./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg --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 1a14cd82fb4a7a8631dbac962b884aa1ac25841cd2c28c7e6e05438cc00132d3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-b2eff8b [2021-10-28 08:45:11,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:45:11,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:45:11,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:45:11,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:45:11,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:45:11,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:45:11,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:45:11,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:45:11,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:45:11,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:45:11,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:45:11,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:45:11,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:45:11,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:45:11,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:45:11,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:45:11,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:45:11,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:45:11,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:45:11,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:45:11,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:45:11,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:45:11,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:45:11,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:45:11,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:45:11,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:45:11,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:45:11,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:45:11,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:45:11,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:45:11,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:45:11,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:45:11,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:45:11,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:45:11,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:45:11,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:45:11,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:45:11,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:45:11,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:45:11,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:45:11,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:45:11,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:45:11,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:45:11,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:45:11,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:45:11,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:45:11,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:45:11,914 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:45:11,914 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:45:11,915 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:45:11,915 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:45:11,915 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:45:11,916 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:45:11,916 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:45:11,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:45:11,916 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:45:11,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:45:11,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:45:11,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:45:11,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:45:11,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:45:11,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:45:11,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:45:11,918 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:45:11,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:45:11,919 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:45:11,919 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:45:11,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:45:11,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:45:11,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:45:11,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:45:11,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:45:11,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:45:11,922 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:45:11,922 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_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a14cd82fb4a7a8631dbac962b884aa1ac25841cd2c28c7e6e05438cc00132d3 [2021-10-28 08:45:12,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:45:12,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:45:12,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:45:12,207 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:45:12,207 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:45:12,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-10-28 08:45:12,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/data/a13de61b1/7cbc2440d4324aaeb38b6a31e4423a76/FLAGae688dbe7 [2021-10-28 08:45:12,827 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:45:12,828 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-10-28 08:45:12,854 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/data/a13de61b1/7cbc2440d4324aaeb38b6a31e4423a76/FLAGae688dbe7 [2021-10-28 08:45:13,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/data/a13de61b1/7cbc2440d4324aaeb38b6a31e4423a76 [2021-10-28 08:45:13,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:45:13,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:45:13,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:45:13,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:45:13,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:45:13,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:13,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de13482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13, skipping insertion in model container [2021-10-28 08:45:13,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:13,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:45:13,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:45:13,537 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_696520c4-b416-4d30-a0e6-c8a8597a8215/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c[20029,20042] [2021-10-28 08:45:13,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:45:13,570 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:45:13,695 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_696520c4-b416-4d30-a0e6-c8a8597a8215/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c[20029,20042] [2021-10-28 08:45:13,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:45:13,734 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:45:13,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13 WrapperNode [2021-10-28 