./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product24.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_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/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_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/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_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/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 e5bb50ae68610f68f43b93d5545ed6b596dfa5e8 .................................................................................................................................................................................................................................................................................................................................................................................... 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 00:48:41,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:48:41,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:48:41,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:48:41,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:48:41,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:48:41,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:48:41,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:48:41,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:48:41,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:48:41,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:48:41,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:48:41,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:48:41,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:48:41,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:48:41,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:48:41,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:48:41,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:48:41,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:48:41,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:48:41,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:48:41,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:48:41,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:48:41,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:48:41,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:48:41,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:48:41,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:48:41,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:48:41,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:48:41,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:48:41,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:48:41,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:48:41,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:48:41,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:48:41,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:48:41,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:48:41,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:48:41,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:48:41,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:48:41,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:48:41,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:48:41,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:48:41,322 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:48:41,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:48:41,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:48:41,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:48:41,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:48:41,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:48:41,327 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:48:41,328 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:48:41,328 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:48:41,328 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:48:41,330 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:48:41,330 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:48:41,330 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:48:41,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:48:41,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:48:41,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:48:41,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:48:41,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:48:41,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:48:41,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:48:41,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:48:41,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:48:41,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:48:41,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:48:41,333 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:48:41,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:48:41,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:48:41,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:48:41,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:48:41,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:48:41,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:48:41,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:48:41,340 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:48:41,340 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_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5bb50ae68610f68f43b93d5545ed6b596dfa5e8 [2021-10-13 00:48:41,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:48:41,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:48:41,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:48:41,669 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:48:41,670 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:48:41,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c [2021-10-13 00:48:41,751 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/data/7125ed19b/8b4ed99462674d76b4699925915be21e/FLAGbbc41e2d4 [2021-10-13 00:48:42,465 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:48:42,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c [2021-10-13 00:48:42,481 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/data/7125ed19b/8b4ed99462674d76b4699925915be21e/FLAGbbc41e2d4 [2021-10-13 00:48:42,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/data/7125ed19b/8b4ed99462674d76b4699925915be21e [2021-10-13 00:48:42,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:48:42,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:48:42,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:48:42,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:48:42,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:48:42,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:48:42" (1/1) ... [2021-10-13 00:48:42,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e89d1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:42, skipping insertion in model container [2021-10-13 00:48:42,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:48:42" (1/1) ... [2021-10-13 00:48:42,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:48:42,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:48:43,167 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_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c[17127,17140] [2021-10-13 00:48:43,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:48:43,192 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:48:43,299 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_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c[17127,17140] [2021-10-13 00:48:43,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:48:43,346 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:48:43,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43 WrapperNode [2021-10-13 00:48:43,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:48:43,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:48:43,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:48:43,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:48:43,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:48:43,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:48:43,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:48:43,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:48:43,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:48:43,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:48:43,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:48:43,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:48:43,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (1/1) ... [2021-10-13 00:48:43,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:48:43,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:48:43,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:48:43,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:48:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:48:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:48:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:48:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:48:44,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:48:44,762 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2021-10-13 