./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product47.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_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/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 58d8e3bdac126218d105f0be97d14e97f305aadd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:17:01,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:17:01,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:17:01,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:17:01,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:17:01,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:17:01,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:17:01,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:17:01,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:17:01,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:17:01,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:17:01,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:17:01,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:17:01,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:17:01,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:17:01,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:17:01,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:17:01,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:17:01,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:17:01,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:17:01,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:17:01,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:17:01,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:17:01,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:17:01,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:17:01,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:17:01,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:17:01,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:17:01,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:17:01,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:17:01,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:17:01,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:17:01,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:17:01,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:17:01,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:17:01,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:17:01,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:17:01,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:17:01,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:17:01,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:17:01,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:17:01,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:17:01,251 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:17:01,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:17:01,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:17:01,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:17:01,255 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:17:01,255 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:17:01,256 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:17:01,256 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:17:01,256 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:17:01,257 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:17:01,258 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:17:01,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:17:01,259 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:17:01,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:17:01,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:17:01,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:17:01,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:17:01,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:17:01,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:17:01,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:17:01,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:17:01,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:17:01,263 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:17:01,263 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:17:01,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:17:01,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:17:01,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:17:01,264 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:17:01,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:17:01,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:17:01,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:17:01,268 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:17:01,269 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:17:01,270 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_db4b91ec-d58f-419f-8881-ad6ea695fb34/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58d8e3bdac126218d105f0be97d14e97f305aadd [2020-11-29 20:17:01,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:17:01,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:17:01,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:17:01,689 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:17:01,691 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:17:01,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2020-11-29 20:17:01,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/data/03ac1aa5e/0e7cf217afa440c9a9ed865ba9ada8ab/FLAGf2493b0b8 [2020-11-29 20:17:02,542 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:17:02,543 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2020-11-29 20:17:02,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/data/03ac1aa5e/0e7cf217afa440c9a9ed865ba9ada8ab/FLAGf2493b0b8 [2020-11-29 20:17:02,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/data/03ac1aa5e/0e7cf217afa440c9a9ed865ba9ada8ab [2020-11-29 20:17:02,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:17:02,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:17:02,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:17:02,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:17:02,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:17:02,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:17:02" (1/1) ... [2020-11-29 20:17:02,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e40ad41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:02, skipping insertion in model container [2020-11-29 20:17:02,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:17:02" (1/1) ... [2020-11-29 20:17:02,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:17:02,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:17:03,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:17:03,456 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:17:03,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:17:03,617 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:17:03,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03 