./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.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_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/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_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/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_89ceea45-b1e2-41db-b6ef-d55834e74631/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 bb7a46e472d875a33249a5df380376743390ac30 .................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:16:01,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:16:01,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:16:01,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:16:01,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:16:01,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:16:01,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:16:01,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:16:01,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:16:01,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:16:01,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:16:01,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:16:01,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:16:01,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:16:01,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:16:01,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:16:01,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:16:01,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:16:01,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:16:01,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:16:01,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:16:01,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:16:01,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:16:01,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:16:01,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:16:01,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:16:01,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:16:01,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:16:01,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:16:01,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:16:01,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:16:01,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:16:01,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:16:01,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:16:01,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:16:01,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:16:01,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:16:01,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:16:01,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:16:01,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:16:01,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:16:01,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:16:01,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:16:01,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:16:01,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:16:01,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:16:01,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:16:01,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:16:01,422 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:16:01,422 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:16:01,423 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:16:01,423 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:16:01,424 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:16:01,424 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:16:01,425 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:16:01,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:16:01,425 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:16:01,425 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:16:01,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:16:01,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:16:01,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:16:01,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:16:01,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:16:01,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:16:01,427 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:16:01,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:16:01,427 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:16:01,428 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:16:01,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:16:01,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:16:01,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:16:01,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:16:01,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:16:01,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:16:01,432 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:16:01,432 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_89ceea45-b1e2-41db-b6ef-d55834e74631/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb7a46e472d875a33249a5df380376743390ac30 [2021-10-13 01:16:01,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:16:01,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:16:01,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:16:01,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:16:01,705 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:16:01,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2021-10-13 01:16:01,783 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/data/265d72cbc/4502edd751fb4658b12719a1d2a9b216/FLAGc0aafa99c [2021-10-13 01:16:02,288 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:16:02,289 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2021-10-13 01:16:02,306 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/data/265d72cbc/4502edd751fb4658b12719a1d2a9b216/FLAGc0aafa99c [2021-10-13 01:16:02,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/data/265d72cbc/4502edd751fb4658b12719a1d2a9b216 [2021-10-13 01:16:02,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:16:02,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:16:02,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:16:02,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:16:02,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:16:02,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:16:02" (1/1) ... [2021-10-13 01:16:02,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677ed2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:02, skipping insertion in model container [2021-10-13 01:16:02,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:16:02" (1/1) ... [2021-10-13 01:16:02,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:16:02,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:16:02,972 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_89ceea45-b1e2-41db-b6ef-d55834e74631/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c[9009,9022] [2021-10-13 01:16:03,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:16:03,098 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:16:03,144 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_89ceea45-b1e2-41db-b6ef-d55834e74631/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c[9009,9022] [2021-10-13 01:16:03,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:16:03,197 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:16:03,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03 WrapperNode [2021-10-13 01:16:03,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:16:03,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:16:03,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:16:03,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:16:03,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:16:03,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:16:03,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:16:03,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:16:03,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:16:03,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:16:03,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:16:03,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:16:03,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (1/1) ... [2021-10-13 