./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer --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 a285a3ca3b1510caf096d0e38f1e6e56ffc456f4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-29 23:17:17,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:17:17,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:17:17,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:17:17,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:17:17,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:17:17,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:17:17,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:17:17,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:17:17,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:17:17,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:17:17,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:17:17,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:17:17,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:17:17,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:17:17,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:17:17,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:17:17,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:17:17,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:17:17,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:17:17,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:17:17,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:17:17,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:17:17,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:17:17,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:17:17,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:17:17,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:17:17,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:17:17,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:17:17,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:17:17,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:17:17,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:17:17,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:17:17,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:17:17,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:17:17,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:17:17,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:17:17,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:17:17,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:17:17,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:17:17,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:17:17,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:17:17,925 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:17:17,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:17:17,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:17:17,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:17:17,930 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:17:17,931 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:17:17,931 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:17:17,931 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:17:17,931 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:17:17,931 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:17:17,932 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:17:17,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:17:17,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:17:17,933 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:17:17,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:17:17,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:17:17,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:17:17,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:17:17,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:17:17,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:17:17,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:17:17,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:17:17,935 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:17:17,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:17:17,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:17:17,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:17:17,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:17:17,936 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:17:17,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:17:17,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:17:17,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:17:17,937 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:17:17,939 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:17:17,940 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-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a285a3ca3b1510caf096d0e38f1e6e56ffc456f4 [2020-11-29 23:17:18,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:17:18,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:17:18,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:17:18,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:17:18,227 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:17:18,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2020-11-29 23:17:18,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/data/a1c825036/d0884b9f861e450eba7e8d84f5464239/FLAG93d701813 [2020-11-29 23:17:18,883 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:17:18,884 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2020-11-29 23:17:18,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/data/a1c825036/d0884b9f861e450eba7e8d84f5464239/FLAG93d701813 [2020-11-29 23:17:19,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/data/a1c825036/d0884b9f861e450eba7e8d84f5464239 [2020-11-29 23:17:19,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:17:19,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:17:19,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:17:19,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:17:19,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:17:19,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5735e27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19, skipping insertion in model container [2020-11-29 23:17:19,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:17:19,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:17:19,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:17:19,517 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:17:19,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:17:19,671 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:17:19,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19 WrapperNode [2020-11-29 23:17:19,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:17:19,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:17:19,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:17:19,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:17:19,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:17:19,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:17:19,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:17:19,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:17:19,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... [2020-11-29 23:17:19,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:17:19,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:17:19,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:17:19,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:17:19,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:17:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:17:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:17:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:17:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:17:20,927 