./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.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_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/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 924726723ff3b89961725912ca395f7f3ab1262e ................................................................................................................................................................................................................................................................................................................................................................................. 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 21:34:05,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:34:05,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:34:05,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:34:05,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:34:05,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:34:05,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:34:05,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:34:05,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:34:05,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:34:05,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:34:05,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:34:05,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:34:05,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:34:05,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:34:05,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:34:05,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:34:05,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:34:05,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:34:05,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:34:05,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:34:05,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:34:05,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:34:05,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:34:05,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:34:05,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:34:05,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:34:05,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:34:05,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:34:05,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:34:05,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:34:05,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:34:05,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:34:05,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:34:05,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:34:05,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:34:05,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:34:05,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:34:05,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:34:05,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:34:05,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:34:05,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 21:34:05,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:34:05,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:34:05,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:34:05,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:34:05,318 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:34:05,318 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:34:05,318 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:34:05,319 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:34:05,319 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:34:05,319 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:34:05,319 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:34:05,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:34:05,320 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:34:05,320 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:34:05,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:34:05,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:34:05,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:34:05,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:34:05,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:34:05,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:34:05,321 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:34:05,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:34:05,322 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:34:05,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:34:05,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:34:05,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:34:05,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:34:05,323 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:34:05,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:34:05,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:34:05,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:34:05,324 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:34:05,325 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:34:05,325 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_7e7f52cd-3737-419d-b262-7b276854c39c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 924726723ff3b89961725912ca395f7f3ab1262e [2020-11-29 21:34:05,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:34:05,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:34:05,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:34:05,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:34:05,605 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:34:05,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2020-11-29 21:34:05,673 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/data/058765ded/41383abd9efa481ca1c7083e386acc59/FLAGd31e3dd77 [2020-11-29 21:34:06,212 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:34:06,212 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2020-11-29 21:34:06,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/data/058765ded/41383abd9efa481ca1c7083e386acc59/FLAGd31e3dd77 [2020-11-29 21:34:06,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/data/058765ded/41383abd9efa481ca1c7083e386acc59 [2020-11-29 21:34:06,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:34:06,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:34:06,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:34:06,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:34:06,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:34:06,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:34:06" (1/1) ... [2020-11-29 21:34:06,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a93d793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:06, skipping insertion in model container [2020-11-29 21:34:06,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:34:06" (1/1) ... [2020-11-29 21:34:06,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:34:06,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:34:06,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:34:06,925 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:34:06,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:34:07,020 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:34:07,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07 WrapperNode [2020-11-29 21:34:07,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:34:07,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:34:07,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:34:07,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:34:07,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:34:07,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:34:07,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:34:07,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:34:07,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... [2020-11-29 21:34:07,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:34:07,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:34:07,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:34:07,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:34:07,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/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 21:34:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:34:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:34:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:34:07,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:34:07,939 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:34:07,939 