08:45:13,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:45:13,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:45:13,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:45:13,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:45:13,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:13,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:13,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:45:13,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:45:13,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:45:13,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:45:13,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:13,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:13,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:13,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:13,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:14,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:14,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:14,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:45:14,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:45:14,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:45:14,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:45:14,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (1/1) ... [2021-10-28 08:45:14,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:45:14,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:14,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:45:14,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:45:14,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:45:14,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:45:14,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:45:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:45:15,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:45:15,858 INFO L299 CfgBuilder]: Removed 906 assume(true) statements. [2021-10-28 08:45:15,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:15 BoogieIcfgContainer [2021-10-28 08:45:15,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:45:15,864 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:45:15,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:45:15,869 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:45:15,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:45:15,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:45:13" (1/3) ... [2021-10-28 08:45:15,873 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b580a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:45:15, skipping insertion in model container [2021-10-28 08:45:15,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:45:15,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:13" (2/3) ... [2021-10-28 08:45:15,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b580a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:45:15, skipping insertion in model container [2021-10-28 08:45:15,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:45:15,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:15" (3/3) ... [2021-10-28 08:45:15,875 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2021-10-28 08:45:15,934 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:45:15,934 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:45:15,934 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:45:15,934 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:45:15,934 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:45:15,934 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:45:15,934 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:45:15,935 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:45:15,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 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) [2021-10-28 08:45:16,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 309 [2021-10-28 08:45:16,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:45:16,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:45:16,029 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:16,029 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:16,029 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:45:16,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 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) [2021-10-28 08:45:16,050 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 309 [2021-10-28 08:45:16,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:45:16,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:45:16,052 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:16,052 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:16,058 INFO L791 eck$LassoCheckResult]: Stem: 461#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 385#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 100#L979true havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 469#L954true select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 279#L954-1true select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 432#L954-2true select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 106#L954-3true select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 197#L954-4true select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 66#L954-5true select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 163#L971true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 313#L987true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 334#L506true assume 0 != main_~tmp~3; 414#L479true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 26#L1009-1true [2021-10-28 08:45:16,059 INFO L793 eck$LassoCheckResult]: Loop: 26#L1009-1true assume !false; 298#L541true assume test_~splverifierCounter~0 < 4; 357#L542true test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 354#L550true assume !(0 != test_~tmp~4); 37#L550-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 239#L560true assume !(0 != test_~tmp___0~0); 441#L560-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 254#L570true assume 0 != test_~tmp___2~0; 344#L571true assume 0 != ~__SELECTED_FEATURE_startCommand~0;~systemActive~0 := 1; 249#L582-1true assume !(0 != ~pumpRunning~0); 222#L623true assume !(0 != ~systemActive~0); 300#L630true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 175#L1080-10true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 397#L1003true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 26#L1009-1true [2021-10-28 08:45:16,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:16,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 1 times [2021-10-28 08:45:16,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:16,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123004105] [2021-10-28 08:45:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:16,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:16,315 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:45:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:16,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:45:16,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:16,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1157828172, now seen corresponding path program 1 times [2021-10-28 08:45:16,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:16,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500682150] [2021-10-28 08:45:16,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:16,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:16,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:16,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:16,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500682150] [2021-10-28 