./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.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_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/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 858ae6ce02a6182d965089435301193a306a5587 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:02:59,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:02:59,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:02:59,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:02:59,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:02:59,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:02:59,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:02:59,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:02:59,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:02:59,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:02:59,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:02:59,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:02:59,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:02:59,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:02:59,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:02:59,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:02:59,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:02:59,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:02:59,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:02:59,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:02:59,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:02:59,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:02:59,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:02:59,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:02:59,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:02:59,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:02:59,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:02:59,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:02:59,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:02:59,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:02:59,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:02:59,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:02:59,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:02:59,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:02:59,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:02:59,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:02:59,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:02:59,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:02:59,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:02:59,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:02:59,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:02:59,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:03:00,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:03:00,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:03:00,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:03:00,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:03:00,036 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:03:00,036 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:03:00,037 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:03:00,037 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:03:00,037 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:03:00,037 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:03:00,038 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:03:00,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:03:00,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:03:00,039 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:03:00,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:03:00,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:03:00,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:03:00,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:03:00,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:03:00,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:03:00,041 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:03:00,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:03:00,041 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:03:00,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:03:00,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:03:00,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:03:00,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:03:00,044 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:03:00,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:03:00,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:03:00,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:03:00,049 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:03:00,050 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:03:00,050 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_42633175-feeb-4307-8850-79dcb19c83eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 858ae6ce02a6182d965089435301193a306a5587 [2020-11-29 19:03:00,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:03:00,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:03:00,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:03:00,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:03:00,351 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:03:00,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-11-29 19:03:00,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/data/49713eac8/72efae6d96c34345935250ce5f7b7a53/FLAGbbbc6707d [2020-11-29 19:03:00,928 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:03:00,929 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-11-29 19:03:00,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/data/49713eac8/72efae6d96c34345935250ce5f7b7a53/FLAGbbbc6707d [2020-11-29 19:03:01,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/data/49713eac8/72efae6d96c34345935250ce5f7b7a53 [2020-11-29 19:03:01,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:03:01,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:03:01,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:03:01,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:03:01,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:03:01,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5733b673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01, skipping insertion in model container [2020-11-29 19:03:01,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:03:01,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:03:01,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:03:01,678 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:03:01,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:03:01,808 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:03:01,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01 WrapperNode [2020-11-29 19:03:01,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:03:01,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:03:01,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:03:01,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:03:01,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:03:01,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:03:01,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:03:01,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:03:01,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... [2020-11-29 19:03:01,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:03:01,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:03:01,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:03:01,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:03:01,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/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 19:03:01,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:03:01,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:03:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:03:01,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:03:02,850 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:03:02,850 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-29 