INFO L298 CfgBuilder]: Removed 102 assume(true) statements. [2020-11-29 21:34:07,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:07 BoogieIcfgContainer [2020-11-29 21:34:07,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:34:07,942 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:34:07,942 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:34:07,945 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:34:07,946 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:34:07,946 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:34:06" (1/3) ... [2020-11-29 21:34:07,948 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29d2c79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:34:07, skipping insertion in model container [2020-11-29 21:34:07,948 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:34:07,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:34:07" (2/3) ... [2020-11-29 21:34:07,948 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29d2c79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:34:07, skipping insertion in model container [2020-11-29 21:34:07,948 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:34:07,949 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:07" (3/3) ... [2020-11-29 21:34:07,950 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product13.cil.c [2020-11-29 21:34:07,993 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:34:07,993 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:34:07,993 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:34:07,993 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:34:07,994 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:34:07,994 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:34:07,994 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:34:07,994 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:34:08,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states. [2020-11-29 21:34:08,030 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-29 21:34:08,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:34:08,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:34:08,038 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:34:08,038 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:34:08,038 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:34:08,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states. [2020-11-29 21:34:08,043 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-29 21:34:08,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:34:08,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:34:08,044 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:34:08,044 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:34:08,050 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 7#L-1true havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 37#L871true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 57#L879true main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 30#L618true assume 0 != main_~tmp~4; 71#L591true havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 31#L512-1true [2020-11-29 21:34:08,050 INFO L796 eck$LassoCheckResult]: Loop: 31#L512-1true assume !false; 55#L795true assume test_~splverifierCounter~0 < 4; 68#L796true test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 3#L804true assume !(0 != test_~tmp~7); 5#L804-1true test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 59#L814true assume !(0 != test_~tmp___0~1); 62#L814-1true test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 48#L824true assume 0 != test_~tmp___2~0; 15#L830-2true assume !(0 != ~pumpRunning~0); 50#L641true assume !(0 != ~systemActive~0); 35#L648true havoc __utac_acc__Specification4_spec__1_#t~ret52, __utac_acc__Specification4_spec__1_#t~ret53, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 61#L123true __utac_acc__Specification4_spec__1_#t~ret52 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret52;havoc __utac_acc__Specification4_spec__1_#t~ret52; 28#L512true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 31#L512-1true [2020-11-29 21:34:08,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:08,056 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 21:34:08,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:34:08,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134197931] [2020-11-29 21:34:08,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:34:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:08,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:08,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:08,398 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:34:08,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:08,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899260, now seen corresponding path program 1 times [2020-11-29 21:34:08,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:34:08,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807779277] [2020-11-29 21:34:08,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:34:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:08,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:08,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:08,419 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:34:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:08,423 INFO L82 PathProgramCache]: Analyzing trace with hash 32379678, now seen corresponding path program 1 times [2020-11-29 21:34:08,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:34:08,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530351744] [2020-11-29 21:34:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:34:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:34:08,578 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 21:34:08,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530351744] [2020-11-29 21:34:08,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:34:08,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:34:08,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226212855] [2020-11-29 21:34:08,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:34:08,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:34:08,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:34:08,722 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 6 states. [2020-11-29 21:34:08,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:34:08,962 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2020-11-29 21:34:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:34:08,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 88 transitions. [2020-11-29 21:34:08,968 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2020-11-29 21:34:08,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2020-11-29 21:34:08,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2020-11-29 21:34:08,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2020-11-29 21:34:08,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2020-11-29 21:34:08,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:34:08,976 INFO L691 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2020-11-29 21:34:08,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2020-11-29 21:34:09,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-29 21:34:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-29 21:34:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2020-11-29 21:34:09,006 INFO L714 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2020-11-29 21:34:09,006 INFO L594 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2020-11-29 21:34:09,006 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:34:09,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2020-11-29 21:34:09,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2020-11-29 21:34:09,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:34:09,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:34:09,009 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:34:09,009 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:34:09,010 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 161#L-1 havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 162#L871 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 196#L879 main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 189#L618 assume 0 != main_~tmp~4; 190#L591 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 177#L512-1 [2020-11-29 21:34:09,010 INFO L796 eck$LassoCheckResult]: Loop: 177#L512-1 assume !false; 192#L795 assume test_~splverifierCounter~0 < 4; 208#L796 test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 153#L804 assume !