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:17:20,927 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-11-29 23:17:20,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:17:20 BoogieIcfgContainer [2020-11-29 23:17:20,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:17:20,930 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:17:20,930 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:17:20,947 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:17:20,947 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:17:20,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:17:19" (1/3) ... [2020-11-29 23:17:20,950 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7fda4542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:17:20, skipping insertion in model container [2020-11-29 23:17:20,950 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:17:20,950 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:19" (2/3) ... [2020-11-29 23:17:20,951 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7fda4542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:17:20, skipping insertion in model container [2020-11-29 23:17:20,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:17:20,951 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:17:20" (3/3) ... [2020-11-29 23:17:20,952 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2020-11-29 23:17:21,016 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:17:21,016 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:17:21,016 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:17:21,016 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:17:21,016 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:17:21,017 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:17:21,017 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:17:21,017 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:17:21,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-11-29 23:17:21,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2020-11-29 23:17:21,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:17:21,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:17:21,083 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:21,084 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:21,084 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:17:21,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-11-29 23:17:21,090 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2020-11-29 23:17:21,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:17:21,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:17:21,091 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:21,091 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:21,095 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 13#L-1true havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 91#L635true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 5#L643true main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 8#L599true assume 0 != main_~tmp~3; 25#L570true ~methAndRunningLastTime~0 := 0; 76#L656true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 79#L667-1true [2020-11-29 23:17:21,096 INFO L796 eck$LassoCheckResult]: Loop: 79#L667-1true assume !false; 88#L701true assume test_~splverifierCounter~0 < 4; 15#L702true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 42#L710true assume !(0 != test_~tmp~5); 46#L710-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 22#L720true assume !(0 != test_~tmp___0~1); 26#L720-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 94#L730true assume 0 != test_~tmp___2~0; 66#L736-1true assume !(0 != ~pumpRunning~0); 68#L766true assume !(0 != ~systemActive~0); 78#L773true havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 28#L92-1true __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 74#L667true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 79#L667-1true [2020-11-29 23:17:21,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:21,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 23:17:21,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:17:21,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923330330] [2020-11-29 23:17:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:17:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:21,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:21,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:21,563 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:17:21,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:21,565 INFO L82 PathProgramCache]: Analyzing trace with hash 11680533, now seen corresponding path program 1 times [2020-11-29 23:17:21,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:17:21,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435395054] [2020-11-29 23:17:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:17:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:21,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:21,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:21,601 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:17:21,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:21,603 INFO L82 PathProgramCache]: Analyzing trace with hash 844977039, now seen corresponding path program 1 times [2020-11-29 23:17:21,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:17:21,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128802925] [2020-11-29 23:17:21,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:17:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:17:21,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:17:21,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128802925] [2020-11-29 23:17:21,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:17:21,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:17:21,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801025200] [2020-11-29 23:17:21,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:17:21,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:17:21,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:17:21,924 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 6 states. [2020-11-29 23:17:22,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:17:22,321 INFO L93 Difference]: Finished difference Result 226 states and 319 transitions. [2020-11-29 23:17:22,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:17:22,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 319 transitions. [2020-11-29 23:17:22,345 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 143 [2020-11-29 23:17:22,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 205 states and 298 transitions. [2020-11-29 23:17:22,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2020-11-29 23:17:22,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2020-11-29 23:17:22,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 205 states and 298 transitions. [2020-11-29 23:17:22,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:17:22,365 INFO L691 BuchiCegarLoop]: Abstraction has 205 states and 298 transitions. [2020-11-29 23:17:22,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states and 298 transitions. [2020-11-29 23:17:22,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 127. [2020-11-29 23:17:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-29 23:17:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 184 transitions. [2020-11-29 23:17:22,432 INFO L714 BuchiCegarLoop]: Abstraction has 127 states and 184 transitions. [2020-11-29 23:17:22,432 INFO L594 BuchiCegarLoop]: Abstraction has 127 states and 184 transitions. [2020-11-29 23:17:22,433 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:17:22,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 127 states and 184 transitions. [2020-11-29 23:17:22,443 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2020-11-29 23:17:22,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:17:22,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:17:22,445 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:22,445 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:22,446 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 353#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 354#L635 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 341#L643 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 342#L599 assume 0 != main_~tmp~3; 346#L570 ~methAndRunningLastTime~0 := 0; 366#L656 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 348#L667-1 [2020-11-29 23:17:22,447 INFO L796 eck$LassoCheckResult]: Loop: 348#L667-1 assume !false; 417#L701 assume test_~splverifierCounter~0 < 4; 357#L702 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 358#L710 assume !