08:45:16,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500682150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:16,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:16,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:45:16,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103385298] [2021-10-28 08:45:16,618 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:45:16,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:16,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:45:16,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:45:16,640 INFO L87 Difference]: Start difference. First operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 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 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-28 08:45:16,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:16,730 INFO L93 Difference]: Finished difference Result 933 states and 1449 transitions. [2021-10-28 08:45:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:45:16,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 933 states and 1449 transitions. [2021-10-28 08:45:16,746 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 614 [2021-10-28 08:45:16,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 933 states to 919 states and 1434 transitions. [2021-10-28 08:45:16,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 919 [2021-10-28 08:45:16,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 919 [2021-10-28 08:45:16,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 919 states and 1434 transitions. [2021-10-28 08:45:16,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:45:16,786 INFO L681 BuchiCegarLoop]: Abstraction has 919 states and 1434 transitions. [2021-10-28 08:45:16,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states and 1434 transitions. [2021-10-28 08:45:16,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 917. [2021-10-28 08:45:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 917 states have (on average 1.5605234460196293) internal successors, (1431), 916 states have internal predecessors, (1431), 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) [2021-10-28 08:45:16,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1431 transitions. [2021-10-28 08:45:16,889 INFO L704 BuchiCegarLoop]: Abstraction has 917 states and 1431 transitions. [2021-10-28 08:45:16,889 INFO L587 BuchiCegarLoop]: Abstraction has 917 states and 1431 transitions. [2021-10-28 08:45:16,889 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:45:16,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 917 states and 1431 transitions. [2021-10-28 08:45:16,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 612 [2021-10-28 08:45:16,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:45:16,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:45:16,899 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:16,899 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:16,899 INFO L791 eck$LassoCheckResult]: Stem: 1938#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1898#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 1593#L979 havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 1594#L954 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 1826#L954-1 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 1827#L954-2 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 1607#L954-3 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 1608#L954-4 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 1535#L954-5 select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 1536#L971 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 1680#L987 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1850#L506 assume 0 != main_~tmp~3; 1863#L479 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1465#L1009-1 [2021-10-28 08:45:16,900 INFO L793 eck$LassoCheckResult]: Loop: 1465#L1009-1 assume !false; 1466#L541 assume test_~splverifierCounter~0 < 4; 1841#L542 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 1878#L550 assume !(0 != test_~tmp~4); 1483#L550-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 1484#L560 assume !(0 != test_~tmp___0~0); 1742#L560-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 1794#L570 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 1795#L582 assume !(0 != test_~tmp___1~0); 1556#L582-1 assume !(0 != ~pumpRunning~0); 1757#L623 assume 0 != ~systemActive~0; 1758#L766 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 1904#L723-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 1905#L680-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 1844#L630 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1697#L1080-10 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 1698#L1003 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 1465#L1009-1 [2021-10-28 08:45:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:16,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 2 times [2021-10-28 08:45:16,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:16,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013200926] [2021-10-28 08:45:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:16,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:16,972 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:45:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:17,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:45:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:17,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1493625380, now seen corresponding path program 1 times [2021-10-28 08:45:17,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:17,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948218029] [2021-10-28 08:45:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:17,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:17,082 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:45:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:17,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:45:17,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:17,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1931444270, now seen corresponding path program 1 times [2021-10-28 08:45:17,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:17,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873543212] [2021-10-28 08:45:17,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:17,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:17,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:17,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873543212] [2021-10-28 08:45:17,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873543212] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:17,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:17,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:45:17,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802128509] [2021-10-28 08:45:17,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:17,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:45:17,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:45:17,417 INFO L87 Difference]: Start difference. First operand 917 states and 1431 transitions. cyclomatic complexity: 517 Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-10-28 08:45:18,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:18,061 INFO L93 Difference]: Finished difference Result 3447 states and 5435 transitions. [2021-10-28 08:45:18,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:45:18,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3447 states and 5435 transitions. [2021-10-28 08:45:18,134 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 2422 [2021-10-28 08:45:18,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3447 states to 3447 states and 5435 transitions. [2021-10-28 08:45:18,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3447 [2021-10-28 08:45:18,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3447 [2021-10-28 08:45:18,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3447 states and 5435 transitions. [2021-10-28 08:45:18,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:45:18,180 INFO L681 BuchiCegarLoop]: Abstraction has 3447 states and 5435 transitions. [2021-10-28 08:45:18,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states and 5435 transitions. [2021-10-28 08:45:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 1821. [2021-10-28 08:45:18,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1821 states have (on average 1.5601317957166392) internal successors, (2841), 1820 states have internal predecessors, (2841), 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) [2021-10-28 08:45:18,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2841 transitions. [2021-10-28 08:45:18,244 INFO L704 BuchiCegarLoop]: Abstraction has 1821 states and 2841 transitions. [2021-10-28 08:45:18,244 INFO L587 BuchiCegarLoop]: Abstraction has 1821 states and 2841 transitions. [2021-10-28 08:45:18,245 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:45:18,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1821 states and 2841 transitions. [2021-10-28 08:45:18,260 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1224 [2021-10-28 08:45:18,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:45:18,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:45:18,262 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:18,262 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:18,262 INFO L791 eck$LassoCheckResult]: Stem: 6362#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 6306#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 5978#L979 havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 5979#L954 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 6221#L954-1 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 6222#L954-2 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 5991#L954-3 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 5992#L954-4 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 5920#L954-5 select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 5921#L971 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 6066#L987 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 6250#L506 assume 0 != main_~tmp~3; 6266#L479 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 5847#L1009-1 [2021-10-28 08:45:18,263 INFO L793 eck$LassoCheckResult]: Loop: 5847#L1009-1 assume !false; 5848#L541 assume test_~splverifierCounter~0 < 4; 6239#L542 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 6281#L550 assume !(0 != test_~tmp~4); 5867#L550-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 5868#L560 assume !(0 != test_~tmp___0~0); 6170#L560-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 7603#L570 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 7600#L582 assume !(0 != test_~tmp___1~0); 6184#L582-1 assume !(0 != ~pumpRunning~0); 6148#L623 assume 0 != ~systemActive~0; 6149#L766 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 6150#L723-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 5826#L680-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 5824#L630 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 6242#L1080-10 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 6318#L1003 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 6319#L1112 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 6006#L1009 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 5847#L1009-1 [2021-10-28 08:45:18,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:18,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 3 times [2021-10-28 08:45:18,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:18,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479220746] [2021-10-28 08:45:18,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:18,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:18,321 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:45:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:18,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:45:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash -854886994, now seen corresponding path program 1 times [2021-10-28 08:45:18,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:18,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457652126] [2021-10-28 08:45:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:18,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:18,387 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:45:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:18,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:45:18,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:18,397 INFO L85 PathProgramCache]: Analyzing trace with hash -692045276, now seen corresponding path program 1 times [2021-10-28 08:45:18,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:18,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473469305] [2021-10-28 08:45:18,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:18,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:18,454 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:45:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:18,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:46:33,640 WARN L207 SmtUtils]: Spent 1.25 m on a formula simplification. DAG size of input: 553 DAG size of output: 495 [2021-10-28 08:47:43,422 WARN L207 SmtUtils]: Spent 33.60 s on a formula simplification that was a NOOP. DAG size: 444 [2021-10-28 08:47:43,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:47:43 BoogieIcfgContainer [2021-10-28 08:47:43,591 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:47:43,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:47:43,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:47:43,591 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:47:43,592 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:15" (3/4) ... [2021-10-28 08:47:43,595 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:47:43,680 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:47:43,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:47:43,682 INFO L168 Benchmark]: Toolchain (without parser) took 150555.15 ms. Allocated memory was 100.7 MB in the beginning and 178.3 MB in the end (delta: 77.6 MB). Free memory was 61.0 MB in the beginning and 78.5 MB in the end (delta: -17.4 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:43,683 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:43,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.99 ms. Allocated memory is still 100.7 MB. Free memory was 60.8 MB in the beginning and 67.1 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:43,684 INFO L168 Benchmark]: Boogie Procedure Inliner took 166.74 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 55.