19:03:02,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:03:02 BoogieIcfgContainer [2020-11-29 19:03:02,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:03:02,853 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:03:02,853 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:03:02,857 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:03:02,857 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:03:02,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:03:01" (1/3) ... [2020-11-29 19:03:02,859 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5666799c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:03:02, skipping insertion in model container [2020-11-29 19:03:02,859 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:03:02,859 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:03:01" (2/3) ... [2020-11-29 19:03:02,860 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5666799c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:03:02, skipping insertion in model container [2020-11-29 19:03:02,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:03:02,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:03:02" (3/3) ... [2020-11-29 19:03:02,861 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-11-29 19:03:02,908 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:03:02,909 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:03:02,909 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:03:02,909 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:03:02,909 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:03:02,909 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:03:02,909 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:03:02,909 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:03:02,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2020-11-29 19:03:02,947 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 19:03:02,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:03:02,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:03:02,965 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:03:02,966 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:03:02,966 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:03:02,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2020-11-29 19:03:02,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 19:03:02,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:03:02,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:03:02,973 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:03:02,973 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:03:02,978 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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 37#L721true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 41#L729true main_#t~ret68 := valid_product_#res;main_~tmp~7 := main_#t~ret68;havoc main_#t~ret68; 21#L826true assume 0 != main_~tmp~7; 46#L802true ~methAndRunningLastTime~0 := 0; 49#L663true havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, 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; 51#L674-1true [2020-11-29 19:03:02,979 INFO L796 eck$LassoCheckResult]: Loop: 51#L674-1true assume !false; 23#L600true assume test_~splverifierCounter~0 < 4; 42#L601true test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 70#L609true assume !(0 != test_~tmp~5); 71#L609-1true test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 53#L619true assume !(0 != test_~tmp___0~1); 56#L619-1true test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 28#L629true assume 0 != test_~tmp___2~0; 84#L635-1true assume !(0 != ~pumpRunning~0); 72#L426true assume !(0 != ~systemActive~0); 64#L433true havoc __utac_acc__Specification2_spec__2_#t~ret65, __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 73#L884true __utac_acc__Specification2_spec__2_#t~ret65 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret65;havoc __utac_acc__Specification2_spec__2_#t~ret65; 47#L674true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 51#L674-1true [2020-11-29 19:03:02,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:03:02,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:03:02,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:03:02,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452499284] [2020-11-29 19:03:02,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:03:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:03,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:03,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:03,539 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:03:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:03:03,546 INFO L82 PathProgramCache]: Analyzing trace with hash 11341909, now seen corresponding path program 1 times [2020-11-29 19:03:03,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:03:03,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788158318] [2020-11-29 19:03:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:03:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:03,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:03,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:03,586 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:03:03,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:03:03,590 INFO L82 PathProgramCache]: Analyzing trace with hash 844638415, now seen corresponding path program 1 times [2020-11-29 19:03:03,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:03:03,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582819027] [2020-11-29 19:03:03,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:03:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:03:03,771 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 19:03:03,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582819027] [2020-11-29 19:03:03,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:03:03,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:03:03,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610334259] [2020-11-29 19:03:03,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:03:03,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:03:03,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:03:03,909 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 6 states. [2020-11-29 19:03:04,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:03:04,401 INFO L93 Difference]: Finished difference Result 208 states and 295 transitions. [2020-11-29 19:03:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:03:04,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 208 states and 295 transitions. [2020-11-29 19:03:04,419 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2020-11-29 19:03:04,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 208 states to 187 states and 274 transitions. [2020-11-29 19:03:04,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2020-11-29 19:03:04,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 187 [2020-11-29 19:03:04,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 274 transitions. [2020-11-29 19:03:04,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:03:04,442 INFO L691 BuchiCegarLoop]: Abstraction has 187 states and 274 transitions. [2020-11-29 19:03:04,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 274 transitions. [2020-11-29 19:03:04,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 118. [2020-11-29 19:03:04,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-29 19:03:04,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 172 transitions. [2020-11-29 19:03:04,485 INFO L714 BuchiCegarLoop]: Abstraction has 118 states and 172 transitions. [2020-11-29 19:03:04,485 INFO L594 BuchiCegarLoop]: Abstraction has 118 states and 172 transitions. [2020-11-29 19:03:04,485 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:03:04,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 172 transitions. [2020-11-29 19:03:04,488 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 82 [2020-11-29 19:03:04,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:03:04,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:03:04,489 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:03:04,489 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:03:04,489 INFO L794 eck$LassoCheckResult]: Stem: 348#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 316#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 317#L721 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 355#L729 main_#t~ret68 := valid_product_#res;main_~tmp~7 := main_#t~ret68;havoc main_#t~ret68; 327#L826 assume 0 != main_~tmp~7; 328#L802 ~methAndRunningLastTime~0 := 0; 364#L663 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, 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; 366#L674-1 [2020-11-29 19:03:04,490 INFO L796 eck$LassoCheckResult]: Loop: 366#L674-1 assume !false; 330#L600 assume test_~splverifierCounter~0 < 4; 331#L601 test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 360#L609 assume !