WrapperNode [2020-11-29 20:17:03,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:17:03,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:17:03,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:17:03,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:17:03,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:17:03,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:17:03,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:17:03,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:17:03,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... [2020-11-29 20:17:03,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:17:03,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:17:03,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:17:03,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:17:03,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:17:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:17:03,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:17:03,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:17:03,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:17:05,367 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:17:05,368 INFO L298 CfgBuilder]: Removed 202 assume(true) statements. [2020-11-29 20:17:05,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:05 BoogieIcfgContainer [2020-11-29 20:17:05,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:17:05,371 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:17:05,371 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:17:05,375 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:17:05,376 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:17:05,377 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:17:02" (1/3) ... [2020-11-29 20:17:05,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@718a8b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:17:05, skipping insertion in model container [2020-11-29 20:17:05,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:17:05,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:03" (2/3) ... [2020-11-29 20:17:05,379 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@718a8b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:17:05, skipping insertion in model container [2020-11-29 20:17:05,379 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:17:05,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:05" (3/3) ... [2020-11-29 20:17:05,381 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2020-11-29 20:17:05,434 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:17:05,434 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:17:05,434 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:17:05,434 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:17:05,434 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:17:05,435 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:17:05,435 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:17:05,435 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:17:05,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states. [2020-11-29 20:17:05,493 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2020-11-29 20:17:05,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:05,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:05,503 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:05,503 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:05,504 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:17:05,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states. [2020-11-29 20:17:05,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2020-11-29 20:17:05,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:05,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:05,515 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:05,516 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:05,520 INFO L794 eck$LassoCheckResult]: Stem: 93#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 39#L857true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 64#L865true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 96#L132true assume 0 != main_~tmp~0; 67#L105true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L808-1true [2020-11-29 20:17:05,522 INFO L796 eck$LassoCheckResult]: Loop: 19#L808-1true assume !false; 31#L158true assume test_~splverifierCounter~0 < 4; 117#L159true test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 112#L167true assume !(0 != test_~tmp~1); 109#L167-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 44#L177true assume !(0 != test_~tmp___0~0); 41#L177-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 90#L187true assume 0 != test_~tmp___2~0; 76#L193-1true assume !(0 != ~pumpRunning~0); 60#L229true assume !(0 != ~systemActive~0); 122#L236true havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 54#L945true __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 17#L808true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 19#L808-1true [2020-11-29 20:17:05,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:05,529 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 20:17:05,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:05,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792969985] [2020-11-29 20:17:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:05,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:06,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:06,208 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:06,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:06,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1670724659, now seen corresponding path program 1 times [2020-11-29 20:17:06,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:06,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144633726] [2020-11-29 20:17:06,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:06,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:06,228 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:06,236 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:06,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash 43554279, now seen corresponding path program 1 times [2020-11-29 20:17:06,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:06,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856797606] [2020-11-29 20:17:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:06,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856797606] [2020-11-29 20:17:06,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:06,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:17:06,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732457454] [2020-11-29 20:17:06,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:06,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:17:06,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:17:06,666 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 6 states. [2020-11-29 20:17:07,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:07,060 