01:16:03,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:03,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:16:03,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:16:03,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:16:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:16:03,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:16:05,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:16:05,022 INFO L299 CfgBuilder]: Removed 900 assume(true) statements. [2021-10-13 01:16:05,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:16:05 BoogieIcfgContainer [2021-10-13 01:16:05,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:16:05,026 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:16:05,026 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:16:05,029 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:16:05,030 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:16:05,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:16:02" (1/3) ... [2021-10-13 01:16:05,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@775b8d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:16:05, skipping insertion in model container [2021-10-13 01:16:05,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:16:05,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:03" (2/3) ... [2021-10-13 01:16:05,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@775b8d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:16:05, skipping insertion in model container [2021-10-13 01:16:05,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:16:05,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:16:05" (3/3) ... [2021-10-13 01:16:05,034 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c [2021-10-13 01:16:05,076 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:16:05,077 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:16:05,077 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:16:05,077 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:16:05,077 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:16:05,077 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:16:05,077 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:16:05,077 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:16:05,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 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 01:16:05,152 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 305 [2021-10-13 01:16:05,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:16:05,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:16:05,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:16:05,162 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:16:05,162 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:16:05,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 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 01:16:05,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 305 [2021-10-13 01:16:05,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:16:05,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:16:05,180 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:16:05,180 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:16:05,186 INFO L791 eck$LassoCheckResult]: Stem: 454#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(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 385#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 399#L1110true havoc select_features_#t~ret83, select_features_#t~ret84, select_features_#t~ret85, select_features_#t~ret86, select_features_#t~ret87, select_features_#t~ret88;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 260#L1085true select_features_#t~ret83 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret83;havoc select_features_#t~ret83;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 461#L1085-1true select_features_#t~ret84 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret84;havoc select_features_#t~ret84;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 186#L1085-2true select_features_#t~ret85 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret85;havoc select_features_#t~ret85;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 335#L1085-3true select_features_#t~ret86 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret86;havoc select_features_#t~ret86;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 317#L1085-4true select_features_#t~ret87 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret87;havoc select_features_#t~ret87;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 184#L1085-5true select_features_#t~ret88 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret88;havoc select_features_#t~ret88; 453#L1102true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~13; 20#L1118true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 462#L132true assume 0 != main_~tmp~0; 366#L105true havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 233#L165-1true [2021-10-13 01:16:05,186 INFO L793 eck$LassoCheckResult]: Loop: 233#L165-1true assume !false; 299#L534true assume test_~splverifierCounter~0 < 4; 425#L535true test_~tmp~8 := test_#t~nondet33;havoc test_#t~nondet33; 268#L543true assume !(0 != test_~tmp~8); 90#L543-1true test_~tmp___0~3 := test_#t~nondet34;havoc test_#t~nondet34; 185#L553true assume !(0 != test_~tmp___0~3); 429#L553-1true test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 176#L563true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet36;havoc test_#t~nondet36; 361#L575true assume !(0 != test_~tmp___1~0); 251#L575-1true assume !(0 != ~pumpRunning~0); 169#L199true assume !(0 != ~systemActive~0); 33#L206true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 102#L1050true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 132#L165true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 233#L165-1true [2021-10-13 01:16:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:05,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 1 times [2021-10-13 01:16:05,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:05,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947216475] [2021-10-13 01:16:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:05,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:05,558 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:16:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:05,740 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:16:05,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:05,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1299784648, now seen corresponding path program 1 times [2021-10-13 01:16:05,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:05,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803590343] [2021-10-13 01:16:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:05,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:05,758 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:16:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:05,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:16:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:05,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1167266414, now seen corresponding path program 1 times [2021-10-13 01:16:05,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:05,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997040593] [2021-10-13 01:16:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:05,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:16:05,949 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 01:16:05,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:16:05,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997040593] [2021-10-13 