(0 != test_~tmp~5); 326#L609-1 test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 370#L619 assume !(0 != test_~tmp___0~1); 354#L619-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 337#L629 assume 0 != test_~tmp___2~0; 339#L635-1 assume !(0 != ~pumpRunning~0); 383#L426 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 375#L458 assume !(0 == ~pumpRunning~0); 361#L433 havoc __utac_acc__Specification2_spec__2_#t~ret65, __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 379#L884 __utac_acc__Specification2_spec__2_#t~ret65 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret65;havoc __utac_acc__Specification2_spec__2_#t~ret65; 365#L674 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 366#L674-1 [2020-11-29 19:03:04,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:03:04,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:03:04,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:03:04,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364948505] [2020-11-29 19:03:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:03:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:04,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:04,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:04,597 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:03:04,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:03:04,598 INFO L82 PathProgramCache]: Analyzing trace with hash 319988419, now seen corresponding path program 1 times [2020-11-29 19:03:04,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:03:04,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94378719] [2020-11-29 19:03:04,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:03:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:03:04,615 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 19:03:04,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94378719] [2020-11-29 19:03:04,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:03:04,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:03:04,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801344227] [2020-11-29 19:03:04,616 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:03:04,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:03:04,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:03:04,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:03:04,618 INFO L87 Difference]: Start difference. First operand 118 states and 172 transitions. cyclomatic complexity: 57 Second operand 3 states. [2020-11-29 19:03:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:03:04,714 INFO L93 Difference]: Finished difference Result 160 states and 221 transitions. [2020-11-29 19:03:04,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:03:04,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 221 transitions. [2020-11-29 19:03:04,720 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2020-11-29 19:03:04,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 221 transitions. [2020-11-29 19:03:04,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2020-11-29 19:03:04,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2020-11-29 19:03:04,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 221 transitions. [2020-11-29 19:03:04,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:03:04,727 INFO L691 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2020-11-29 19:03:04,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 221 transitions. [2020-11-29 19:03:04,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-11-29 19:03:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-29 19:03:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 221 transitions. [2020-11-29 19:03:04,739 INFO L714 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2020-11-29 19:03:04,739 INFO L594 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2020-11-29 19:03:04,739 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:03:04,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 221 transitions. [2020-11-29 19:03:04,741 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2020-11-29 19:03:04,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:03:04,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:03:04,745 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:03:04,747 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 19:03:04,748 INFO L794 eck$LassoCheckResult]: Stem: 631#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 600#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 601#L721 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 637#L729 main_#t~ret68 := valid_product_#res;main_~tmp~7 := main_#t~ret68;havoc main_#t~ret68; 611#L826 assume 0 != main_~tmp~7; 612#L802 ~methAndRunningLastTime~0 := 0; 653#L663 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, 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; 654#L674-1 [2020-11-29 19:03:04,748 INFO L796 eck$LassoCheckResult]: Loop: 654#L674-1 assume !false; 614#L600 assume test_~splverifierCounter~0 < 4; 615#L601 test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 747#L609 assume !(0 != test_~tmp~5); 743#L609-1 test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 660#L619 assume !(0 != test_~tmp___0~1); 636#L619-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 665#L629 assume 0 != test_~tmp___2~0; 734#L635-1 assume !(0 != ~pumpRunning~0); 682#L426 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 666#L458 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret60, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 667#L924 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 619#L929 isHighWaterLevel_#t~ret60 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret60;havoc isHighWaterLevel_#t~ret60; 620#L560 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 613#L560-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 594#L566 processEnvironment_#t~ret42 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret42;havoc processEnvironment_#t~ret42; 595#L462 assume !(0 != processEnvironment_~tmp~3); 645#L433 havoc __utac_acc__Specification2_spec__2_#t~ret65, __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 683#L884 __utac_acc__Specification2_spec__2_#t~ret65 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret65;havoc __utac_acc__Specification2_spec__2_#t~ret65; 684#L674 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 654#L674-1 [2020-11-29 19:03:04,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:03:04,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:03:04,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:03:04,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549806416] [2020-11-29 19:03:04,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:03:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:04,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:04,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:04,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:03:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:03:04,863 INFO L82 PathProgramCache]: Analyzing trace with hash 333532015, now seen corresponding path program 1 times [2020-11-29 19:03:04,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:03:04,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585241899] [2020-11-29 