./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.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_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/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 aa2e4c647ac78678e11a6f8d79cd56fa06ee0dfe ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:25:43,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:25:43,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:25:43,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:25:43,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:25:43,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:25:43,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:25:43,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:25:43,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:25:43,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:25:43,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:25:43,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:25:43,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:25:43,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:25:43,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:25:43,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:25:43,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:25:43,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:25:43,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:25:43,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:25:43,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:25:43,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:25:43,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:25:43,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:25:43,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:25:43,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:25:43,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:25:43,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:25:43,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:25:43,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:25:43,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:25:43,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:25:43,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:25:43,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:25:43,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:25:43,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:25:43,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:25:43,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:25:43,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:25:43,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:25:43,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:25:43,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:25:43,307 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:25:43,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:25:43,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:25:43,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:25:43,311 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:25:43,311 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:25:43,312 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:25:43,312 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:25:43,313 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:25:43,313 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:25:43,314 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:25:43,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:25:43,315 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:25:43,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:25:43,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:25:43,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:25:43,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:25:43,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:25:43,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:25:43,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:25:43,318 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:25:43,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:25:43,319 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:25:43,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:25:43,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:25:43,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:25:43,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:25:43,321 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:25:43,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:25:43,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:25:43,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:25:43,322 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:25:43,323 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:25:43,324 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_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa2e4c647ac78678e11a6f8d79cd56fa06ee0dfe [2020-11-30 01:25:43,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:25:43,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:25:43,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:25:43,775 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:25:43,778 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:25:43,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2020-11-30 01:25:43,891 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/data/f7381817f/fc7a079391814909bf521f8e0d5415d6/FLAGb8bafa3a9 [2020-11-30 01:25:44,486 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:25:44,486 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2020-11-30 01:25:44,500 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/data/f7381817f/fc7a079391814909bf521f8e0d5415d6/FLAGb8bafa3a9 [2020-11-30 01:25:44,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/data/f7381817f/fc7a079391814909bf521f8e0d5415d6 [2020-11-30 01:25:44,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:25:44,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:25:44,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:25:44,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:25:44,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:25:44,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:25:44" (1/1) ... [2020-11-30 01:25:44,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73058f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:44, skipping insertion in model container [2020-11-30 01:25:44,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:25:44" (1/1) ... [2020-11-30 01:25:44,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:25:44,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:25:45,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:25:45,301 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:25:45,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:25:45,469 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:25:45,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45 WrapperNode [2020-11-30 01:25:45,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:25:45,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:25:45,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:25:45,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:25:45,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:25:45,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:25:45,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:25:45,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:25:45,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... [2020-11-30 