./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product05.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_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/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 d92162b9d577c75e7ec1bed677680510b83ae329 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 01:14:51,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:14:51,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:14:51,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:14:51,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:14:51,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:14:51,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:14:51,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:14:51,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:14:51,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:14:51,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:14:51,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:14:51,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:14:51,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:14:51,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:14:51,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:14:51,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:14:51,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:14:51,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:14:51,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:14:51,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:14:51,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:14:51,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:14:51,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:14:51,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:14:51,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:14:51,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:14:51,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:14:51,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:14:51,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:14:51,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:14:51,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:14:51,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:14:51,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:14:51,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:14:51,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:14:51,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:14:51,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:14:51,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:14:51,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:14:51,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:14:51,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:14:52,015 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:14:52,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:14:52,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:14:52,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:14:52,031 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:14:52,032 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:14:52,032 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:14:52,032 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:14:52,033 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:14:52,033 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:14:52,034 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:14:52,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:14:52,035 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:14:52,035 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:14:52,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:14:52,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:14:52,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:14:52,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:14:52,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:14:52,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:14:52,037 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:14:52,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:14:52,038 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:14:52,038 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:14:52,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:14:52,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:14:52,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:14:52,040 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:14:52,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:14:52,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:14:52,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:14:52,043 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:14:52,046 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:14:52,046 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_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d92162b9d577c75e7ec1bed677680510b83ae329 [2020-11-30 01:14:52,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:14:52,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:14:52,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:14:52,389 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:14:52,390 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:14:52,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2020-11-30 01:14:52,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/data/d1ba6b19f/7a0db05448d944269deb4d2b0d35359d/FLAG7b26fd24b [2020-11-30 01:14:53,166 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:14:53,166 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2020-11-30 01:14:53,200 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/data/d1ba6b19f/7a0db05448d944269deb4d2b0d35359d/FLAG7b26fd24b [2020-11-30 01:14:53,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/data/d1ba6b19f/7a0db05448d944269deb4d2b0d35359d [2020-11-30 01:14:53,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:14:53,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:14:53,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:14:53,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:14:53,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:14:53,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:14:53" (1/1) ... [2020-11-30 01:14:53,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1fd9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:53, skipping insertion in model container [2020-11-30 01:14:53,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:14:53" (1/1) ... [2020-11-30 01:14:53,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:14:53,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:14:53,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:14:53,961 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:14:54,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:14:54,121 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:14:54,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54 WrapperNode [2020-11-30 01:14:54,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:14:54,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:14:54,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:14:54,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:14:54,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:14:54,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:14:54,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:14:54,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:14:54,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... [2020-11-30 