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:43,684 INFO L168 Benchmark]: Boogie Preprocessor took 164.67 ms. Allocated memory is still 100.7 MB. Free memory was 55.8 MB in the beginning and 48.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:43,685 INFO L168 Benchmark]: RCFGBuilder took 1792.98 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 48.3 MB in the beginning and 77.1 MB in the end (delta: -28.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:43,686 INFO L168 Benchmark]: BuchiAutomizer took 147726.57 ms. Allocated memory was 125.8 MB in the beginning and 178.3 MB in the end (delta: 52.4 MB). Free memory was 76.3 MB in the beginning and 81.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:43,686 INFO L168 Benchmark]: Witness Printer took 89.78 ms. Allocated memory is still 178.3 MB. Free memory was 81.6 MB in the beginning and 78.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:43,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 606.99 ms. Allocated memory is still 100.7 MB. Free memory was 60.8 MB in the beginning and 67.1 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 166.74 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 55.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 164.67 ms. Allocated memory is still 100.7 MB. Free memory was 55.8 MB in the beginning and 48.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1792.98 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 48.3 MB in the beginning and 77.1 MB in the end (delta: -28.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 147726.57 ms. Allocated memory was 125.8 MB in the beginning and 178.3 MB in the end (delta: 52.4 MB). Free memory was 76.3 MB in the beginning and 81.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.1 GB. * Witness Printer took 89.78 ms. Allocated memory is still 178.3 MB. Free memory was 81.6 MB in the beginning and 78.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1821 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 146.3s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1628 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 1821 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1818 SDtfs, 3707 SDslu, 4108 SDs, 0 SdLazy, 377 SolverSat, 93 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 540]: 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 {retValue_acc=1, NULL=0, NULL=14785, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14616ea3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dd02ec6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6340784f=0, NULL=0, NULL=0, methaneLevelCritical=0, NULL=0, tmp=0, NULL=0, NULL=14767, tmp___1=0, NULL=0, NULL=14776, NULL=14777, cleanupTimeShifts=4, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5db2b084=0, NULL=0, waterLevel=1, NULL=0, NULL=0, __SELECTED_FEATURE_methaneAlarm=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=14783, tmp=1, NULL=0, NULL=0, NULL=0, NULL=14782, __SELECTED_FEATURE_stopCommand=0, NULL=14772, NULL=14765, NULL=14761, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69246f00=0, NULL=14770, NULL=14774, head=0, NULL=0, NULL=0, tmp=0, NULL=14763, NULL=0, NULL=0, choice=51, \result=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c971a9d=0, __SELECTED_FEATURE_base=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b0d65af=0, retValue_acc=0, NULL=14773, NULL=0, NULL=14766, NULL=0, NULL=0, NULL=14775, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16ee3d3a=0, __GUIDSL_ROOT_PRODUCTION=1, NULL=0, NULL=0, NULL=14768, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f401fa=0, NULL=14778, NULL=14760, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@583b1930=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32fd5b43=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a088cca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34fc7a03=0, tmp___0=1, NULL=14784, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@495ba34c=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=14771, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@679e6f71=0, __SELECTED_FEATURE_lowWaterSensor=0, NULL=0, NULL=0, NULL=0, NULL=14780, \result=0, retValue_acc=51, __SELECTED_FEATURE_highWaterSensor=0, NULL=14781, NULL=14764, retValue_acc=1, NULL=14762, __SELECTED_FEATURE_methaneQuery=0, NULL=14759, tmp___2=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=14758, NULL=14779, tmp___1=0, __SELECTED_FEATURE_startCommand=51, NULL=14769} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L520] int __SELECTED_FEATURE_base ; [L521] int __SELECTED_FEATURE_highWaterSensor ; [L522] int __SELECTED_FEATURE_lowWaterSensor ; [L523] int __SELECTED_FEATURE_methaneQuery ; [L524] int __SELECTED_FEATURE_methaneAlarm ; [L525] int __SELECTED_FEATURE_stopCommand ; [L526] int __SELECTED_FEATURE_startCommand ; [L527] int __GUIDSL_ROOT_PRODUCTION ; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L1037] int waterLevel = 1; [L1038] int methaneLevelCritical = 0; [L497] int retValue_acc ; [L498] int tmp ; [L978] __GUIDSL_ROOT_PRODUCTION = 1 [L963] __SELECTED_FEATURE_base = 1 [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L964] __SELECTED_FEATURE_highWaterSensor = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L965] __SELECTED_FEATURE_lowWaterSensor = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L966] __SELECTED_FEATURE_methaneQuery = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L967] __SELECTED_FEATURE_methaneAlarm = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L968] __SELECTED_FEATURE_stopCommand = select_one() [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L969] __SELECTED_FEATURE_startCommand = select_one() [L983] int retValue_acc ; [L986] retValue_acc = __SELECTED_FEATURE_base [L987] return (retValue_acc); [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L531] int splverifierCounter ; [L532] int tmp ; [L533] int tmp___0 ; [L534] int tmp___1 ; [L535] int tmp___2 ; [L538] splverifierCounter = 0 Loop: [L540] COND TRUE 1 [L542] COND TRUE splverifierCounter < 4 [L548] tmp = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp)) [L558] tmp___0 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___0)) [L568] tmp___2 = __VERIFIER_nondet_int() [L570] COND FALSE !(\read(tmp___2)) [L580] tmp___1 = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp___1)) [L623] COND FALSE !(\read(pumpRunning)) [L630] COND TRUE \read(systemActive) [L766] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L723] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L680] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L995] int tmp ; [L996] int tmp___0 ; [L997] int tmp___1 ; [L1076] int retValue_acc ; [L1079] retValue_acc = methaneLevelCritical [L1080] return (retValue_acc); [L1001] tmp = isMethaneLevelCritical() [L1003] COND FALSE !(\read(tmp)) [L1108] int retValue_acc ; [L1111] retValue_acc = waterLevel [L1112] return (retValue_acc); [L1007] tmp___0 = getWaterLevel() [L1009] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:47:43,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696520c4-b416-4d30-a0e6-c8a8597a8215/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...