./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 690d9fe310e470fa54abb43d61d054401e7692fe0de366fc3accadb640a888e5 .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:18:59,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:18:59,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:18:59,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:18:59,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:18:59,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:18:59,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:18:59,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:18:59,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:18:59,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:18:59,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:18:59,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:18:59,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:18:59,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:18:59,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:18:59,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:18:59,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:18:59,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:18:59,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:18:59,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:18:59,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:18:59,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:18:59,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:18:59,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:18:59,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:18:59,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:18:59,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:18:59,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:18:59,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:18:59,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:18:59,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:18:59,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:18:59,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:18:59,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:18:59,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:18:59,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:18:59,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:18:59,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:18:59,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:18:59,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:18:59,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:18:59,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:18:59,902 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:18:59,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:18:59,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:18:59,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:18:59,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:18:59,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:18:59,908 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:18:59,909 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:18:59,909 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:18:59,909 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:18:59,910 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:18:59,911 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:18:59,911 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:18:59,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:18:59,912 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:18:59,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:18:59,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:18:59,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:18:59,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:18:59,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:18:59,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:18:59,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:18:59,914 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:18:59,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:18:59,914 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:18:59,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:18:59,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:18:59,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:18:59,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:18:59,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:18:59,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:18:59,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:18:59,920 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:18:59,920 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_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 690d9fe310e470fa54abb43d61d054401e7692fe0de366fc3accadb640a888e5 [2021-10-21 19:19:00,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:19:00,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:19:00,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:19:00,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:19:00,306 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:19:00,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2021-10-21 19:19:00,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/data/ca3769d88/35c7297f271146fb86ffd3b463190416/FLAG94050a635 [2021-10-21 19:19:01,188 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:19:01,193 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2021-10-21 19:19:01,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/data/ca3769d88/35c7297f271146fb86ffd3b463190416/FLAG94050a635 [2021-10-21 19:19:01,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/data/ca3769d88/35c7297f271146fb86ffd3b463190416 [2021-10-21 19:19:01,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:19:01,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:19:01,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:19:01,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:19:01,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:19:01,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:19:01" (1/1) ... [2021-10-21 19:19:01,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2371048e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:01, skipping insertion in model container [2021-10-21 19:19:01,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:19:01" (1/1) ... [2021-10-21 19:19:01,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:19:01,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:19:01,801 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_b60c419c-8152-441c-a16f-0df2fd9ed044/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c[6162,6175] [2021-10-21 19:19:01,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:19:01,970 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:19:02,057 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_b60c419c-8152-441c-a16f-0df2fd9ed044/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c[6162,6175] [2021-10-21 19:19:02,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:19:02,146 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:19:02,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02 WrapperNode [2021-10-21 19:19:02,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:19:02,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:19:02,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:19:02,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:19:02,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:19:02,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:19:02,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:19:02,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:19:02,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:19:02,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:19:02,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:19:02,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:19:02,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (1/1) ... [2021-10-21 19:19:02,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:19:02,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:19:02,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:19:02,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:19:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:19:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:19:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:19:02,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:19:03,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:19:03,605 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-21 19:19:03,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:19:03 BoogieIcfgContainer [2021-10-21 19:19:03,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:19:03,611 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:19:03,611 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:19:03,616 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:19:03,617 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:19:03,617 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:19:01" (1/3) ... [2021-10-21 19:19:03,619 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aa5a7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:19:03, skipping