00:48:44,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:44 BoogieIcfgContainer [2021-10-13 00:48:44,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:48:44,767 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:48:44,767 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:48:44,775 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:48:44,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:48:44,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:48:42" (1/3) ... [2021-10-13 00:48:44,779 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d1e11da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:48:44, skipping insertion in model container [2021-10-13 00:48:44,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:48:44,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:43" (2/3) ... [2021-10-13 00:48:44,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d1e11da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:48:44, skipping insertion in model container [2021-10-13 00:48:44,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:48:44,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:44" (3/3) ... [2021-10-13 00:48:44,782 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product24.cil.c [2021-10-13 00:48:44,835 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:48:44,835 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:48:44,835 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:48:44,835 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:48:44,835 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:48:44,835 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:48:44,835 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:48:44,836 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:48:44,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 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 00:48:44,898 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-13 00:48:44,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:48:44,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:48:44,907 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:48:44,907 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:48:44,907 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:48:44,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 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 00:48:44,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-13 00:48:44,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:48:44,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:48:44,917 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:48:44,917 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:48:44,923 INFO L791 eck$LassoCheckResult]: Stem: 100#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.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(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 35#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 84#L718true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 82#L726true main_#t~ret67 := valid_product_#res;main_~tmp~7 := main_#t~ret67;havoc main_#t~ret67; 64#L815true assume 0 != main_~tmp~7; 61#L790true ~methAndRunningLastTime~0 := 0; 12#L836true havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L847-1true [2021-10-13 00:48:44,923 INFO L793 eck$LassoCheckResult]: Loop: 33#L847-1true assume !false; 53#L269true assume test_~splverifierCounter~0 < 4; 8#L270true test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 110#L278true assume !(0 != test_~tmp~3); 88#L278-1true test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 24#L288true assume !(0 != test_~tmp___0~1); 57#L288-1true test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 28#L298true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 99#L306-1true assume !(0 != ~pumpRunning~0); 62#L61true assume !(0 != ~systemActive~0); 105#L68true havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 70#L922-1true __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 92#L847true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 33#L847-1true [2021-10-13 00:48:44,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:44,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:48:44,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:44,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345028495] [2021-10-13 00:48:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:44,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:45,338 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:48:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:45,618 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:48:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:45,628 INFO L82 PathProgramCache]: Analyzing trace with hash 13527572, now seen corresponding path program 1 times [2021-10-13 00:48:45,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:45,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689017907] [2021-10-13 00:48:45,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:45,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:48:45,737 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 00:48:45,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:48:45,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689017907] [2021-10-13 00:48:45,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689017907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:48:45,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:48:45,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:48:45,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625049199] [2021-10-13 00:48:45,751 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:48:45,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:48:45,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:48:45,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:48:45,779 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:48:45,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:48:45,893 INFO L93 Difference]: Finished difference Result 209 states and 301 transitions. [2021-10-13 00:48:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:48:45,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 301 transitions. [2021-10-13 00:48:45,904 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2021-10-13 00:48:45,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 195 states and 286 transitions. [2021-10-13 00:48:45,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2021-10-13 00:48:45,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2021-10-13 00:48:45,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 286 transitions. [2021-10-13 00:48:45,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:48:45,928 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 286 transitions. [2021-10-13 00:48:45,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 286 transitions. [2021-10-13 00:48:45,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2021-10-13 00:48:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 1.4663212435233162) internal successors, (283), 192 states have internal predecessors, (283), 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 00:48:45,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 283 transitions. [2021-10-13 00:48:45,980 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 283 transitions. [2021-10-13 00:48:45,980 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 283 transitions. [2021-10-13 00:48:45,980 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:48:45,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 283 transitions. [2021-10-13 00:48:46,015 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2021-10-13 00:48:46,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:48:46,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:48:46,016 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:48:46,016 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:48:46,017 INFO L791 eck$LassoCheckResult]: Stem: 438#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.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(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 384#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 385#L718 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 425#L726 main_#t~ret67 := valid_product_#res;main_~tmp~7 := main_#t~ret67;havoc main_#t~ret67; 412#L815 assume 0 != main_~tmp~7; 410#L790 ~methAndRunningLastTime~0 := 0; 343#L836 havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 344#L847-1 [2021-10-13 00:48:46,017 INFO L793 eck$LassoCheckResult]: Loop: 344#L847-1 assume !false; 446#L269 assume test_~splverifierCounter~0 < 4; 334#L270 test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 335#L278 assume !(0 != test_~tmp~3); 329#L278-1 test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 364#L288 assume !(0 != test_~tmp___0~1); 366#L288-1 test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 371#L298 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 373#L306-1 assume !(0 != ~pumpRunning~0); 399#L61 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 411#L119 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret7, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 436#L93-1 assume !