(0 != test_~tmp~5); 392#L710-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 362#L720 assume !(0 != test_~tmp___0~1); 364#L720-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 367#L730 assume 0 != test_~tmp___2~0; 409#L736-1 assume !(0 != ~pumpRunning~0); 383#L766 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 375#L798 assume !(0 == ~pumpRunning~0); 377#L773 havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 370#L92-1 __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 371#L667 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 348#L667-1 [2020-11-29 23:17:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:22,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 23:17:22,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:17:22,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974418531] [2020-11-29 23:17:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:17:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:22,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:22,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:22,614 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:17:22,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:22,615 INFO L82 PathProgramCache]: Analyzing trace with hash 320327043, now seen corresponding path program 1 times [2020-11-29 23:17:22,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:17:22,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343631253] [2020-11-29 23:17:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:17:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:17:22,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:17:22,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343631253] [2020-11-29 23:17:22,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:17:22,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:17:22,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197719493] [2020-11-29 23:17:22,635 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:17:22,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:17:22,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:17:22,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:17:22,636 INFO L87 Difference]: Start difference. First operand 127 states and 184 transitions. cyclomatic complexity: 60 Second operand 3 states. [2020-11-29 23:17:22,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:17:22,755 INFO L93 Difference]: Finished difference Result 169 states and 233 transitions. [2020-11-29 23:17:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:17:22,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 233 transitions. [2020-11-29 23:17:22,758 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2020-11-29 23:17:22,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 169 states and 233 transitions. [2020-11-29 23:17:22,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2020-11-29 23:17:22,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2020-11-29 23:17:22,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 233 transitions. [2020-11-29 23:17:22,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:17:22,770 INFO L691 BuchiCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-11-29 23:17:22,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 233 transitions. [2020-11-29 23:17:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-11-29 23:17:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-29 23:17:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2020-11-29 23:17:22,788 INFO L714 BuchiCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-11-29 23:17:22,789 INFO L594 BuchiCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-11-29 23:17:22,789 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:17:22,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states and 233 transitions. [2020-11-29 23:17:22,791 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2020-11-29 23:17:22,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:17:22,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:17:22,794 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:22,794 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:22,795 INFO L794 eck$LassoCheckResult]: Stem: 679#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 657#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 658#L635 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 643#L643 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 644#L599 assume 0 != main_~tmp~3; 648#L570 ~methAndRunningLastTime~0 := 0; 668#L656 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 726#L667-1 [2020-11-29 23:17:22,795 INFO L796 eck$LassoCheckResult]: Loop: 726#L667-1 assume !false; 790#L701 assume test_~splverifierCounter~0 < 4; 789#L702 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 788#L710 assume !(0 != test_~tmp~5); 786#L710-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 785#L720 assume !(0 != test_~tmp___0~1); 783#L720-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 781#L730 assume 0 != test_~tmp___2~0; 780#L736-1 assume !(0 != ~pumpRunning~0); 716#L766 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 677#L798 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret79, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 678#L132 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 699#L137 isHighWaterLevel_#t~ret79 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret79;havoc isHighWaterLevel_#t~ret79; 676#L918 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 655#L918-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 656#L924 processEnvironment_#t~ret60 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret60;havoc processEnvironment_#t~ret60; 707#L802 assume !(0 != processEnvironment_~tmp~6); 703#L773 havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 795#L92-1 __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 793#L667 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 726#L667-1 [2020-11-29 23:17:22,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:22,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 23:17:22,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:17:22,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913425482] [2020-11-29 23:17:22,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:17:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:22,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:22,924 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:22,940 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:17:22,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:22,942 INFO L82 PathProgramCache]: Analyzing trace with hash 333870639, now seen corresponding path program 1 times [2020-11-29 23:17:22,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:17:22,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568552655] [2020-11-29 