01:25:45,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:25:45,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:25:45,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:25:45,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:25:45,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:25:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:25:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:25:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:25:45,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:25:46,989 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:25:46,991 INFO L298 CfgBuilder]: Removed 214 assume(true) statements. [2020-11-30 01:25:46,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:25:46 BoogieIcfgContainer [2020-11-30 01:25:46,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:25:46,996 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:25:46,996 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:25:46,999 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:25:47,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:25:47,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:25:44" (1/3) ... [2020-11-30 01:25:47,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45ea5b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:25:47, skipping insertion in model container [2020-11-30 01:25:47,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:25:47,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:45" (2/3) ... [2020-11-30 01:25:47,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45ea5b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:25:47, skipping insertion in model container [2020-11-30 01:25:47,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:25:47,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:25:46" (3/3) ... [2020-11-30 01:25:47,005 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2020-11-30 01:25:47,073 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:25:47,073 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:25:47,073 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:25:47,073 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:25:47,074 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:25:47,074 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:25:47,074 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:25:47,074 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:25:47,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states. [2020-11-30 01:25:47,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2020-11-30 01:25:47,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:25:47,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:25:47,136 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:47,136 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:47,136 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:25:47,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states. [2020-11-30 01:25:47,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2020-11-30 01:25:47,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:25:47,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:25:47,151 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:47,151 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:47,157 INFO L794 eck$LassoCheckResult]: Stem: 105#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~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~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);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~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 11#L-1true havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 65#L1000true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 82#L1008true main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 37#L659true assume 0 != main_~tmp~4; 74#L631true ~switchedOnBeforeTS~0 := 0; 41#L161true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 89#L182-1true [2020-11-30 01:25:47,158 INFO L796 eck$LassoCheckResult]: Loop: 89#L182-1true assume !false; 85#L694true assume test_~splverifierCounter~0 < 4; 26#L695true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 60#L703true assume !(0 != test_~tmp~5); 36#L703-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 87#L713true assume !(0 != test_~tmp___0~1); 90#L713-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 136#L723true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 5#L731-2true havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 141#L891true __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 91#L171true assume !(0 != ~pumpRunning~0); 127#L762true assume !(0 != ~systemActive~0); 56#L769true havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 32#L125true __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 92#L182true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 89#L182-1true [2020-11-30 01:25:47,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:47,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 01:25:47,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:47,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218242824] [2020-11-30 01:25:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:47,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:47,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:47,762 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:25:47,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:47,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1013869903, now seen corresponding path program 1 times [2020-11-30 01:25:47,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:47,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113190322] [2020-11-30 01:25:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:47,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113190322] [2020-11-30 01:25:47,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:47,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:25:47,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84573903] [2020-11-30 01:25:47,840 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:25:47,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:47,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:25:47,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:25:47,859 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 3 states. [2020-11-30 01:25:47,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:47,915 INFO L93 Difference]: Finished difference Result 141 states and 200 transitions. [2020-11-30 01:25:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:25:47,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 200 transitions. [2020-11-30 01:25:47,927 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-30 01:25:47,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 134 states and 192 transitions. [2020-11-30 01:25:47,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2020-11-30 01:25:47,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2020-11-30 01:25:47,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 192 transitions. [2020-11-30 01:25:47,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:25:47,948 INFO L691 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2020-11-30 01:25:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 192 transitions. [2020-11-30 01:25:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-11-30 01:25:47,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-30 01:25:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2020-11-30 01:25:48,005 INFO L714 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2020-11-30 01:25:48,006 