19:03:04,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:03:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:04,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:04,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:04,877 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:03:04,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:03:04,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1499108789, now seen corresponding path program 1 times [2020-11-29 19:03:04,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:03:04,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048487394] [2020-11-29 19:03:04,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:03:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:04,931 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:03:04,991 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:03:05,012 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:03:05,178 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-11-29 19:03:05,395 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-29 19:04:24,108 WARN L193 SmtUtils]: Spent 1.31 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:05:18,889 WARN L193 SmtUtils]: Spent 54.73 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:05:19,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:05:19 BoogieIcfgContainer [2020-11-29 19:05:19,085 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:05:19,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:05:19,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:05:19,087 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:05:19,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:03:02" (3/4) ... [2020-11-29 19:05:19,091 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:05:19,142 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_42633175-feeb-4307-8850-79dcb19c83eb/bin/uautomizer/witness.graphml [2020-11-29 19:05:19,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:05:19,144 INFO L168 Benchmark]: Toolchain (without parser) took 137844.94 ms. Allocated memory was 83.9 MB in the beginning and 148.9 MB in the end (delta: 65.0 MB). Free memory was 53.0 MB in the beginning and 80.6 MB in the end (delta: -27.7 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:19,144 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 83.9 MB. Free memory was 43.5 MB in the beginning and 43.5 MB in the end (delta: 41.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:19,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.05 ms. Allocated memory is still 83.9 MB. Free memory was 52.8 MB in the beginning and 51.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:19,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.74 ms. Allocated memory is still 83.9 MB. Free memory was 51.4 MB in the beginning and 48.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:19,146 INFO L168 Benchmark]: Boogie Preprocessor took 39.60 ms. Allocated memory is still 83.9 MB. Free memory was 48.4 MB in the beginning and 46.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:19,147 INFO L168 Benchmark]: RCFGBuilder took 930.13 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 46.5 MB in the beginning and 59.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:19,148 INFO L168 Benchmark]: BuchiAutomizer took 136232.50 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 59.6 MB in the beginning and 82.7 MB in the end (delta: -23.1 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:19,148 INFO L168 Benchmark]: Witness Printer took 56.06 ms. Allocated memory is still 148.9 MB. Free memory was 82.7 MB in the beginning and 80.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:05:19,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 83.9 MB. Free memory was 43.5 MB in the beginning and 43.5 MB in the end (delta: 41.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 509.05 ms. Allocated memory is still 83.9 MB. Free memory was 52.8 MB in the beginning and 51.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.74 ms. Allocated memory is still 83.9 MB. Free memory was 51.4 MB in the beginning and 48.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.60 ms. Allocated memory is still 83.9 MB. Free memory was 48.4 MB in the beginning and 46.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 930.13 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 46.5 MB in the beginning and 59.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 136232.50 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 59.6 MB in the beginning and 82.7 MB in the end (delta: -23.1 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. * Witness Printer took 56.06 ms. Allocated memory is still 148.9 MB. Free memory was 82.7 MB in the beginning and 80.6 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 136.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 135.3s. Construction of modules took 0.4s. 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, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 232 SDtfs, 608 SDslu, 569 SDs, 0 SdLazy, 60 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 599]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11770} State at position 1 is {NULL=0, NULL=11799, NULL=11770, NULL=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=11791, NULL=0, NULL=11777, NULL=11783, cleanupTimeShifts=4, NULL=11786, NULL=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ef542e7=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=11795, NULL=11792, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, \result=1, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=11775, tmp___0=0, NULL=11773, methAndRunningLastTime=0, NULL=11793, NULL=11800, tmp=0, head=0, NULL=0, NULL=0, NULL=11779, NULL=0, NULL=0, NULL=0, NULL=11776, retValue_acc=0, NULL=11790, NULL=11784, tmp___0=0, NULL=11794, NULL=0, NULL=11781, NULL=11798, NULL=11778, NULL=11797, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14505d98=0, NULL=0, NULL=0, systemActive=1, retValue_acc=0, \result=0, NULL=11782, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23256b0a=0, NULL=0, NULL=0, NULL=0, NULL=11772, NULL=11788, \result=0, NULL=0, NULL=11774, retValue_acc=1, NULL=11771, tmp___2=62, retValue_acc=1, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=11780, NULL=11789, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dca58c6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@369aa987=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c4cd334=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b5a77af=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46be0d59=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e81971b=0, NULL=11796, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L418] int pumpRunning = 0; [L419] int systemActive = 1; [L657] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L817] int retValue_acc ; [L818] int tmp ; [L725] int retValue_acc ; [L728] retValue_acc = 1 [L729] return (retValue_acc); [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) [L662] methAndRunningLastTime = 0 [L590] int splverifierCounter ; [L591] int tmp ; [L592] int tmp___0 ; [L593] int tmp___1 ; [L594] int tmp___2 ; [L597] splverifierCounter = 0 Loop: [L599] COND TRUE 1 [L601] COND TRUE splverifierCounter < 4 [L607] tmp = __VERIFIER_nondet_int() [L609] COND FALSE !(\read(tmp)) [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND FALSE !(\read(tmp___0)) [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) [L426] COND FALSE !(\read(pumpRunning)) [L433] COND TRUE \read(systemActive) [L455] int tmp ; [L458] COND TRUE ! pumpRunning [L552] int retValue_acc ; [L553] int tmp ; [L554] int tmp___0 ; [L921] int retValue_acc ; [L924] COND TRUE waterLevel < 2 [L925] retValue_acc = 1 [L926] return (retValue_acc); [L558] tmp = isHighWaterSensorDry() [L560] COND TRUE \read(tmp) [L561] tmp___0 = 0 [L565] retValue_acc = tmp___0 [L566] return (retValue_acc); [L460] tmp = isHighWaterLevel() [L462] COND FALSE !(\read(tmp)) [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); [L672] tmp = isMethaneLevelCritical() [L674] COND FALSE !(\read(tmp)) [L690] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...