insertion in model container [2021-10-21 19:19:03,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:19:03,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:19:02" (2/3) ... [2021-10-21 19:19:03,621 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aa5a7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:19:03, skipping insertion in model container [2021-10-21 19:19:03,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:19:03,621 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:19:03" (3/3) ... [2021-10-21 19:19:03,624 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2021-10-21 19:19:03,713 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:19:03,714 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:19:03,714 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:19:03,714 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:19:03,714 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:19:03,715 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:19:03,715 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:19:03,715 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:19:03,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:19:03,786 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-21 19:19:03,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:19:03,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:19:03,795 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:19:03,795 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:19:03,796 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:19:03,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:19:03,803 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-21 19:19:03,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:19:03,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:19:03,805 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:19:03,805 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:19:03,812 INFO L791 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);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~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(21);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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0; 42#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 71#L384true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 51#L392true main_#t~ret75 := valid_product_#res;main_~tmp~5 := main_#t~ret75;havoc main_#t~ret75; 67#L856true assume 0 != main_~tmp~5; 20#L831true ~methAndRunningLastTime~0 := 0; 26#L876true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 28#L887-1true [2021-10-21 19:19:03,813 INFO L793 eck$LassoCheckResult]: Loop: 28#L887-1true assume !false; 62#L303true assume test_~splverifierCounter~0 < 4; 30#L304true test_~tmp~1 := test_#t~nondet35;havoc test_#t~nondet35; 65#L312true assume !(0 != test_~tmp~1); 33#L312-1true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 16#L322true assume !(0 != test_~tmp___0~0); 72#L322-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 27#L332true assume 0 != test_~tmp___2~0; 29#L338-1true assume !(0 != ~pumpRunning~0); 31#L150true assume !(0 != ~systemActive~0); 7#L157true havoc __utac_acc__Specification2_spec__2_#t~ret76, __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 50#L99-1true __utac_acc__Specification2_spec__2_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret76;havoc __utac_acc__Specification2_spec__2_#t~ret76; 63#L887true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 28#L887-1true [2021-10-21 19:19:03,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:19:03,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:19:03,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:19:03,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132578430] [2021-10-21 19:19:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:19:03,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:19:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:04,123 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:19:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:04,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:19:04,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:19:04,345 INFO L82 PathProgramCache]: Analyzing trace with hash 10972499, now seen corresponding path program 1 times [2021-10-21 19:19:04,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:19:04,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361857320] [2021-10-21 19:19:04,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:19:04,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:19:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:04,357 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:19:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:04,370 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:19:04,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:19:04,373 INFO L82 PathProgramCache]: Analyzing trace with hash 844269005, now seen corresponding path program 1 times [2021-10-21 19:19:04,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:19:04,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970554607] [2021-10-21 19:19:04,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:19:04,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:19:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:19:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:19:04,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:19:04,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970554607] [2021-10-21 19:19:04,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970554607] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:19:04,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:19:04,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:19:04,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785927802] [2021-10-21 19:19:04,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:19:04,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:19:04,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:19:04,897 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:19:05,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:19:05,200 INFO L93 Difference]: Finished difference Result 190 states and 265 transitions. [2021-10-21 19:19:05,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:19:05,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 265 transitions. [2021-10-21 19:19:05,247 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 119 [2021-10-21 19:19:05,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 169 states and 244 transitions. [2021-10-21 19:19:05,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2021-10-21 19:19:05,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2021-10-21 19:19:05,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 244 transitions. [2021-10-21 19:19:05,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:19:05,260 INFO L681 BuchiCegarLoop]: Abstraction has 169 states and 244 transitions. [2021-10-21 19:19:05,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 244 transitions. [2021-10-21 19:19:05,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 109. [2021-10-21 19:19:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.4403669724770642) internal successors, (157), 108 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:19:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2021-10-21 19:19:05,303 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 157 transitions. [2021-10-21 19:19:05,303 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 157 transitions. [2021-10-21 19:19:05,303 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:19:05,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 157 transitions. [2021-10-21 19:19:05,306 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2021-10-21 19:19:05,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:19:05,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:19:05,308 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:19:05,308 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:19:05,308 INFO L791 eck$LassoCheckResult]: Stem: 340#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);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~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(21);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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0; 329#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 330#L384 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 336#L392 main_#t~ret75 := valid_product_#res;main_~tmp~5 := main_#t~ret75;havoc main_#t~ret75; 337#L856 assume 0 != main_~tmp~5; 305#L831 ~methAndRunningLastTime~0 := 0; 306#L876 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 284#L887-1 [2021-10-21 19:19:05,308 INFO L793 eck$LassoCheckResult]: Loop: 284#L887-1 assume !false; 317#L303 assume test_~splverifierCounter~0 < 4; 320#L304 test_~tmp~1 := test_#t~nondet35;havoc test_#t~nondet35; 321#L312 assume !(0 != test_~tmp~1); 286#L312-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 301#L322 assume !(0 != test_~tmp___0~0); 281#L322-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 314#L332 assume 0 != test_~tmp___2~0; 316#L338-1 assume !