01:16:05,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997040593] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:16:05,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:16:05,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 01:16:05,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440133920] [2021-10-13 01:16:06,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:16:06,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:16:06,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:16:06,125 INFO L87 Difference]: Start difference. First operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 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 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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 01:16:06,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:16:06,562 INFO L93 Difference]: Finished difference Result 1427 states and 2208 transitions. [2021-10-13 01:16:06,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:16:06,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1427 states and 2208 transitions. [2021-10-13 01:16:06,582 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 942 [2021-10-13 01:16:06,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1427 states to 1399 states and 2180 transitions. [2021-10-13 01:16:06,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1399 [2021-10-13 01:16:06,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1399 [2021-10-13 01:16:06,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1399 states and 2180 transitions. [2021-10-13 01:16:06,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:16:06,614 INFO L681 BuchiCegarLoop]: Abstraction has 1399 states and 2180 transitions. [2021-10-13 01:16:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states and 2180 transitions. [2021-10-13 01:16:06,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 503. [2021-10-13 01:16:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 503 states have (on average 1.5447316103379722) internal successors, (777), 502 states have internal predecessors, (777), 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 01:16:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 777 transitions. [2021-10-13 01:16:06,680 INFO L704 BuchiCegarLoop]: Abstraction has 503 states and 777 transitions. [2021-10-13 01:16:06,680 INFO L587 BuchiCegarLoop]: Abstraction has 503 states and 777 transitions. [2021-10-13 01:16:06,681 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:16:06,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 503 states and 777 transitions. [2021-10-13 01:16:06,685 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 336 [2021-10-13 01:16:06,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:16:06,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:16:06,687 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:16:06,687 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:16:06,687 INFO L791 eck$LassoCheckResult]: Stem: 2375#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(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2360#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 2361#L1110 havoc select_features_#t~ret83, select_features_#t~ret84, select_features_#t~ret85, select_features_#t~ret86, select_features_#t~ret87, select_features_#t~ret88;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2280#L1085 select_features_#t~ret83 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret83;havoc select_features_#t~ret83;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2281#L1085-1 select_features_#t~ret84 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret84;havoc select_features_#t~ret84;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2214#L1085-2 select_features_#t~ret85 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret85;havoc select_features_#t~ret85;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2215#L1085-3 select_features_#t~ret86 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret86;havoc select_features_#t~ret86;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2327#L1085-4 select_features_#t~ret87 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret87;havoc select_features_#t~ret87;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2212#L1085-5 select_features_#t~ret88 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret88;havoc select_features_#t~ret88; 2213#L1102 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~13; 1950#L1118 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1951#L132 assume 0 != main_~tmp~0; 2353#L105 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2140#L165-1 [2021-10-13 01:16:06,688 INFO L793 eck$LassoCheckResult]: Loop: 2140#L165-1 assume !false; 2263#L534 assume test_~splverifierCounter~0 < 4; 2309#L535 test_~tmp~8 := test_#t~nondet33;havoc test_#t~nondet33; 2286#L543 assume !(0 != test_~tmp~8); 2077#L543-1 test_~tmp___0~3 := test_#t~nondet34;havoc test_#t~nondet34; 2078#L553 assume !(0 != test_~tmp___0~3); 2013#L553-1 test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 2203#L563 assume 0 != test_~tmp___2~0; 1946#L564 assume 0 != ~__SELECTED_FEATURE_startCommand~0;~systemActive~0 := 1; 1947#L575-1 assume !(0 != ~pumpRunning~0); 2138#L199 assume 0 != ~systemActive~0; 1975#L342 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 1976#L299-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 2265#L256-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 1918#L206 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 1974#L1050 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 2097#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 2140#L165-1 [2021-10-13 01:16:06,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:06,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 2 times [2021-10-13 01:16:06,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:06,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105799952] [2021-10-13 01:16:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:06,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:06,736 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:16:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:06,818 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:16:06,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:06,823 INFO L82 PathProgramCache]: Analyzing trace with hash 24171960, now seen corresponding path program 1 times [2021-10-13 01:16:06,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:06,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305792561] [2021-10-13 01:16:06,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:06,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:06,834 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:16:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:06,842 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:16:06,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:06,849 INFO L82 PathProgramCache]: Analyzing trace with hash -413646930, now seen corresponding path program 1 times [2021-10-13 01:16:06,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:06,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493906175] [2021-10-13 01:16:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:06,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:06,926 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:16:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:07,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:16,236 WARN L207 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 553 DAG size of output: 495 [2021-10-13 01:18:24,425 WARN L207 SmtUtils]: Spent 33.12 s on a formula simplification that was a NOOP. DAG size: 444 [2021-10-13 01:18:24,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:18:24 BoogieIcfgContainer [2021-10-13 01:18:24,595 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:18:24,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:18:24,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:18:24,596 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:18:24,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:16:05" (3/4) ... [2021-10-13 01:18:24,599 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:18:24,685 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:18:24,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:18:24,686 INFO L168 Benchmark]: Toolchain (without parser) took 142031.79 ms. Allocated memory was 96.5 MB in the beginning and 180.4 MB in the end (delta: 83.9 MB). Free memory was 60.7 MB in the beginning and 95.0 MB in the end (delta: -34.2 MB). Peak memory consumption was 49.