./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product06.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_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/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_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/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_2ae43498-0168-4b76-9a76-2548a18c8691/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 fd1c1c796b8250cbf231dbc704ae45a744144aa0430ce583780a644c1bb59bd9 .................................................................................................................................................................................................................................................................................................................................................................................. 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 19:48:42,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:48:42,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:48:42,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:48:42,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:48:42,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:48:42,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:48:42,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:48:42,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:48:42,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:48:42,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:48:42,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:48:42,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:48:42,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:48:42,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:48:42,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:48:42,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:48:42,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:48:42,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:48:42,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:48:42,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:48:42,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:48:42,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:48:42,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:48:42,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:48:42,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:48:42,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:48:42,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:48:42,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:48:42,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:48:42,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:48:42,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:48:42,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:48:42,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:48:42,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:48:42,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:48:42,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:48:42,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:48:42,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:48:42,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:48:42,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:48:42,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:48:42,811 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:48:42,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:48:42,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:48:42,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:48:42,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:48:42,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:48:42,821 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:48:42,822 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:48:42,822 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:48:42,822 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:48:42,824 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:48:42,824 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:48:42,824 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:48:42,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:48:42,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:48:42,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:48:42,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:48:42,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:48:42,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:48:42,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:48:42,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:48:42,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:48:42,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:48:42,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:48:42,827 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:48:42,828 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:48:42,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:48:42,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:48:42,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:48:42,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:48:42,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:48:42,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:48:42,832 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:48:42,832 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_2ae43498-0168-4b76-9a76-2548a18c8691/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd1c1c796b8250cbf231dbc704ae45a744144aa0430ce583780a644c1bb59bd9 [2021-10-21 19:48:43,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:48:43,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:48:43,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:48:43,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:48:43,178 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:48:43,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c [2021-10-21 19:48:43,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/data/7ff21c893/4b7e412df66448b3a25cce6a440dfa63/FLAGed14e085a [2021-10-21 19:48:43,862 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:48:43,862 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c [2021-10-21 19:48:43,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/data/7ff21c893/4b7e412df66448b3a25cce6a440dfa63/FLAGed14e085a [2021-10-21 19:48:44,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/data/7ff21c893/4b7e412df66448b3a25cce6a440dfa63 [2021-10-21 19:48:44,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:48:44,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:48:44,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:48:44,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:48:44,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:48:44,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8efb22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44, skipping insertion in model container [2021-10-21 19:48:44,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:48:44,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:48:44,524 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_2ae43498-0168-4b76-9a76-2548a18c8691/sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c[16447,16460] [2021-10-21 19:48:44,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:48:44,556 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:48:44,680 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_2ae43498-0168-4b76-9a76-2548a18c8691/sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c[16447,16460] [2021-10-21 19:48:44,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:48:44,721 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:48:44,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44 WrapperNode [2021-10-21 19:48:44,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:48:44,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:48:44,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:48:44,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:48:44,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:48:44,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:48:44,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:48:44,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:48:44,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:48:44,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:48:44,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:48:44,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:48:44,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (1/1) ... [2021-10-21 19:48:44,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:48:44,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:48:44,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:48:44,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:48:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:48:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:48:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:48:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:48:45,802 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:48:45,803 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-10-21 19:48:45,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:45 BoogieIcfgContainer [2021-10-21 19:48:45,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:48:45,807 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:48:45,807 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:48:45,816 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:48:45,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:48:45,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:48:44" (1/3) ... [2021-10-21 19:48:45,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e392766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:48:45, skipping insertion in model container [2021-10-21 19:48:45,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:48:45,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:44" (2/3) ... [2021-10-21 19:48:45,821 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e392766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:48:45, skipping insertion in model container [2021-10-21 19:48:45,821 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:48:45,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:45" (3/3) ... [2021-10-21 19:48:45,823 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product06.cil.c [2021-10-21 19:48:45,886 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:48:45,887 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:48:45,887 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:48:45,887 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:48:45,887 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:48:45,887 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:48:45,888 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:48:45,888 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:48:45,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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 19:48:45,943 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-21 19:48:45,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:48:45,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:48:45,952 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:45,953 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:45,953 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:48:45,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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 19:48:45,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-21 19:48:45,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:48:45,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:48:45,971 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:45,971 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:45,984 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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 46#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 69#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 30#L83true main_#t~ret77 := valid_product_#res;main_~tmp~6 := main_#t~ret77;havoc main_#t~ret77; 24#L888true assume 0 != main_~tmp~6; 51#L864true ~methAndRunningLastTime~0 := 0; 64#L397true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 26#L408-1true [2021-10-21 19:48:45,985 INFO L793 eck$LassoCheckResult]: Loop: 26#L408-1true assume !false; 23#L104true assume test_~splverifierCounter~0 < 4; 22#L105true test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 49#L113true assume !(0 != test_~tmp~0); 20#L113-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 28#L123true assume !(0 != test_~tmp___0~0); 37#L123-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 48#L133true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 54#L141-2true assume !(0 != ~pumpRunning~0); 5#L175true assume !(0 != ~systemActive~0); 39#L182true havoc __utac_acc__Specification2_spec__2_#t~ret40, __utac_acc__Specification2_spec__2_#t~ret41, __utac_acc__Specification2_spec__2_~tmp~2, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~2;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 63#L353-1true __utac_acc__Specification2_spec__2_#t~ret40 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~2 := __utac_acc__Specification2_spec__2_#t~ret40;havoc __utac_acc__Specification2_spec__2_#t~ret40; 45#L408true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2);~methAndRunningLastTime~0 := 0; 26#L408-1true [2021-10-21 19:48:45,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:48:45,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:48:46,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:48:46,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651013174] [2021-10-21 19:48:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:48:46,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:48:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:48:46,298 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:48:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:48:46,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:48:46,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:48:46,490 INFO L82 PathProgramCache]: Analyzing trace with hash 3338059, now seen corresponding path program 1 times [2021-10-21 19:48:46,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:48:46,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46156969] [2021-10-21 19:48:46,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:48:46,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:48:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:48:46,589 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 19:48:46,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:48:46,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46156969] [2021-10-21 19:48:46,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46156969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:48:46,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:48:46,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:48:46,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444250631] [2021-10-21 19:48:46,601 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:48:46,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:48:46,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:48:46,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:48:46,633 INFO L87 Difference]: Start difference. First operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 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) [2021-10-21 19:48:46,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:48:46,713 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2021-10-21 19:48:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:48:46,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 96 transitions. [2021-10-21 19:48:46,720 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 19:48:46,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 63 states and 88 transitions. [2021-10-21 19:48:46,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2021-10-21 19:48:46,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2021-10-21 19:48:46,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 88 transitions. [2021-10-21 19:48:46,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:48:46,734 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-10-21 19:48:46,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 88 transitions. [2021-10-21 19:48:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-21 19:48:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 62 states have internal predecessors, (88), 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 19:48:46,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2021-10-21 19:48:46,782 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-10-21 19:48:46,782 INFO L587 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-10-21 19:48:46,783 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:48:46,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2021-10-21 19:48:46,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 19:48:46,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:48:46,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:48:46,788 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:46,788 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:46,789 INFO L791 eck$LassoCheckResult]: Stem: 209#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 203#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 204#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 187#L83 main_#t~ret77 := valid_product_#res;main_~tmp~6 := main_#t~ret77;havoc main_#t~ret77; 180#L888 assume 0 != main_~tmp~6; 181#L864 ~methAndRunningLastTime~0 := 0; 207#L397 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 184#L408-1 [2021-10-21 19:48:46,790 INFO L793 eck$LassoCheckResult]: Loop: 184#L408-1 assume !false; 179#L104 assume test_~splverifierCounter~0 < 4; 177#L105 test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 178#L113 assume !(0 != test_~tmp~0); 173#L113-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 174#L123 assume !(0 != test_~tmp___0~0); 186#L123-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 196#L133 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 206#L141-2 assume !(0 != ~pumpRunning~0); 151#L175 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 152#L207 assume !