01:14:54,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:14:54,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:14:54,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:14:54,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:14:54,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/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 [2020-11-30 01:14:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:14:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:14:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:14:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:14:55,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:14:55,487 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-30 01:14:55,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:55 BoogieIcfgContainer [2020-11-30 01:14:55,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:14:55,491 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:14:55,491 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:14:55,496 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:14:55,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:55,497 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:14:53" (1/3) ... [2020-11-30 01:14:55,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e9ef1c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:14:55, skipping insertion in model container [2020-11-30 01:14:55,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:55,504 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:54" (2/3) ... [2020-11-30 01:14:55,505 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e9ef1c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:14:55, skipping insertion in model container [2020-11-30 01:14:55,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:55,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:55" (3/3) ... [2020-11-30 01:14:55,507 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-11-30 01:14:55,578 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:14:55,579 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:14:55,579 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:14:55,579 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:14:55,579 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:14:55,579 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:14:55,579 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:14:55,579 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:14:55,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-30 01:14:55,620 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-30 01:14:55,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:55,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:55,629 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:14:55,629 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:55,629 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:14:55,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-30 01:14:55,636 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-30 01:14:55,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:55,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:55,637 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:14:55,637 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:55,642 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~4, main_~tmp~2;havoc main_~retValue_acc~4;havoc main_~tmp~2; 57#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 68#L75true main_#t~ret30 := valid_product_#res;main_~tmp~2 := main_#t~ret30;havoc main_#t~ret30; 36#L381true assume 0 != main_~tmp~2; 18#L358true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 41#L857-1true [2020-11-30 01:14:55,643 INFO L796 eck$LassoCheckResult]: Loop: 41#L857-1true assume !false; 34#L245true assume test_~splverifierCounter~0 < 4; 53#L246true test_~tmp~1 := test_#t~nondet26;havoc test_#t~nondet26; 49#L254true assume !(0 != test_~tmp~1); 45#L254-1true test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 30#L264true assume !(0 != test_~tmp___0~0); 28#L264-1true test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 7#L274true assume 0 != test_~tmp___2~0; 70#L280-2true assume !(0 != ~pumpRunning~0); 64#L105true assume !(0 != ~systemActive~0); 59#L112true havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 24#L805-1true __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 67#L851true assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 41#L857-1true [2020-11-30 01:14:55,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:55,650 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:14:55,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:55,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985024096] [2020-11-30 01:14:55,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:55,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:56,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:56,200 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:56,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899275, now seen corresponding path program 1 times [2020-11-30 01:14:56,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:56,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424456523] [2020-11-30 01:14:56,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:56,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:56,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:56,245 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:56,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:56,254 INFO L82 PathProgramCache]: Analyzing trace with hash 32379663, now seen corresponding path program 1 times [2020-11-30 01:14:56,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:56,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083913261] [2020-11-30 01:14:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:56,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:56,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083913261] [2020-11-30 01:14:56,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:56,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:14:56,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471170705] [2020-11-30 01:14:56,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:56,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:14:56,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:14:56,662 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 6 states. [2020-11-30 01:14:56,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:56,915 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2020-11-30 01:14:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:14:56,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2020-11-30 01:14:56,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-30 01:14:56,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2020-11-30 01:14:56,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2020-11-30 01:14:56,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2020-11-30 01:14:56,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2020-11-30 01:14:56,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:14:56,936 INFO L691 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-30 01:14:56,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2020-11-30 01:14:56,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-30 01:14:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-30 01:14:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2020-11-30 01:14:56,994 INFO L714 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-30 01:14:56,994 INFO L594 