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:24,687 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:24,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.62 ms. Allocated memory is still 96.5 MB. Free memory was 60.6 MB in the beginning and 61.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:24,692 INFO L168 Benchmark]: Boogie Procedure Inliner took 172.85 ms. Allocated memory is still 96.5 MB. Free memory was 61.7 MB in the beginning and 50.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:24,693 INFO L168 Benchmark]: Boogie Preprocessor took 185.70 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 50.9 MB in the beginning and 94.6 MB in the end (delta: -43.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:24,694 INFO L168 Benchmark]: RCFGBuilder took 1466.20 ms. Allocated memory is still 123.7 MB. Free memory was 94.6 MB in the beginning and 89.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:24,694 INFO L168 Benchmark]: BuchiAutomizer took 139569.09 ms. Allocated memory was 123.7 MB in the beginning and 180.4 MB in the end (delta: 56.6 MB). Free memory was 89.6 MB in the beginning and 98.1 MB in the end (delta: -8.5 MB). Peak memory consumption was 111.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:24,697 INFO L168 Benchmark]: Witness Printer took 89.56 ms. Allocated memory is still 180.4 MB. Free memory was 98.1 MB in the beginning and 95.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:24,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 542.62 ms. Allocated memory is still 96.5 MB. Free memory was 60.6 MB in the beginning and 61.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 172.85 ms. Allocated memory is still 96.5 MB. Free memory was 61.7 MB in the beginning and 50.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 185.70 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 50.9 MB in the beginning and 94.6 MB in the end (delta: -43.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1466.20 ms. Allocated memory is still 123.7 MB. Free memory was 94.6 MB in the beginning and 89.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 139569.09 ms. Allocated memory was 123.7 MB in the beginning and 180.4 MB in the end (delta: 56.6 MB). Free memory was 89.6 MB in the beginning and 98.1 MB in the end (delta: -8.5 MB). Peak memory consumption was 111.8 MB. Max. memory is 16.1 GB. * Witness Printer took 89.56 ms. Allocated memory is still 180.4 MB. Free memory was 98.1 MB in the beginning and 95.0 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 503 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 139.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 138.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 51.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 896 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 503 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 724 SDtfs, 4238 SDslu, 5248 SDs, 0 SdLazy, 70 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 229.3ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 533]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31698} State at position 1 is {NULL=0, NULL=0, NULL=46272, NULL=31698, NULL=0, NULL=46267, NULL=0, NULL=31701, retValue_acc=1, methaneLevelCritical=0, NULL=0, NULL=46274, NULL=0, tmp=0, tmp___1=0, NULL=0, NULL=31705, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53e006b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10fe1019=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65365c88=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36942eec=0, waterLevel=1, NULL=0, __SELECTED_FEATURE_methaneAlarm=0, NULL=31708, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44a12e25=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d93a058=0, NULL=46259, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65314154=0, head=0, pumpRunning=0, tmp=1, NULL=31706, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51f4c2da=0, NULL=0, tmp=1, NULL=0, NULL=46266, NULL=0, retValue_acc=1, __SELECTED_FEATURE_stopCommand=0, tmp___0=0, NULL=0, NULL=46268, NULL=46271, NULL=46273, NULL=31709, head=0, NULL=0, NULL=0, NULL=46275, retValue_acc=34, choice=34, \result=34, retValue_acc=0, __SELECTED_FEATURE_base=1, NULL=31707, __GUIDSL_ROOT_PRODUCTION=1, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=31700, NULL=0, NULL=46263, systemActive=1, \result=1, __SELECTED_FEATURE_lowWaterSensor=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=46270, NULL=31704, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@531117d4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56ac2be2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9747a09=0, NULL=46261, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54513cc=0, __SELECTED_FEATURE_highWaterSensor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c3ee28a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1267b06d=0, NULL=0, NULL=46262, NULL=31703, NULL=46265, __SELECTED_FEATURE_methaneQuery=0, NULL=46269, tmp___2=40, splverifierCounter=0, NULL=0, NULL=0, NULL=31702, NULL=46264, __SELECTED_FEATURE_startCommand=34, NULL=0, NULL=0, NULL=31699, NULL=0, NULL=46260} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L147] int __SELECTED_FEATURE_base ; [L148] int __SELECTED_FEATURE_highWaterSensor ; [L149] int __SELECTED_FEATURE_lowWaterSensor ; [L150] int __SELECTED_FEATURE_methaneQuery ; [L151] int __SELECTED_FEATURE_methaneAlarm ; [L152] int __SELECTED_FEATURE_stopCommand ; [L153] int __SELECTED_FEATURE_startCommand ; [L154] int __GUIDSL_ROOT_PRODUCTION ; [L192] int pumpRunning = 0; [L193] int systemActive = 1; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L975] int waterLevel = 1; [L976] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L1109] __GUIDSL_ROOT_PRODUCTION = 1 [L1094] __SELECTED_FEATURE_base = 1 [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] return (retValue_acc); [L1095] __SELECTED_FEATURE_highWaterSensor = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] return (retValue_acc); [L1096] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] return (retValue_acc); [L1097] __SELECTED_FEATURE_methaneQuery = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] return (retValue_acc); [L1098] __SELECTED_FEATURE_methaneAlarm = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] return (retValue_acc); [L1099] __SELECTED_FEATURE_stopCommand = select_one() [L1080] int retValue_acc ; [L1081] int choice = __VERIFIER_nondet_int(); [L1084] retValue_acc = choice [L1085] return (retValue_acc); [L1100] __SELECTED_FEATURE_startCommand = select_one() [L1114] int retValue_acc ; [L1117] retValue_acc = __SELECTED_FEATURE_base [L1118] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 Loop: [L533] COND TRUE 1 [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp)) [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L564] COND TRUE \read(__SELECTED_FEATURE_startCommand) [L518] systemActive = 1 [L199] COND FALSE !(\read(pumpRunning)) [L206] COND TRUE \read(systemActive) [L342] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L299] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L256] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L158] int tmp ; [L159] int tmp___0 ; [L1046] int retValue_acc ; [L1049] retValue_acc = waterLevel [L1050] return (retValue_acc); [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:18:24,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89ceea45-b1e2-41db-b6ef-d55834e74631/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...