(0 != ~pumpRunning~0); 356#L68 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 416#L922-1 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 417#L847 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 344#L847-1 [2021-10-13 00:48:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:46,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:48:46,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:46,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853667101] [2021-10-13 00:48:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:46,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:46,111 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:48:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:46,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:48:46,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:46,217 INFO L82 PathProgramCache]: Analyzing trace with hash -2034283738, now seen corresponding path program 1 times [2021-10-13 00:48:46,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:46,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895072795] [2021-10-13 00:48:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:46,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:46,228 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:48:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:46,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:48:46,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:48:46,252 INFO L82 PathProgramCache]: Analyzing trace with hash -100258528, now seen corresponding path program 1 times [2021-10-13 00:48:46,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:48:46,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732764926] [2021-10-13 00:48:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:48:46,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:48:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:46,319 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:48:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:48:46,387 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:49:52,039 WARN L207 SmtUtils]: Spent 1.09 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:51:07,141 WARN L207 SmtUtils]: Spent 37.18 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:51:07,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:51:07 BoogieIcfgContainer [2021-10-13 00:51:07,391 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:51:07,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:51:07,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:51:07,393 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:51:07,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:44" (3/4) ... [2021-10-13 00:51:07,397 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:51:07,517 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:51:07,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:51:07,519 INFO L168 Benchmark]: Toolchain (without parser) took 144806.31 ms. Allocated memory was 104.9 MB in the beginning and 167.8 MB in the end (delta: 62.9 MB). Free memory was 75.3 MB in the beginning and 105.7 MB in the end (delta: -30.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:07,520 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 104.9 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:51:07,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.13 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 75.0 MB in the beginning and 102.4 MB in the end (delta: -27.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:07,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.12 ms. Allocated memory is still 136.3 MB. Free memory was 102.4 MB in the beginning and 98.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:07,522 INFO L168 Benchmark]: Boogie Preprocessor took 62.68 ms. Allocated memory is still 136.3 MB. Free memory was 98.9 MB in the beginning and 96.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:07,523 INFO L168 Benchmark]: RCFGBuilder took 1252.59 ms. Allocated memory is still 136.3 MB. Free memory was 96.5 MB in the beginning and 98.8 MB in the end (delta: -2.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:07,524 INFO L168 Benchmark]: BuchiAutomizer took 142624.33 ms. Allocated memory was 136.3 MB in the beginning and 167.8 MB in the end (delta: 31.5 MB). Free memory was 98.8 MB in the beginning and 107.8 MB in the end (delta: -9.1 MB). Peak memory consumption was 94.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:07,525 INFO L168 Benchmark]: Witness Printer took 125.59 ms. Allocated memory is still 167.8 MB. Free memory was 107.8 MB in the beginning and 105.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:07,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 104.9 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 634.13 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 75.0 MB in the beginning and 102.4 MB in the end (delta: -27.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.12 ms. Allocated memory is still 136.3 MB. Free memory was 102.4 MB in the beginning and 98.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.68 ms. Allocated memory is still 136.3 MB. Free memory was 98.9 MB in the beginning and 96.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1252.59 ms. Allocated memory is still 136.3 MB. Free memory was 96.5 MB in the beginning and 98.8 MB in the end (delta: -2.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 142624.33 ms. Allocated memory was 136.3 MB in the beginning and 167.8 MB in the end (delta: 31.5 MB). Free memory was 98.8 MB in the beginning and 107.8 MB in the end (delta: -9.1 MB). Peak memory consumption was 94.7 MB. Max. memory is 16.1 GB. * Witness Printer took 125.59 ms. Allocated memory is still 167.8 MB. Free memory was 107.8 MB in the beginning and 105.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 193 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 142.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 142.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 32.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 193 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 153 SDtfs, 149 SDslu, 140 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 268]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11902} State at position 1 is {NULL=11904, NULL=0, NULL=0, NULL=0, NULL=11902, NULL=11928, NULL=0, NULL=0, NULL=11925, retValue_acc=0, NULL=11930, tmp=0, NULL=11919, methaneLevelCritical=0, tmp=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21835ad9=0, NULL=11913, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=11906, NULL=11908, NULL=11907, NULL=11918, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=11915, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@101f761c=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=11929, NULL=0, NULL=0, NULL=11917, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f410ba2=0, \result=1, head=0, pumpRunning=0, NULL=11903, \result=0, NULL=11912, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e6f0200=74, NULL=11910, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ef3b6f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10fb7ffc=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32971653=0, NULL=11927, NULL=0, retValue_acc=1, NULL=0, NULL=0, NULL=11905, NULL=11924, NULL=0, NULL=11920, tmp___2=74, NULL=0, tmp___0=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=11926, NULL=11916, NULL=11923, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6beed58e=0, NULL=11914, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3166bf6a=0, NULL=0, NULL=0, NULL=11921, NULL=11922, NULL=11911, NULL=11909, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L496] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L731] int cleanupTimeShifts = 4; [L830] int methAndRunningLastTime ; [L879] int waterLevel = 1; [L880] int methaneLevelCritical = 0; [L806] int retValue_acc ; [L807] int tmp ; [L722] int retValue_acc ; [L725] retValue_acc = 1 [L726] return (retValue_acc); [L813] tmp = valid_product() [L815] COND TRUE \read(tmp) [L835] methAndRunningLastTime = 0 [L259] int splverifierCounter ; [L260] int tmp ; [L261] int tmp___0 ; [L262] int tmp___1 ; [L263] int tmp___2 ; [L266] splverifierCounter = 0 Loop: [L268] COND TRUE 1 [L270] COND TRUE splverifierCounter < 4 [L276] tmp = __VERIFIER_nondet_int() [L278] COND FALSE !(\read(tmp)) [L286] tmp___0 = __VERIFIER_nondet_int() [L288] COND FALSE !(\read(tmp___0)) [L296] tmp___2 = __VERIFIER_nondet_int() [L298] COND TRUE \read(tmp___2) [L250] systemActive = 1 [L61] COND FALSE !(\read(pumpRunning)) [L68] COND TRUE \read(systemActive) [L116] int tmp ; [L119] COND FALSE !(\read(pumpRunning)) [L90] int tmp ; [L93] COND FALSE !(\read(pumpRunning)) [L840] int tmp ; [L841] int tmp___0 ; [L918] int retValue_acc ; [L921] retValue_acc = methaneLevelCritical [L922] return (retValue_acc); [L845] tmp = isMethaneLevelCritical() [L847] COND FALSE !(\read(tmp)) [L863] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:51:07,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ae845-ff97-4e2e-8c7a-64431bfaba8b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...