INFO L93 Difference]: Finished difference Result 300 states and 426 transitions. [2020-11-29 20:17:07,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:17:07,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 300 states and 426 transitions. [2020-11-29 20:17:07,084 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 193 [2020-11-29 20:17:07,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 300 states to 279 states and 405 transitions. [2020-11-29 20:17:07,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2020-11-29 20:17:07,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2020-11-29 20:17:07,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 405 transitions. [2020-11-29 20:17:07,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:17:07,108 INFO L691 BuchiCegarLoop]: Abstraction has 279 states and 405 transitions. [2020-11-29 20:17:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 405 transitions. [2020-11-29 20:17:07,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 162. [2020-11-29 20:17:07,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-29 20:17:07,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 234 transitions. [2020-11-29 20:17:07,157 INFO L714 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2020-11-29 20:17:07,157 INFO L594 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2020-11-29 20:17:07,157 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:17:07,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 234 transitions. [2020-11-29 20:17:07,160 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2020-11-29 20:17:07,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:07,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:07,162 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:07,162 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:07,162 INFO L794 eck$LassoCheckResult]: Stem: 562#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 465#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 466#L857 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 504#L865 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 546#L132 assume 0 != main_~tmp~0; 551#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 474#L808-1 [2020-11-29 20:17:07,163 INFO L796 eck$LassoCheckResult]: Loop: 474#L808-1 assume !false; 476#L158 assume test_~splverifierCounter~0 < 4; 492#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 569#L167 assume !(0 != test_~tmp~1); 459#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 512#L177 assume !(0 != test_~tmp___0~0); 507#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 508#L187 assume 0 != test_~tmp___2~0; 557#L193-1 assume !(0 != ~pumpRunning~0); 539#L229 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 540#L287 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret12, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 553#L261-1 assume !(0 == ~pumpRunning~0); 509#L236 havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 530#L945 __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 473#L808 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 474#L808-1 [2020-11-29 20:17:07,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:07,163 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 20:17:07,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:07,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480021192] [2020-11-29 20:17:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:07,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:07,303 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:07,339 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:07,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:07,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1966055759, now seen corresponding path program 1 times [2020-11-29 20:17:07,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:07,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748292554] [2020-11-29 20:17:07,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:07,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748292554] [2020-11-29 20:17:07,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:07,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:07,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872804816] [2020-11-29 20:17:07,374 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:17:07,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:07,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:07,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:07,376 INFO L87 Difference]: Start difference. First operand 162 states and 234 transitions. cyclomatic complexity: 75 Second operand 3 states. [2020-11-29 20:17:07,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:07,541 INFO L93 Difference]: Finished difference Result 201 states and 274 transitions. [2020-11-29 20:17:07,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:07,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 274 transitions. [2020-11-29 20:17:07,546 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2020-11-29 20:17:07,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 274 transitions. [2020-11-29 20:17:07,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2020-11-29 20:17:07,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2020-11-29 20:17:07,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 274 transitions. [2020-11-29 20:17:07,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:17:07,559 INFO L691 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2020-11-29 20:17:07,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 274 transitions. [2020-11-29 20:17:07,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2020-11-29 20:17:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-29 20:17:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 274 transitions. [2020-11-29 20:17:07,587 INFO L714 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2020-11-29 20:17:07,587 INFO L594 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2020-11-29 20:17:07,587 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:17:07,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 274 transitions. [2020-11-29 20:17:07,590 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2020-11-29 20:17:07,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:07,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:07,591 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:07,591 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] [2020-11-29 20:17:07,592 INFO L794 eck$LassoCheckResult]: Stem: 938#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 834#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 835#L857 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 875#L865 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 919#L132 assume 0 != main_~tmp~0; 924#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 843#L808-1 [2020-11-29 20:17:07,592 INFO L796 eck$LassoCheckResult]: Loop: 843#L808-1 assume !false; 845#L158 assume test_~splverifierCounter~0 < 4; 862#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 1006#L167 assume !