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-30 01:14:56,994 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:14:56,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2020-11-30 01:14:56,999 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-30 01:14:56,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:56,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:57,000 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:14:57,000 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:57,000 INFO L794 eck$LassoCheckResult]: Stem: 211#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 181#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~4, main_~tmp~2;havoc main_~retValue_acc~4;havoc main_~tmp~2; 182#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 228#L75 main_#t~ret30 := valid_product_#res;main_~tmp~2 := main_#t~ret30;havoc main_#t~ret30; 212#L381 assume 0 != main_~tmp~2; 185#L358 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 186#L857-1 [2020-11-30 01:14:57,001 INFO L796 eck$LassoCheckResult]: Loop: 186#L857-1 assume !false; 208#L245 assume test_~splverifierCounter~0 < 4; 209#L246 test_~tmp~1 := test_#t~nondet26;havoc test_#t~nondet26; 223#L254 assume !(0 != test_~tmp~1); 219#L254-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 200#L264 assume !(0 != test_~tmp___0~0); 197#L264-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 174#L274 assume 0 != test_~tmp___2~0; 175#L280-2 assume !(0 != ~pumpRunning~0); 205#L105 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 224#L137 assume !(0 != ~pumpRunning~0); 225#L112 havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 190#L805-1 __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 191#L851 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 186#L857-1 [2020-11-30 01:14:57,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:57,001 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:14:57,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:57,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774085757] [2020-11-30 01:14:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:57,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:57,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:57,178 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:57,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:57,179 INFO L82 PathProgramCache]: Analyzing trace with hash -619797874, now seen corresponding path program 1 times [2020-11-30 01:14:57,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:57,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029582674] [2020-11-30 01:14:57,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:57,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:57,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:57,204 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:57,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:57,206 INFO L82 PathProgramCache]: Analyzing trace with hash 983241652, now seen corresponding path program 1 times [2020-11-30 01:14:57,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:57,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654141397] [2020-11-30 01:14:57,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:57,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654141397] [2020-11-30 01:14:57,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:57,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:14:57,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963098105] [2020-11-30 01:14:57,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:57,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:14:57,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:14:57,406 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. cyclomatic complexity: 27 Second operand 5 states. [2020-11-30 01:14:57,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:57,715 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2020-11-30 01:14:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:14:57,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 300 transitions. [2020-11-30 01:14:57,726 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2020-11-30 01:14:57,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 300 transitions. [2020-11-30 01:14:57,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2020-11-30 01:14:57,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2020-11-30 01:14:57,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 300 transitions. [2020-11-30 01:14:57,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:14:57,741 INFO L691 BuchiCegarLoop]: Abstraction has 211 states and 300 transitions. [2020-11-30 01:14:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 300 transitions. [2020-11-30 01:14:57,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 124. [2020-11-30 01:14:57,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-30 01:14:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2020-11-30 01:14:57,759 INFO L714 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2020-11-30 01:14:57,760 INFO L594 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2020-11-30 01:14:57,760 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:14:57,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 124 states and 170 transitions. [2020-11-30 01:14:57,762 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2020-11-30 01:14:57,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:57,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:57,763 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:14:57,763 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:57,764 INFO L794 eck$LassoCheckResult]: Stem: 506#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 475#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~4, main_~tmp~2;havoc main_~retValue_acc~4;havoc main_~tmp~2; 476#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 534#L75 main_#t~ret30 := valid_product_#res;main_~tmp~2 := main_#t~ret30;havoc main_#t~ret30; 507#L381 assume 0 != main_~tmp~2; 479#L358 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 480#L857-1 [2020-11-30 01:14:57,764 INFO L796 eck$LassoCheckResult]: Loop: 480#L857-1 assume !false; 556#L245 assume test_~splverifierCounter~0 < 4; 557#L246 test_~tmp~1 := test_#t~nondet26;havoc test_#t~nondet26; 582#L254 assume !(0 != test_~tmp~1); 580#L254-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 494#L264 assume !(0 != test_~tmp___0~0); 495#L264-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 578#L274 assume 0 != test_~tmp___2~0; 542#L280-2 assume !(0 != ~pumpRunning~0); 498#L105 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 528#L137 assume !