23:17:22,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:17:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:22,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:22,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:22,973 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:17:22,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:22,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1499447413, now seen corresponding path program 1 times [2020-11-29 23:17:22,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:17:22,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855998395] [2020-11-29 23:17:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:17:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:23,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:17:23,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:17:23,053 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:17:23,216 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-11-29 23:18:49,186 WARN L193 SmtUtils]: Spent 1.43 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 23:19:47,040 WARN L193 SmtUtils]: Spent 57.82 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 23:19:47,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:19:47 BoogieIcfgContainer [2020-11-29 23:19:47,281 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:19:47,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:19:47,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:19:47,283 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:19:47,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:17:20" (3/4) ... [2020-11-29 23:19:47,287 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:19:47,345 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_31e1bf1f-2f57-42de-bfad-6da93232c558/bin/uautomizer/witness.graphml [2020-11-29 23:19:47,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:19:47,347 INFO L168 Benchmark]: Toolchain (without parser) took 148161.76 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 65.2 MB in the beginning and 77.6 MB in the end (delta: -12.4 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:19:47,347 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 47.2 MB in the beginning and 47.1 MB in the end (delta: 77.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:19:47,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.88 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 43.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:19:47,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.28 ms. Allocated memory is still 94.4 MB. Free memory was 43.7 MB in the beginning and 40.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:19:47,349 INFO L168 Benchmark]: Boogie Preprocessor took 76.26 ms. Allocated memory is still 94.4 MB. Free memory was 40.6 MB in the beginning and 38.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:19:47,350 INFO L168 Benchmark]: RCFGBuilder took 1078.55 ms. Allocated memory is still 94.4 MB. Free memory was 38.3 MB in the beginning and 59.9 MB in the end (delta: -21.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:19:47,351 INFO L168 Benchmark]: BuchiAutomizer took 146351.45 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 59.9 MB in the beginning and 79.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:19:47,351 INFO L168 Benchmark]: Witness Printer took 62.95 ms. Allocated memory is still 142.6 MB. Free memory was 79.7 MB in the beginning and 77.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:19:47,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 47.2 MB in the beginning and 47.1 MB in the end (delta: 77.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 487.88 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 43.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.28 ms. Allocated memory is still 94.4 MB. Free memory was 43.7 MB in the beginning and 40.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.26 ms. Allocated memory is still 94.4 MB. Free memory was 40.6 MB in the beginning and 38.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1078.55 ms. Allocated memory is still 94.4 MB. Free memory was 38.3 MB in the beginning and 59.9 MB in the end (delta: -21.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 146351.45 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 59.9 MB in the beginning and 79.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. * Witness Printer took 62.95 ms. Allocated memory is still 142.6 MB. Free memory was 79.7 MB in the beginning and 77.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 169 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 146.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 145.4s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 78 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 169 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 243 SDtfs, 571 SDslu, 674 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 700]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=14784, NULL=0, NULL=1, NULL=14786, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f745c5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79655dfd=0, NULL=14771, methaneLevelCritical=0, tmp=0, NULL=0, NULL=14793, tmp___1=0, NULL=0, NULL=14773, NULL=14785, cleanupTimeShifts=4, NULL=14789, NULL=14780, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=14787, \result=1, head=0, pumpRunning=0, tmp=1, NULL=14795, NULL=0, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, tmp=1, tmp___0=0, methAndRunningLastTime=0, NULL=14790, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a837f78=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5483f2f9=0, head=0, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=14778, NULL=14792, NULL=14783, NULL=14779, tmp___0=0, NULL=14794, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2876e425=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=0, NULL=14782, \result=0, NULL=0, NULL=14774, NULL=14777, NULL=14775, \result=0, NULL=14791, NULL=0, NULL=14770, NULL=14776, tmp___0=0, retValue_acc=1, NULL=2, tmp___2=50, splverifierCounter=0, NULL=0, \result=0, NULL=14769, NULL=14772, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20f4f3b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58e96d91=50, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cf22d0b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@772fd61d=0, NULL=14781, NULL=14788, tmp=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L509] int cleanupTimeShifts = 4; [L650] int methAndRunningLastTime ; [L759] int pumpRunning = 0; [L760] int systemActive = 1; [L590] int retValue_acc ; [L591] int tmp ; [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); [L597] tmp = valid_product() [L599] COND TRUE \read(tmp) [L655] methAndRunningLastTime = 0 [L691] int splverifierCounter ; [L692] int tmp ; [L693] int tmp___0 ; [L694] int tmp___1 ; [L695] int tmp___2 ; [L698] splverifierCounter = 0 Loop: [L700] COND TRUE 1 [L702] COND TRUE splverifierCounter < 4 [L708] tmp = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp)) [L718] tmp___0 = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp___0)) [L728] tmp___2 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___2) [L766] COND FALSE !(\read(pumpRunning)) [L773] COND TRUE \read(systemActive) [L795] int tmp ; [L798] COND TRUE ! pumpRunning [L910] int retValue_acc ; [L911] int tmp ; [L912] int tmp___0 ; [L129] int retValue_acc ; [L132] COND TRUE waterLevel < 2 [L133] retValue_acc = 1 [L134] return (retValue_acc); [L916] tmp = isHighWaterSensorDry() [L918] COND TRUE \read(tmp) [L919] tmp___0 = 0 [L923] retValue_acc = tmp___0 [L924] return (retValue_acc); [L800] tmp = isHighWaterLevel() [L802] COND FALSE !(\read(tmp)) [L660] int tmp ; [L661] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L683] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...