INFO L594 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2020-11-30 01:25:48,006 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:25:48,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 192 transitions. [2020-11-30 01:25:48,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-30 01:25:48,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:25:48,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:25:48,017 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:48,017 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:48,018 INFO L794 eck$LassoCheckResult]: Stem: 411#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~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~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);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~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 310#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 311#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 383#L1008 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 361#L659 assume 0 != main_~tmp~4; 362#L631 ~switchedOnBeforeTS~0 := 0; 367#L161 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 301#L182-1 [2020-11-30 01:25:48,018 INFO L796 eck$LassoCheckResult]: Loop: 301#L182-1 assume !false; 398#L694 assume test_~splverifierCounter~0 < 4; 341#L695 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 342#L703 assume !(0 != test_~tmp~5); 359#L703-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 360#L713 assume !(0 != test_~tmp___0~1); 397#L713-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 400#L723 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 298#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 299#L891 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 401#L171 assume !(0 != ~pumpRunning~0); 387#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 405#L820 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 329#L794-1 assume !(0 == ~pumpRunning~0); 331#L769 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 354#L125 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 355#L182 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 301#L182-1 [2020-11-30 01:25:48,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:48,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 01:25:48,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:48,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725211225] [2020-11-30 01:25:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:48,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:48,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:48,158 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:25:48,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:48,159 INFO L82 PathProgramCache]: Analyzing trace with hash 385675288, now seen corresponding path program 1 times [2020-11-30 01:25:48,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:48,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872931257] [2020-11-30 01:25:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:48,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872931257] [2020-11-30 01:25:48,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:48,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:25:48,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605784116] [2020-11-30 01:25:48,180 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:25:48,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:48,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:25:48,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:25:48,181 INFO L87 Difference]: Start difference. First operand 134 states and 192 transitions. cyclomatic complexity: 60 Second operand 3 states. [2020-11-30 01:25:48,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:48,400 INFO L93 Difference]: Finished difference Result 183 states and 251 transitions. [2020-11-30 01:25:48,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:25:48,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 251 transitions. [2020-11-30 01:25:48,405 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-30 01:25:48,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 251 transitions. [2020-11-30 01:25:48,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2020-11-30 01:25:48,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2020-11-30 01:25:48,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 251 transitions. [2020-11-30 01:25:48,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:25:48,410 INFO L691 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2020-11-30 01:25:48,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 251 transitions. [2020-11-30 01:25:48,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2020-11-30 01:25:48,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-30 01:25:48,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 251 transitions. [2020-11-30 01:25:48,442 INFO L714 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2020-11-30 01:25:48,442 INFO L594 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2020-11-30 01:25:48,442 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:25:48,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 251 transitions. [2020-11-30 01:25:48,446 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-30 01:25:48,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:25:48,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:25:48,449 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:48,449 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, 1, 1, 1] [2020-11-30 01:25:48,450 INFO L794 eck$LassoCheckResult]: Stem: 740#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~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~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);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~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 633#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 634#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 709#L1008 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 683#L659 assume 0 != main_~tmp~4; 684#L631 ~switchedOnBeforeTS~0 := 0; 690#L161 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 622#L182-1 [2020-11-30 01:25:48,451 INFO L796 eck$LassoCheckResult]: Loop: 622#L182-1 assume !false; 725#L694 assume test_~splverifierCounter~0 < 4; 663#L695 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 664#L703 assume !(0 != test_~tmp~5); 681#L703-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 682#L713 assume !(0 != test_~tmp___0~1); 724#L713-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 728#L723 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 624#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 625#L891 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 729#L171 assume !