(0 != ~pumpRunning~0); 529#L112 havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 484#L805-1 __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 485#L851 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 481#L837 __utac_acc__Specification3_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 482#L857 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 480#L857-1 [2020-11-30 01:14:57,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:57,765 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:14:57,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:57,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865238175] [2020-11-30 01:14:57,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:57,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:57,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:57,944 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:57,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:57,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1374702914, now seen corresponding path program 1 times [2020-11-30 01:14:57,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:57,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037345233] [2020-11-30 01:14:57,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:57,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:57,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:57,963 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:57,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:57,965 INFO L82 PathProgramCache]: Analyzing trace with hash 2428136, now seen corresponding path program 1 times [2020-11-30 01:14:57,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:57,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137734339] [2020-11-30 01:14:57,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:58,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:58,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:58,105 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:31,311 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:17:35,746 WARN L193 SmtUtils]: Spent 1.07 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:17:36,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:17:36 BoogieIcfgContainer [2020-11-30 01:17:36,027 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:17:36,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:17:36,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:17:36,028 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:17:36,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:55" (3/4) ... [2020-11-30 01:17:36,031 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:17:36,099 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7dcd9c1a-0e4d-4e44-a3af-9174606d85fa/bin/uautomizer/witness.graphml [2020-11-30 01:17:36,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:17:36,101 INFO L168 Benchmark]: Toolchain (without parser) took 162611.86 ms. Allocated memory was 86.0 MB in the beginning and 134.2 MB in the end (delta: 48.2 MB). Free memory was 54.9 MB in the beginning and 94.2 MB in the end (delta: -39.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:36,102 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 86.0 MB. Free memory was 44.1 MB in the beginning and 44.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:17:36,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.31 ms. Allocated memory is still 86.0 MB. Free memory was 54.7 MB in the beginning and 54.0 MB in the end (delta: 647.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:36,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.61 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 51.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:36,103 INFO L168 Benchmark]: Boogie Preprocessor took 66.69 ms. Allocated memory is still 86.0 MB. Free memory was 51.0 MB in the beginning and 48.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:36,104 INFO L168 Benchmark]: RCFGBuilder took 1216.79 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 48.9 MB in the beginning and 85.7 MB in the end (delta: -36.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:36,105 INFO L168 Benchmark]: BuchiAutomizer took 160536.11 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 85.1 MB in the beginning and 97.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 84.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:36,105 INFO L168 Benchmark]: Witness Printer took 72.46 ms. Allocated memory is still 134.2 MB. Free memory was 97.2 MB in the beginning and 94.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:36,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 86.0 MB. Free memory was 44.1 MB in the beginning and 44.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.31 ms. Allocated memory is still 86.0 MB. Free memory was 54.7 MB in the beginning and 54.0 MB in the end (delta: 647.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.61 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 51.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.69 ms. Allocated memory is still 86.0 MB. Free memory was 51.0 MB in the beginning and 48.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1216.79 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 48.9 MB in the beginning and 85.7 MB in the end (delta: -36.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 160536.11 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 85.1 MB in the beginning and 97.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 84.4 MB. Max. memory is 16.1 GB. * Witness Printer took 72.46 ms. Allocated memory is still 134.2 MB. Free memory was 97.2 MB in the beginning and 94.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 124 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 160.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 159.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 87 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 124 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 202 SDtfs, 587 SDslu, 327 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 244]: 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=7829, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a42c5b5=0, NULL=1, retValue_acc=0, NULL=7809, NULL=0, NULL=0, NULL=7812, NULL=7816, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65371723=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46891527=0, NULL=0, NULL=0, tmp___1=0, NULL=7834, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=7825, NULL=7824, NULL=7813, NULL=7830, tmp___0=1, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=7814, \result=1, NULL=7810, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4023d0cc=0, retValue_acc=0, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=7828, NULL=0, NULL=0, NULL=7835, \result=1, head=0, pumpRunning=0, NULL=7823, \result=0, NULL=7826, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aa9ea97=0, NULL=7821, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56da9a62=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1de424c3=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4749344=0, NULL=0, NULL=0, NULL=7811, NULL=7818, NULL=0, NULL=7833, NULL=0, retValue_acc=1, NULL=7836, retValue_acc=1, tmp___2=72, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ec0f097=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=7831, NULL=7820, tmp=0, NULL=7827, tmp___1=0, head=0, NULL=7832, NULL=0, NULL=0, NULL=7815, NULL=7819, NULL=7817, NULL=7822} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L564] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L372] int retValue_acc ; [L373] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L379] tmp = valid_product() [L381] COND TRUE \read(tmp) [L235] int splverifierCounter ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L242] splverifierCounter = 0 Loop: [L244] COND TRUE 1 [L246] COND TRUE splverifierCounter < 4 [L252] tmp = __VERIFIER_nondet_int() [L254] COND FALSE !(\read(tmp)) [L262] tmp___0 = __VERIFIER_nondet_int() [L264] COND FALSE !(\read(tmp___0)) [L272] tmp___2 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp___2) [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L134] int tmp ; [L137] COND FALSE !(\read(pumpRunning)) [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] return (retValue_acc); [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] return (retValue_acc); [L855] tmp___0 = getWaterLevel() [L857] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...