109.0 MB in the end (delta: -44.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:13,194 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:38:13,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.05 ms. Allocated memory is still 98.6 MB. Free memory was 64.6 MB in the beginning and 63.8 MB in the end (delta: 750.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:13,194 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.89 ms. Allocated memory is still 98.6 MB. Free memory was 63.8 MB in the beginning and 58.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:13,195 INFO L168 Benchmark]: Boogie Preprocessor took 106.48 ms. Allocated memory is still 98.6 MB. Free memory was 58.9 MB in the beginning and 55.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:13,195 INFO L168 Benchmark]: RCFGBuilder took 1295.14 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 55.2 MB in the beginning and 65.7 MB in the end (delta: -10.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:13,196 INFO L168 Benchmark]: BuchiAutomizer took 126196.03 ms. Allocated memory was 132.1 MB in the beginning and 169.9 MB in the end (delta: 37.7 MB). Free memory was 65.7 MB in the beginning and 112.2 MB in the end (delta: -46.4 MB). Peak memory consumption was 73.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:13,196 INFO L168 Benchmark]: Witness Printer took 133.08 ms. Allocated memory is still 169.9 MB. Free memory was 112.2 MB in the beginning and 109.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:13,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 606.05 ms. Allocated memory is still 98.6 MB. Free memory was 64.6 MB in the beginning and 63.8 MB in the end (delta: 750.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 131.89 ms. Allocated memory is still 98.6 MB. Free memory was 63.8 MB in the beginning and 58.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 106.48 ms. Allocated memory is still 98.6 MB. Free memory was 58.9 MB in the beginning and 55.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1295.14 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 55.2 MB in the beginning and 65.7 MB in the end (delta: -10.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 126196.03 ms. Allocated memory was 132.1 MB in the beginning and 169.9 MB in the end (delta: 37.7 MB). Free memory was 65.7 MB in the beginning and 112.2 MB in the end (delta: -46.4 MB). Peak memory consumption was 73.0 MB. Max. memory is 16.1 GB. * Witness Printer took 133.08 ms. Allocated memory is still 169.9 MB. Free memory was 112.2 MB in the beginning and 109.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 490 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 126.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 124.9s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 104.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 764 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 490 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 926 SDtfs, 2611 SDslu, 2242 SDs, 0 SdLazy, 270 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 449.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 569]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5432} State at position 1 is {NULL=0, NULL=5436, NULL=0, NULL=5432, NULL=5443, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@93e1969=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d1d78cc=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35bd871c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7eb893ee=0, NULL=5454, methaneLevelCritical=0, tmp=0, NULL=0, tmp___1=0, NULL=5456, NULL=0, NULL=5457, NULL=5459, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a82f7ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b9ea3dd=0, cleanupTimeShifts=4, retValue_acc=0, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=5442, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, tmp=1, NULL=0, retValue_acc=0, NULL=0, NULL=5444, NULL=0, tmp=1, retValue_acc=1, NULL=0, NULL=5460, NULL=5447, NULL=5452, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57b5e76c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f9cb238=0, head=0, NULL=0, NULL=0, NULL=5450, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=5434, NULL=5438, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@942947e=0, NULL=5458, tmp___0=0, NULL=0, NULL=0, tmp=0, NULL=0, NULL=5451, NULL=5453, switchedOnBeforeTS=0, NULL=5448, tmp=0, \result=0, NULL=5437, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=5433, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e8af4bd=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=5445, NULL=5435, \result=0, tmp___0=0, NULL=0, NULL=5439, retValue_acc=1, NULL=5455, NULL=5446, tmp___2=56, splverifierCounter=0, NULL=0, NULL=5449, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37a200ed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12290aa7=0, NULL=5441, NULL=5440} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L632] int waterLevel = 1; [L633] int methaneLevelCritical = 0; [L738] int pumpRunning = 0; [L739] int systemActive = 1; [L981] int switchedOnBeforeTS ; [L491] int retValue_acc ; [L492] int tmp ; [L540] int retValue_acc ; [L543] retValue_acc = 1 [L544] return (retValue_acc); [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L986] switchedOnBeforeTS = 0 [L560] int splverifierCounter ; [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; [L564] int tmp___2 ; [L567] splverifierCounter = 0 Loop: [L569] COND TRUE 1 [L571] COND TRUE splverifierCounter < 4 [L577] tmp = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp)) [L587] tmp___0 = __VERIFIER_nondet_int() [L589] COND FALSE !(\read(tmp___0)) [L597] tmp___2 = __VERIFIER_nondet_int() [L599] COND TRUE \read(tmp___2) [L883] int retValue_acc ; [L886] retValue_acc = pumpRunning [L887] return (retValue_acc); [L995] switchedOnBeforeTS = isPumpRunning() [L750] COND FALSE !(\read(pumpRunning)) [L757] COND TRUE \read(systemActive) [L831] int tmp ; [L834] COND FALSE !(\read(pumpRunning)) [L805] int tmp ; [L808] COND FALSE !(\read(pumpRunning)) [L779] int tmp ; [L782] COND TRUE ! pumpRunning [L928] int retValue_acc ; [L929] int tmp ; [L930] int tmp___0 ; [L712] int retValue_acc ; [L715] COND TRUE waterLevel < 2 [L716] retValue_acc = 1 [L717] return (retValue_acc); [L934] tmp = isHighWaterSensorDry() [L936] COND TRUE \read(tmp) [L937] tmp___0 = 0 [L941] retValue_acc = tmp___0 [L942] return (retValue_acc); [L784] tmp = isHighWaterLevel() [L786] COND FALSE !(\read(tmp)) [L1001] int tmp ; [L1002] int tmp___0 ; [L703] int retValue_acc ; [L706] retValue_acc = waterLevel [L707] return (retValue_acc); [L1006] tmp = getWaterLevel() [L1008] COND TRUE tmp != 2 [L883] int retValue_acc ; [L886] retValue_acc = pumpRunning [L887] return (retValue_acc); [L1010] tmp___0 = isPumpRunning() [L1012] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:38:13,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264423-1d72-4db2-8d6b-b308592a8ef2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...