(0 != ~pumpRunning~0); 730#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 734#L820 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 652#L794-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret80, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 653#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 715#L138-1 isHighWaterLevel_#t~ret80 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret80;havoc isHighWaterLevel_#t~ret80; 635#L940-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 636#L940-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 640#L946-1 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 741#L798-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 702#L769 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 676#L125 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 677#L182 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 622#L182-1 [2020-11-30 01:25:48,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:48,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 01:25:48,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:48,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866174887] [2020-11-30 01:25:48,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:48,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:48,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:48,604 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:25:48,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:48,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1093023172, now seen corresponding path program 1 times [2020-11-30 01:25:48,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:48,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418085495] [2020-11-30 01:25:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:48,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418085495] [2020-11-30 01:25:48,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:48,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:25:48,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703551360] [2020-11-30 01:25:48,651 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:25:48,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:48,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:25:48,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:25:48,652 INFO L87 Difference]: Start difference. First operand 183 states and 251 transitions. cyclomatic complexity: 70 Second operand 5 states. [2020-11-30 01:25:48,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:48,946 INFO L93 Difference]: Finished difference Result 517 states and 697 transitions. [2020-11-30 01:25:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:25:48,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 517 states and 697 transitions. [2020-11-30 01:25:48,953 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2020-11-30 01:25:48,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 517 states to 517 states and 697 transitions. [2020-11-30 01:25:48,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 517 [2020-11-30 01:25:48,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 517 [2020-11-30 01:25:48,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 517 states and 697 transitions. [2020-11-30 01:25:48,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:25:48,974 INFO L691 BuchiCegarLoop]: Abstraction has 517 states and 697 transitions. [2020-11-30 01:25:48,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states and 697 transitions. [2020-11-30 01:25:49,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 359. [2020-11-30 01:25:49,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-11-30 01:25:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 481 transitions. [2020-11-30 01:25:49,007 INFO L714 BuchiCegarLoop]: Abstraction has 359 states and 481 transitions. [2020-11-30 01:25:49,007 INFO L594 BuchiCegarLoop]: Abstraction has 359 states and 481 transitions. [2020-11-30 01:25:49,007 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 01:25:49,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 359 states and 481 transitions. [2020-11-30 01:25:49,011 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2020-11-30 01:25:49,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:25:49,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:25:49,014 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:49,014 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, 1, 1, 1, 1, 1] [2020-11-30 01:25:49,014 INFO L794 eck$LassoCheckResult]: Stem: 1456#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~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~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);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~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1349#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 1350#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1425#L1008 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 1401#L659 assume 0 != main_~tmp~4; 1402#L631 ~switchedOnBeforeTS~0 := 0; 1406#L161 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1340#L182-1 [2020-11-30 01:25:49,021 INFO L796 eck$LassoCheckResult]: Loop: 1340#L182-1 assume !false; 1441#L694 assume test_~splverifierCounter~0 < 4; 1381#L695 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 1382#L703 assume !(0 != test_~tmp~5); 1397#L703-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 1398#L713 assume !(0 != test_~tmp___0~1); 1440#L713-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 1446#L723 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1337#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1338#L891 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 1444#L171 assume !(0 != ~pumpRunning~0); 1445#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1450#L820 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1366#L794-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret80, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1367#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1431#L138-1 isHighWaterLevel_#t~ret80 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret80;havoc isHighWaterLevel_#t~ret80; 1351#L940-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1352#L940-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1356#L946-1 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 1457#L798-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1418#L769 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~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; 1392#L125 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 1393#L182 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1447#L891-1 __utac_acc__Specification5_spec__3_#t~ret19 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 1339#L186 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1340#L182-1 [2020-11-30 01:25:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:49,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-30 01:25:49,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:49,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846611313] [2020-11-30 01:25:49,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:49,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:49,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:49,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:25:49,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:49,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1871732577, now seen corresponding path program 1 times [2020-11-30 01:25:49,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:49,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857774325] [2020-11-30 01:25:49,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:49,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:49,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:49,199 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:25:49,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:49,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1935158759, now seen corresponding path program 1 times [2020-11-30 01:25:49,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:49,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584266919] [2020-11-30 