(0 != ~pumpRunning~0); 153#L182 havoc __utac_acc__Specification2_spec__2_#t~ret40, __utac_acc__Specification2_spec__2_#t~ret41, __utac_acc__Specification2_spec__2_~tmp~2, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~2;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 198#L353-1 __utac_acc__Specification2_spec__2_#t~ret40 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~2 := __utac_acc__Specification2_spec__2_#t~ret40;havoc __utac_acc__Specification2_spec__2_#t~ret40; 201#L408 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2);~methAndRunningLastTime~0 := 0; 184#L408-1 [2021-10-21 19:48:46,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:48:46,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:48:46,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:48:46,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605035862] [2021-10-21 19:48:46,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:48:46,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:48:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:48:46,903 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:48:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:48:47,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:48:47,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:48:47,036 INFO L82 PathProgramCache]: Analyzing trace with hash 82951361, now seen corresponding path program 1 times [2021-10-21 19:48:47,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:48:47,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702809706] [2021-10-21 19:48:47,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:48:47,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:48:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:48:47,055 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:48:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:48:47,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:48:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:48:47,070 INFO L82 PathProgramCache]: Analyzing trace with hash 145339271, now seen corresponding path program 1 times [2021-10-21 19:48:47,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:48:47,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513403285] [2021-10-21 19:48:47,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:48:47,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:48:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:48:47,160 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:48:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:48:47,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:47,862 WARN L207 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:50:49,369 WARN L207 SmtUtils]: Spent 29.78 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:50:49,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:50:49 BoogieIcfgContainer [2021-10-21 19:50:49,542 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:50:49,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:50:49,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:50:49,544 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:50:49,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:45" (3/4) ... [2021-10-21 19:50:49,547 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:50:49,682 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:50:49,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:50:49,684 INFO L168 Benchmark]: Toolchain (without parser) took 125552.69 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 57.6 MB in the beginning and 44.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:50:49,685 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 100.7 MB. Free memory is still 75.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:50:49,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.44 ms. Allocated memory is still 100.7 MB. Free memory was 57.3 MB in the beginning and 68.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:50:49,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.31 ms. Allocated memory is still 100.7 MB. Free memory was 68.2 MB in the beginning and 65.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:50:49,688 INFO L168 Benchmark]: Boogie Preprocessor took 70.88 ms. Allocated memory is still 100.7 MB. Free memory was 65.1 MB in the beginning and 63.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:50:49,689 INFO L168 Benchmark]: RCFGBuilder took 914.16 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 63.1 MB in the beginning and 89.2 MB in the end (delta: -26.1 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:50:49,689 INFO L168 Benchmark]: BuchiAutomizer took 123735.69 ms. Allocated memory is still 121.6 MB. Free memory was 89.2 MB in the beginning and 47.7 MB in the end (delta: 41.5 MB). Peak memory consumption was 68.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:50:49,690 INFO L168 Benchmark]: Witness Printer took 139.32 ms. Allocated memory is still 121.6 MB. Free memory was 47.7 MB in the beginning and 44.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:50:49,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 100.7 MB. Free memory is still 75.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 574.44 ms. Allocated memory is still 100.7 MB. Free memory was 57.3 MB in the beginning and 68.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.31 ms. Allocated memory is still 100.7 MB. Free memory was 68.2 MB in the beginning and 65.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.88 ms. Allocated memory is still 100.7 MB. Free memory was 65.1 MB in the beginning and 63.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 914.16 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 63.1 MB in the beginning and 89.2 MB in the end (delta: -26.1 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 123735.69 ms. Allocated memory is still 121.6 MB. Free memory was 89.2 MB in the beginning and 47.7 MB in the end (delta: 41.5 MB). Peak memory consumption was 68.6 MB. Max. memory is 16.1 GB. * Witness Printer took 139.32 ms. Allocated memory is still 121.6 MB. Free memory was 47.7 MB in the beginning and 44.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 63 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 123.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 123.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 31.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 63 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 93 SDtfs, 93 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.9ms 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: 103]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=26373} State at position 1 is {NULL=52291, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b2cb678=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25f69a3f=0, NULL=26373, NULL=62385, NULL=0, NULL=0, NULL=62392, retValue_acc=0, NULL=62384, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29ecbb38=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d4d106e=0, NULL=62378, methaneLevelCritical=0, NULL=62381, NULL=0, NULL=0, NULL=52295, tmp___1=0, NULL=26374, NULL=62395, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e84354e=0, NULL=62393, cleanupTimeShifts=4, tmp=0, NULL=62379, NULL=52293, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@730404ff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58a6f29a=0, NULL=62380, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=62391, retValue_acc=0, tmp___0=0, NULL=62382, NULL=52289, \result=1, head=0, pumpRunning=0, \result=0, NULL=52292, NULL=62388, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=52294, NULL=0, NULL=62396, NULL=0, NULL=0, NULL=0, NULL=0, NULL=62394, retValue_acc=1, tmp___2=68, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=62387, NULL=52290, NULL=62390, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a8bde59=0, head=0, NULL=62386, NULL=62383, NULL=0, NULL=0, NULL=0, NULL=62377, tmp=0, NULL=62389} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L167] int pumpRunning = 0; [L168] int systemActive = 1; [L310] int waterLevel = 1; [L311] int methaneLevelCritical = 0; [L391] int methAndRunningLastTime ; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L805] int cleanupTimeShifts = 4; [L879] int retValue_acc ; [L880] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L886] tmp = valid_product() [L888] COND TRUE \read(tmp) [L396] methAndRunningLastTime = 0 [L94] int splverifierCounter ; [L95] int tmp ; [L96] int tmp___0 ; [L97] int tmp___1 ; [L98] int tmp___2 ; [L101] splverifierCounter = 0 Loop: [L103] COND TRUE 1 [L105] COND TRUE splverifierCounter < 4 [L111] tmp = __VERIFIER_nondet_int() [L113] COND FALSE !(\read(tmp)) [L121] tmp___0 = __VERIFIER_nondet_int() [L123] COND FALSE !(\read(tmp___0)) [L131] tmp___2 = __VERIFIER_nondet_int() [L133] COND TRUE \read(tmp___2) [L304] systemActive = 1 [L175] COND FALSE !(\read(pumpRunning)) [L182] COND TRUE \read(systemActive) [L204] int tmp ; [L207] COND FALSE !(\read(pumpRunning)) [L401] int tmp ; [L402] int tmp___0 ; [L349] int retValue_acc ; [L352] retValue_acc = methaneLevelCritical [L353] return (retValue_acc); [L406] tmp = isMethaneLevelCritical() [L408] COND FALSE !(\read(tmp)) [L424] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:50:49,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ae43498-0168-4b76-9a76-2548a18c8691/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...