(0 != test_~tmp~1); 1004#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 1003#L177 assume !(0 != test_~tmp___0~0); 878#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 879#L187 assume 0 != test_~tmp___2~0; 931#L193-1 assume !(0 != ~pumpRunning~0); 911#L229 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 912#L287 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret12, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 925#L261-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret32, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 913#L953-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 914#L958-1 isHighWaterLevel_#t~ret32 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret32;havoc isHighWaterLevel_#t~ret32; 840#L406-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 841#L406-5 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 846#L412-1 processEnvironment__wrappee__methaneQuery_#t~ret12 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~2 := processEnvironment__wrappee__methaneQuery_#t~ret12;havoc processEnvironment__wrappee__methaneQuery_#t~ret12; 891#L265-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2); 880#L236 havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 999#L945 __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 842#L808 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 843#L808-1 [2020-11-29 20:17:07,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:07,593 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 20:17:07,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:07,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334987588] [2020-11-29 20:17:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:07,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:07,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:07,787 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:07,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1687938723, now seen corresponding path program 1 times [2020-11-29 20:17:07,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:07,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757850311] [2020-11-29 20:17:07,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:07,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757850311] [2020-11-29 20:17:07,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:07,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:17:07,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839039437] [2020-11-29 20:17:07,840 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:17:07,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:07,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:17:07,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:17:07,842 INFO L87 Difference]: Start difference. First operand 201 states and 274 transitions. cyclomatic complexity: 76 Second operand 4 states. [2020-11-29 20:17:08,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:08,043 INFO L93 Difference]: Finished difference Result 567 states and 762 transitions. [2020-11-29 20:17:08,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:17:08,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 567 states and 762 transitions. [2020-11-29 20:17:08,053 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 410 [2020-11-29 20:17:08,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 567 states to 567 states and 762 transitions. [2020-11-29 20:17:08,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 567 [2020-11-29 20:17:08,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 567 [2020-11-29 20:17:08,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 567 states and 762 transitions. [2020-11-29 20:17:08,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:17:08,065 INFO L691 BuchiCegarLoop]: Abstraction has 567 states and 762 transitions. [2020-11-29 20:17:08,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states and 762 transitions. [2020-11-29 20:17:08,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 213. [2020-11-29 20:17:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-11-29 20:17:08,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 286 transitions. [2020-11-29 20:17:08,087 INFO L714 BuchiCegarLoop]: Abstraction has 213 states and 286 transitions. [2020-11-29 20:17:08,087 INFO L594 BuchiCegarLoop]: Abstraction has 213 states and 286 transitions. [2020-11-29 20:17:08,087 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 20:17:08,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 286 transitions. [2020-11-29 20:17:08,090 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 150 [2020-11-29 20:17:08,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:08,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:08,092 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:08,092 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] [2020-11-29 20:17:08,093 INFO L794 eck$LassoCheckResult]: Stem: 1732#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1612#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1613#L857 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1655#L865 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1703#L132 assume 0 != main_~tmp~0; 1710#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1711#L808-1 [2020-11-29 20:17:08,093 INFO L796 eck$LassoCheckResult]: Loop: 1711#L808-1 assume !false; 1787#L158 assume test_~splverifierCounter~0 < 4; 1788#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 1741#L167 assume !(0 != test_~tmp~1); 1606#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 1739#L177 assume !(0 != test_~tmp___0~0); 1658#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 1659#L187 assume 0 != test_~tmp___2~0; 1793#L193-1 assume !(0 != ~pumpRunning~0); 1693#L229 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1694#L287 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret12, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 1712#L261-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret32, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1695#L953-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1696#L958-1 isHighWaterLevel_#t~ret32 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret32;havoc isHighWaterLevel_#t~ret32; 1618#L406-3 assume !