(0 != test_~tmp~7); 155#L804-1 test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 158#L814 assume !(0 != test_~tmp___0~1); 211#L814-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 201#L824 assume 0 != test_~tmp___2~0; 164#L830-2 assume !(0 != ~pumpRunning~0); 169#L641 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 183#L673 assume !(0 != ~pumpRunning~0); 184#L648 havoc __utac_acc__Specification4_spec__1_#t~ret52, __utac_acc__Specification4_spec__1_#t~ret53, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 195#L123 __utac_acc__Specification4_spec__1_#t~ret52 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret52;havoc __utac_acc__Specification4_spec__1_#t~ret52; 185#L512 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 177#L512-1 [2020-11-29 21:34:09,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:09,011 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 21:34:09,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:34:09,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714184045] [2020-11-29 21:34:09,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:34:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:09,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:09,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:09,181 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:34:09,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:09,186 INFO L82 PathProgramCache]: Analyzing trace with hash -619797859, now seen corresponding path program 1 times [2020-11-29 21:34:09,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:34:09,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158069765] [2020-11-29 21:34:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:34:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:09,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:09,205 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:09,210 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:34:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:34:09,212 INFO L82 PathProgramCache]: Analyzing trace with hash 983241667, now seen corresponding path program 1 times [2020-11-29 21:34:09,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:34:09,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121098582] [2020-11-29 21:34:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:34:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:09,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:34:09,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:34:09,358 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:34:09,561 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-11-29 21:35:13,989 WARN L193 SmtUtils]: Spent 1.07 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 21:35:57,660 WARN L193 SmtUtils]: Spent 43.66 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 21:35:57,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 09:35:57 BoogieIcfgContainer [2020-11-29 21:35:57,774 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 21:35:57,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:35:57,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:35:57,778 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:35:57,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:34:07" (3/4) ... [2020-11-29 21:35:57,781 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 21:35:57,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e7f52cd-3737-419d-b262-7b276854c39c/bin/uautomizer/witness.graphml [2020-11-29 21:35:57,842 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:35:57,843 INFO L168 Benchmark]: Toolchain (without parser) took 111322.28 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 58.9 MB in the beginning and 58.7 MB in the end (delta: 210.7 kB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:57,844 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:35:57,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.40 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 56.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:57,847 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.00 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 54.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:57,847 INFO L168 Benchmark]: Boogie Preprocessor took 38.46 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 52.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:57,848 INFO L168 Benchmark]: RCFGBuilder took 808.12 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.1 MB in the beginning and 77.8 MB in the end (delta: -25.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:57,849 INFO L168 Benchmark]: BuchiAutomizer took 109832.52 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 77.8 MB in the beginning and 60.7 MB in the end (delta: 17.1 MB). Peak memory consumption was 80.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:57,850 INFO L168 Benchmark]: Witness Printer took 66.87 ms. Allocated memory is still 134.2 MB. Free memory was 60.7 MB in the beginning and 58.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:35:57,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 495.40 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 56.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.00 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 54.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.46 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 52.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 808.12 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.1 MB in the beginning and 77.8 MB in the end (delta: -25.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 109832.52 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 77.8 MB in the beginning and 60.7 MB in the end (delta: 17.1 MB). Peak memory consumption was 80.5 MB. Max. memory is 16.1 GB. * Witness Printer took 66.87 ms. Allocated memory is still 134.2 MB. Free memory was 60.7 MB in the beginning and 58.7 MB in the end (delta: 2.0 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 109.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 109.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 83 SDtfs, 331 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 794]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=16294, NULL=0, NULL=0, NULL=1, NULL=16306, NULL=0, NULL=16311, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=16293, NULL=16304, methaneLevelCritical=0, NULL=16302, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@901a2fc=0, NULL=16312, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b924d9f=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=16313, NULL=16308, cleanupTimeShifts=4, NULL=16307, NULL=16299, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57cb7aeb=0, NULL=0, systemActive=1, waterLevel=1, NULL=16297, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=16295, NULL=0, NULL=16309, NULL=16310, NULL=16286, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=16289, \result=0, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@571b1392=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fa1e845=0, NULL=16303, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e91812a=59, NULL=16290, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64f0840b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f7cf26d=0, NULL=16292, retValue_acc=1, NULL=16300, NULL=0, tmp=1, NULL=0, NULL=16287, tmp___2=59, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=16298, NULL=16288, NULL=16291, head=0, tmp=0, NULL=0, NULL=0, NULL=16301, NULL=16305, NULL=0, NULL=16296} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L530] int cleanupTimeShifts = 4; [L634] int pumpRunning = 0; [L635] int systemActive = 1; [L609] int retValue_acc ; [L610] int tmp ; [L875] int retValue_acc ; [L878] retValue_acc = 1 [L879] return (retValue_acc); [L616] tmp = valid_product() [L618] COND TRUE \read(tmp) [L785] int splverifierCounter ; [L786] int tmp ; [L787] int tmp___0 ; [L788] int tmp___1 ; [L789] int tmp___2 ; [L792] splverifierCounter = 0 Loop: [L794] COND TRUE 1 [L796] COND TRUE splverifierCounter < 4 [L802] tmp = __VERIFIER_nondet_int() [L804] COND FALSE !(\read(tmp)) [L812] tmp___0 = __VERIFIER_nondet_int() [L814] COND FALSE !(\read(tmp___0)) [L822] tmp___2 = __VERIFIER_nondet_int() [L824] COND TRUE \read(tmp___2) [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L505] int tmp ; [L506] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L510] tmp = getWaterLevel() [L512] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...