(0 != ~pumpRunning~0); 319#L150 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 322#L182 assume !(0 != ~pumpRunning~0); 287#L157 havoc __utac_acc__Specification2_spec__2_#t~ret76, __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 288#L99-1 __utac_acc__Specification2_spec__2_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret76;havoc __utac_acc__Specification2_spec__2_#t~ret76; 335#L887 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 284#L887-1 [2021-10-21 19:19:05,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:19:05,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:19:05,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:19:05,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525674876] [2021-10-21 19:19:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:19:05,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:19:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:05,374 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:19:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:05,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:19:05,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:19:05,455 INFO L82 PathProgramCache]: Analyzing trace with hash 319619009, now seen corresponding path program 1 times [2021-10-21 19:19:05,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:19:05,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855853934] [2021-10-21 19:19:05,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:19:05,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:19:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:05,463 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:19:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:05,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:19:05,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:19:05,479 INFO L82 PathProgramCache]: Analyzing trace with hash 382006919, now seen corresponding path program 1 times [2021-10-21 19:19:05,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:19:05,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171421065] [2021-10-21 19:19:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:19:05,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:19:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:05,540 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:19:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:19:05,638 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:20:18,498 WARN L207 SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:21:29,024 WARN L207 SmtUtils]: Spent 34.94 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:21:29,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:21:29 BoogieIcfgContainer [2021-10-21 19:21:29,247 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:21:29,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:21:29,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:21:29,251 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:21:29,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:19:03" (3/4) ... [2021-10-21 19:21:29,255 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:21:29,313 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:21:29,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:21:29,315 INFO L168 Benchmark]: Toolchain (without parser) took 147880.79 ms. Allocated memory was 121.6 MB in the beginning and 159.4 MB in the end (delta: 37.7 MB). Free memory was 86.2 MB in the beginning and 106.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:29,316 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 96.5 MB. Free memory was 71.0 MB in the beginning and 71.0 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:21:29,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.47 ms. Allocated memory is still 121.6 MB. Free memory was 85.9 MB in the beginning and 89.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:29,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.47 ms. Allocated memory is still 121.6 MB. Free memory was 89.9 MB in the beginning and 86.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:29,318 INFO L168 Benchmark]: Boogie Preprocessor took 46.84 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 84.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:29,319 INFO L168 Benchmark]: RCFGBuilder took 1330.58 ms. Allocated memory is still 121.6 MB. Free memory was 84.4 MB in the beginning and 47.9 MB in the end (delta: 36.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:29,320 INFO L168 Benchmark]: BuchiAutomizer took 145637.05 ms. Allocated memory was 121.6 MB in the beginning and 159.4 MB in the end (delta: 37.7 MB). Free memory was 47.9 MB in the beginning and 108.9 MB in the end (delta: -61.0 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:29,320 INFO L168 Benchmark]: Witness Printer took 65.06 ms. Allocated memory is still 159.4 MB. Free memory was 108.9 MB in the beginning and 106.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:29,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 96.5 MB. Free memory was 71.0 MB in the beginning and 71.0 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 711.47 ms. Allocated memory is still 121.6 MB. Free memory was 85.9 MB in the beginning and 89.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.47 ms. Allocated memory is still 121.6 MB. Free memory was 89.9 MB in the beginning and 86.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.84 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 84.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1330.58 ms. Allocated memory is still 121.6 MB. Free memory was 84.4 MB in the beginning and 47.9 MB in the end (delta: 36.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 145637.05 ms. Allocated memory was 121.6 MB in the beginning and 159.4 MB in the end (delta: 37.7 MB). Free memory was 47.9 MB in the beginning and 108.9 MB in the end (delta: -61.0 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. * Witness Printer took 65.06 ms. Allocated memory is still 159.4 MB. Free memory was 108.9 MB in the beginning and 106.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 145.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 144.9s. Construction of modules took 0.1s. 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 25.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 60 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 96 SDtfs, 444 SDslu, 470 SDs, 0 SdLazy, 38 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 199.2ms 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: 302]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=27072, NULL=0, NULL=1, NULL=27085, NULL=0, NULL=0, NULL=27090, retValue_acc=0, NULL=27075, methaneLevelCritical=0, NULL=27080, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41dcc1aa=0, NULL=27102, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=27100, NULL=27083, cleanupTimeShifts=4, NULL=27097, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52e8d8cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18d9687d=65, NULL=27073, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@239715ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d1604e=0, NULL=0, systemActive=1, waterLevel=1, NULL=27089, NULL=0, NULL=0, NULL=0, NULL=27098, NULL=0, NULL=27076, NULL=0, tmp___0=0, NULL=27091, NULL=0, NULL=27082, \result=1, head=0, pumpRunning=0, \result=0, NULL=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75a62b92=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@408e1042=0, retValue_acc=1, NULL=27078, NULL=27101, NULL=27081, NULL=0, NULL=0, NULL=27074, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ec1e891=0, tmp___2=65, tmp___0=0, NULL=27084, NULL=27095, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=27099, NULL=27070, tmp=0, NULL=27079, head=0, NULL=0, NULL=0, NULL=27077, NULL=0, NULL=0, NULL=27071, NULL=27094, NULL=0, NULL=27065, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L575] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L772] int cleanupTimeShifts = 4; [L870] int methAndRunningLastTime ; [L847] int retValue_acc ; [L848] int tmp ; [L388] int retValue_acc ; [L391] retValue_acc = 1 [L392] return (retValue_acc); [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L875] methAndRunningLastTime = 0 [L293] int splverifierCounter ; [L294] int tmp ; [L295] int tmp___0 ; [L296] int tmp___1 ; [L297] int tmp___2 ; [L300] splverifierCounter = 0 Loop: [L302] COND TRUE 1 [L304] COND TRUE splverifierCounter < 4 [L310] tmp = __VERIFIER_nondet_int() [L312] COND FALSE !(\read(tmp)) [L320] tmp___0 = __VERIFIER_nondet_int() [L322] COND FALSE !(\read(tmp___0)) [L330] tmp___2 = __VERIFIER_nondet_int() [L332] COND TRUE \read(tmp___2) [L150] COND FALSE !(\read(pumpRunning)) [L157] COND TRUE \read(systemActive) [L179] int tmp ; [L182] COND FALSE !(\read(pumpRunning)) [L880] int tmp ; [L881] int tmp___0 ; [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L885] tmp = isMethaneLevelCritical() [L887] COND FALSE !(\read(tmp)) [L903] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:21:29,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60c419c-8152-441c-a16f-0df2fd9ed044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...