(0 != isHighWaterLevel_~tmp~5);isHighWaterLevel_~tmp___0~1 := 1; 1619#L406-5 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 1624#L412-1 processEnvironment__wrappee__methaneQuery_#t~ret12 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~2 := processEnvironment__wrappee__methaneQuery_#t~ret12;havoc processEnvironment__wrappee__methaneQuery_#t~ret12; 1671#L265-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2); 1660#L236 havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1792#L945 __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 1790#L808 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 1711#L808-1 [2020-11-29 20:17:08,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:08,094 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-11-29 20:17:08,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:08,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788015536] [2020-11-29 20:17:08,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,134 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,174 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,186 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:08,187 INFO L82 PathProgramCache]: Analyzing trace with hash 87068639, now seen corresponding path program 1 times [2020-11-29 20:17:08,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:08,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705270666] [2020-11-29 20:17:08,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:17:08,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705270666] [2020-11-29 20:17:08,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:08,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:17:08,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674321650] [2020-11-29 20:17:08,247 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:17:08,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:08,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:17:08,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:17:08,248 INFO L87 Difference]: Start difference. First operand 213 states and 286 transitions. cyclomatic complexity: 76 Second operand 5 states. [2020-11-29 20:17:08,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:08,505 INFO L93 Difference]: Finished difference Result 660 states and 880 transitions. [2020-11-29 20:17:08,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:17:08,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 660 states and 880 transitions. [2020-11-29 20:17:08,516 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 484 [2020-11-29 20:17:08,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 660 states to 660 states and 880 transitions. [2020-11-29 20:17:08,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 660 [2020-11-29 20:17:08,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 660 [2020-11-29 20:17:08,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 660 states and 880 transitions. [2020-11-29 20:17:08,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:17:08,529 INFO L691 BuchiCegarLoop]: Abstraction has 660 states and 880 transitions. [2020-11-29 20:17:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states and 880 transitions. [2020-11-29 20:17:08,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 231. [2020-11-29 20:17:08,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-11-29 20:17:08,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 304 transitions. [2020-11-29 20:17:08,558 INFO L714 BuchiCegarLoop]: Abstraction has 231 states and 304 transitions. [2020-11-29 20:17:08,558 INFO L594 BuchiCegarLoop]: Abstraction has 231 states and 304 transitions. [2020-11-29 20:17:08,558 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 20:17:08,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 304 transitions. [2020-11-29 20:17:08,560 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 162 [2020-11-29 20:17:08,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:08,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:08,562 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:08,563 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] [2020-11-29 20:17:08,563 INFO L794 eck$LassoCheckResult]: Stem: 2612#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~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2503#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 2504#L857 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 2540#L865 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 2585#L132 assume 0 != main_~tmp~0; 2592#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2593#L808-1 [2020-11-29 20:17:08,564 INFO L796 eck$LassoCheckResult]: Loop: 2593#L808-1 assume !false; 2683#L158 assume test_~splverifierCounter~0 < 4; 2626#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 2624#L167 assume !(0 != test_~tmp~1); 2493#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 2549#L177 assume !(0 != test_~tmp___0~0); 2543#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 2544#L187 assume 0 != test_~tmp___2~0; 2602#L193-1 assume !(0 != ~pumpRunning~0); 2603#L229 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2594#L287 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret12, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 2595#L261-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret32, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2578#L953-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2580#L958-1 isHighWaterLevel_#t~ret32 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret32;havoc isHighWaterLevel_#t~ret32; 2640#L406-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 2641#L406-5 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 2634#L412-1 processEnvironment__wrappee__methaneQuery_#t~ret12 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~2 := processEnvironment__wrappee__methaneQuery_#t~ret12;havoc processEnvironment__wrappee__methaneQuery_#t~ret12; 2635#L265-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2); 2545#L236 havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2687#L945 __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 2685#L808 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 2593#L808-1 [2020-11-29 20:17:08,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:08,573 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 5 times [2020-11-29 20:17:08,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:08,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857659352] [2020-11-29 20:17:08,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,726 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:08,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1926970203, now seen corresponding path program 1 times [2020-11-29 20:17:08,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:08,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130426001] [2020-11-29 20:17:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:08,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:08,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1911925899, now seen corresponding path program 1 times [2020-11-29 20:17:08,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:08,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663368114] [2020-11-29 20:17:08,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,863 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:09,051 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 20:18:41,689 WARN L193 SmtUtils]: Spent 1.54 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 20:19:43,710 WARN L193 SmtUtils]: Spent 1.03 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 20:19:44,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:19:44 BoogieIcfgContainer [2020-11-29 20:19:44,066 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:19:44,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:19:44,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:19:44,067 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:19:44,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:05" (3/4) ... [2020-11-29 20:19:44,070 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:19:44,131 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db4b91ec-d58f-419f-8881-ad6ea695fb34/bin/uautomizer/witness.graphml [2020-11-29 20:19:44,131 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:19:44,132 INFO L168 Benchmark]: Toolchain (without parser) took 161316.88 ms. Allocated memory was 107.0 MB in the beginning and 188.7 MB in the end (delta: 81.8 MB). Free memory was 75.7 MB in the beginning and 129.0 MB in the end (delta: -53.