01:25:49,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:49,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:49,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:49,324 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:25:49,528 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-30 01:27:19,782 WARN L193 SmtUtils]: Spent 1.50 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 01:28:16,774 WARN L193 SmtUtils]: Spent 56.97 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 01:28:17,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:28:17 BoogieIcfgContainer [2020-11-30 01:28:17,038 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:28:17,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:28:17,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:28:17,039 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:28:17,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:25:46" (3/4) ... [2020-11-30 01:28:17,042 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:28:17,109 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39d044c7-b60a-4c23-91f3-f5a8d24a4aa2/bin/uautomizer/witness.graphml [2020-11-30 01:28:17,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:28:17,110 INFO L168 Benchmark]: Toolchain (without parser) took 152330.37 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 56.9 MB in the beginning and 54.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:17,111 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 92.3 MB. Free memory was 65.6 MB in the beginning and 65.6 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:28:17,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.89 ms. Allocated memory is still 92.3 MB. Free memory was 56.7 MB in the beginning and 57.5 MB in the end (delta: -835.1 kB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:17,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.07 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 53.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:17,113 INFO L168 Benchmark]: Boogie Preprocessor took 54.03 ms. Allocated memory is still 92.3 MB. Free memory was 53.4 MB in the beginning and 50.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:17,114 INFO L168 Benchmark]: RCFGBuilder took 1348.47 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 50.3 MB in the beginning and 58.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:17,114 INFO L168 Benchmark]: BuchiAutomizer took 150042.67 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 57.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 64.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:17,115 INFO L168 Benchmark]: Witness Printer took 70.45 ms. Allocated memory is still 134.2 MB. Free memory was 57.1 MB in the beginning and 54.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:17,127 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 92.3 MB. Free memory was 65.6 MB in the beginning and 65.6 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 688.89 ms. Allocated memory is still 92.3 MB. Free memory was 56.7 MB in the beginning and 57.5 MB in the end (delta: -835.1 kB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.07 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 53.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.03 ms. Allocated memory is still 92.3 MB. Free memory was 53.4 MB in the beginning and 50.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1348.47 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 50.3 MB in the beginning and 58.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 150042.67 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 57.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 64.5 MB. Max. memory is 16.1 GB. * Witness Printer took 70.45 ms. Allocated memory is still 134.2 MB. Free memory was 57.1 MB in the beginning and 54.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 359 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 149.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 149.0s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 158 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 359 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 655 SDtfs, 972 SDslu, 670 SDs, 0 SdLazy, 137 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 693]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12887} State at position 1 is {NULL=0, NULL=12903, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dfc98ed=0, NULL=12887, NULL=12891, NULL=0, NULL=0, NULL=12890, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b2cf8f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5628ab9=0, tmp=0, NULL=0, tmp___1=0, NULL=0, NULL=12895, cleanupTimeShifts=4, NULL=12908, NULL=12906, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=12913, retValue_acc=0, NULL=0, NULL=0, tmp___0=0, tmp=1, NULL=12911, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25c8e6f7=0, tmp=0, NULL=0, NULL=12889, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ce18ba4=0, NULL=0, NULL=0, retValue_acc=0, NULL=12894, NULL=0, NULL=12904, tmp___0=0, NULL=0, NULL=0, NULL=12897, tmp=1, NULL=0, NULL=0, switchedOnBeforeTS=0, NULL=12900, tmp=0, \result=0, NULL=0, systemActive=1, NULL=12915, \result=1, NULL=0, NULL=12914, \result=0, NULL=0, NULL=12909, NULL=0, NULL=0, NULL=12907, tmp___0=0, NULL=12892, \result=0, NULL=12902, NULL=0, NULL=0, NULL=12896, NULL=12910, NULL=12888, NULL=12912, tmp___2=83, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69725b32=0, NULL=12893, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@649558d6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f731743=83, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ae24117=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d06699c=0, NULL=12905, NULL=12898, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a1e8cc0=0, NULL=0, NULL=12899, NULL=12901} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L155] int switchedOnBeforeTS ; [L373] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L570] int cleanupTimeShifts = 4; [L752] int pumpRunning = 0; [L753] int systemActive = 1; [L650] int retValue_acc ; [L651] int tmp ; [L1004] int retValue_acc ; [L1007] retValue_acc = 1 [L1008] return (retValue_acc); [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L160] switchedOnBeforeTS = 0 [L684] int splverifierCounter ; [L685] int tmp ; [L686] int tmp___0 ; [L687] int tmp___1 ; [L688] int tmp___2 ; [L691] splverifierCounter = 0 Loop: [L693] COND TRUE 1 [L695] COND TRUE splverifierCounter < 4 [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND TRUE \read(tmp___2) [L973] systemActive = 1 [L887] int retValue_acc ; [L890] retValue_acc = pumpRunning [L891] return (retValue_acc); [L169] switchedOnBeforeTS = isPumpRunning() [L762] COND FALSE !(\read(pumpRunning)) [L769] COND TRUE \read(systemActive) [L817] int tmp ; [L820] COND FALSE !(\read(pumpRunning)) [L791] int tmp ; [L794] COND TRUE ! pumpRunning [L932] int retValue_acc ; [L933] int tmp ; [L934] int tmp___0 ; [L130] int retValue_acc ; [L133] COND TRUE waterLevel < 2 [L134] retValue_acc = 1 [L135] return (retValue_acc); [L938] tmp = isHighWaterSensorDry() [L940] COND TRUE \read(tmp) [L941] tmp___0 = 0 [L945] retValue_acc = tmp___0 [L946] return (retValue_acc); [L796] tmp = isHighWaterLevel() [L798] COND FALSE !(\read(tmp)) [L175] int tmp ; [L176] int tmp___0 ; [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); [L180] tmp = getWaterLevel() [L182] COND TRUE tmp != 2 [L887] int retValue_acc ; [L890] retValue_acc = pumpRunning [L891] return (retValue_acc); [L184] tmp___0 = isPumpRunning() [L186] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...