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:44,133 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 75.5 MB. Free memory is still 33.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:19:44,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.75 ms. Allocated memory is still 107.0 MB. Free memory was 75.4 MB in the beginning and 73.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:44,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.72 ms. Allocated memory is still 107.0 MB. Free memory was 72.6 MB in the beginning and 69.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:44,134 INFO L168 Benchmark]: Boogie Preprocessor took 61.27 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 66.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:44,135 INFO L168 Benchmark]: RCFGBuilder took 1575.06 ms. Allocated memory is still 107.0 MB. Free memory was 66.3 MB in the beginning and 52.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:44,139 INFO L168 Benchmark]: BuchiAutomizer took 158694.67 ms. Allocated memory was 107.0 MB in the beginning and 188.7 MB in the end (delta: 81.8 MB). Free memory was 52.4 MB in the beginning and 131.9 MB in the end (delta: -79.6 MB). Peak memory consumption was 94.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:44,140 INFO L168 Benchmark]: Witness Printer took 64.38 ms. Allocated memory is still 188.7 MB. Free memory was 131.9 MB in the beginning and 129.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:44,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 75.5 MB. Free memory is still 33.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 801.75 ms. Allocated memory is still 107.0 MB. Free memory was 75.4 MB in the beginning and 73.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.72 ms. Allocated memory is still 107.0 MB. Free memory was 72.6 MB in the beginning and 69.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.27 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 66.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1575.06 ms. Allocated memory is still 107.0 MB. Free memory was 66.3 MB in the beginning and 52.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 158694.67 ms. Allocated memory was 107.0 MB in the beginning and 188.7 MB in the end (delta: 81.8 MB). Free memory was 52.4 MB in the beginning and 131.9 MB in the end (delta: -79.6 MB). Peak memory consumption was 94.7 MB. Max. memory is 16.1 GB. * Witness Printer took 64.38 ms. Allocated memory is still 188.7 MB. Free memory was 131.9 MB in the beginning and 129.0 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 231 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 158.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 157.2s. Construction of modules took 0.6s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 900 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 231 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 957 SDtfs, 1900 SDslu, 1792 SDs, 0 SdLazy, 220 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 157]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=21434} State at position 1 is {NULL=0, NULL=0, NULL=21441, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39176349=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b85464c=0, retValue_acc=1, NULL=21434, NULL=0, NULL=21444, methaneLevelCritical=0, NULL=21445, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f31c529=0, retValue_acc=0, tmp___1=0, NULL=21438, NULL=21456, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=21439, NULL=0, NULL=0, waterLevel=1, tmp___0=0, NULL=21458, \result=1, head=0, pumpRunning=0, tmp=1, NULL=21452, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f31c908=0, \result=1, NULL=0, NULL=21461, NULL=0, NULL=0, NULL=0, tmp=1, tmp=1, NULL=21443, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@238758e5=0, tmp=0, head=0, NULL=21436, NULL=0, NULL=21442, tmp=0, NULL=0, retValue_acc=0, NULL=0, NULL=21453, NULL=21451, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@749ee071=60, NULL=21447, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23fba8c1=0, NULL=0, tmp___0=0, NULL=0, NULL=21446, NULL=0, NULL=21449, NULL=21462, tmp___0=0, NULL=21457, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=21435, \result=0, NULL=21450, NULL=21455, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=21440, tmp___2=60, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=21448, NULL=21460, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@561e1c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b85860=0, NULL=21459, NULL=21454, NULL=21437, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e0bb76f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L221] int pumpRunning = 0; [L222] int systemActive = 1; [L601] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L870] int waterLevel = 1; [L871] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L148] int splverifierCounter ; [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L152] int tmp___2 ; [L155] splverifierCounter = 0 Loop: [L157] COND TRUE 1 [L159] COND TRUE splverifierCounter < 4 [L165] tmp = __VERIFIER_nondet_int() [L167] COND FALSE !(\read(tmp)) [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) [L229] COND FALSE !(\read(pumpRunning)) [L236] COND TRUE \read(systemActive) [L284] int tmp ; [L287] COND FALSE !(\read(pumpRunning)) [L258] int tmp ; [L261] COND TRUE ! pumpRunning [L398] int retValue_acc ; [L399] int tmp ; [L400] int tmp___0 ; [L950] int retValue_acc ; [L953] COND TRUE waterLevel < 2 [L954] retValue_acc = 1 [L955] return (retValue_acc); [L404] tmp = isHighWaterSensorDry() [L406] COND TRUE \read(tmp) [L407] tmp___0 = 0 [L411] retValue_acc = tmp___0 [L412] return (retValue_acc); [L263] tmp = isHighWaterLevel() [L265] COND FALSE !(\read(tmp)) [L801] int tmp ; [L802] int tmp___0 ; [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); [L806] tmp = getWaterLevel() [L808] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...