./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.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_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/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 288d25dbf636d510765b70dd57b8dfe428e9c588 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:58:17,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:58:17,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:58:17,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:58:17,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:58:17,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:58:17,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:58:17,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:58:17,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:58:17,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:58:17,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:58:17,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:58:17,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:58:17,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:58:17,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:58:17,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:58:17,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:58:17,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:58:17,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:58:17,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:58:17,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:58:17,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:58:17,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:58:17,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:58:17,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:58:17,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:58:17,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:58:17,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:58:17,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:58:17,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:58:17,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:58:17,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:58:17,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:58:17,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:58:17,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:58:17,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:58:17,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:58:17,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:58:17,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:58:17,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:58:17,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:58:17,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:58:17,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:58:17,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:58:17,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:58:17,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:58:17,390 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:58:17,391 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:58:17,391 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:58:17,392 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:58:17,392 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:58:17,392 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:58:17,394 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:58:17,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:58:17,394 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:58:17,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:58:17,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:58:17,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:58:17,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:58:17,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:58:17,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:58:17,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:58:17,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:58:17,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:58:17,397 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:58:17,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:58:17,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:58:17,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:58:17,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:58:17,399 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:58:17,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:58:17,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:58:17,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:58:17,402 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:58:17,404 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:58:17,404 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_187a3374-9313-4c3e-a43e-9b27662fc0b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 288d25dbf636d510765b70dd57b8dfe428e9c588 [2020-11-30 00:58:17,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:58:17,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:58:17,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:58:17,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:58:17,848 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:58:17,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2020-11-30 00:58:17,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/data/3b9d708e9/afff42962dc242d3b9c228732c43be9a/FLAGb4367a539 [2020-11-30 00:58:18,528 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:58:18,528 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2020-11-30 00:58:18,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/data/3b9d708e9/afff42962dc242d3b9c228732c43be9a/FLAGb4367a539 [2020-11-30 00:58:18,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/data/3b9d708e9/afff42962dc242d3b9c228732c43be9a [2020-11-30 00:58:18,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:58:18,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:58:18,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:18,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:58:18,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:58:18,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:18" (1/1) ... [2020-11-30 00:58:18,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1b88e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:18, skipping insertion in model container [2020-11-30 00:58:18,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:18" (1/1) ... [2020-11-30 00:58:18,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:58:18,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:19,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:19,265 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:58:19,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:19,459 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:58:19,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19 WrapperNode [2020-11-30 00:58:19,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:19,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:19,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:58:19,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:58:19,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:19,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:58:19,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:58:19,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:58:19,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... [2020-11-30 00:58:19,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:58:19,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:58:19,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:58:19,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:58:19,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:58:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:58:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:58:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:58:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:58:20,920 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:58:20,921 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-30 00:58:20,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:20 BoogieIcfgContainer [2020-11-30 00:58:20,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:58:20,924 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:58:20,925 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:58:20,929 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:58:20,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:20,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:58:18" (1/3) ... [2020-11-30 00:58:20,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@223924a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:58:20, skipping insertion in model container [2020-11-30 00:58:20,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:20,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:19" (2/3) ... [2020-11-30 00:58:20,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@223924a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:58:20, skipping insertion in model container [2020-11-30 00:58:20,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:20,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:20" (3/3) ... [2020-11-30 00:58:20,936 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2020-11-30 00:58:21,002 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:58:21,002 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:58:21,002 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:58:21,003 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:58:21,003 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:58:21,003 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:58:21,003 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:58:21,003 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:58:21,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-11-30 00:58:21,051 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 00:58:21,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:21,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:21,062 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:21,062 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:21,062 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:58:21,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-11-30 00:58:21,074 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 00:58:21,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:21,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:21,103 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:21,103 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:21,121 INFO L794 eck$LassoCheckResult]: Stem: 80#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 7#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; 43#L923true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 45#L931true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 86#L132true assume 0 != main_~tmp~0; 49#L105true havoc test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 35#L882-1true [2020-11-30 00:58:21,122 INFO L796 eck$LassoCheckResult]: Loop: 35#L882-1true assume !false; 22#L709true assume test_~splverifierCounter~0 < 4; 84#L710true test_~tmp~7 := test_#t~nondet63;havoc test_#t~nondet63; 87#L718true assume !(0 != test_~tmp~7); 88#L718-1true test_~tmp___0~1 := test_#t~nondet64;havoc test_#t~nondet64; 28#L728true assume !(0 != test_~tmp___0~1); 31#L728-1true test_~tmp___2~0 := test_#t~nondet65;havoc test_#t~nondet65; 62#L738true assume 0 != test_~tmp___2~0; 42#L744-2true assume !(0 != ~pumpRunning~0); 39#L527true assume !(0 != ~systemActive~0); 76#L534true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 56#L807-1true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 48#L876true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 35#L882-1true [2020-11-30 00:58:21,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:21,130 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:58:21,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:21,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009468283] [2020-11-30 00:58:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:21,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:21,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:21,838 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:21,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:21,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1679990667, now seen corresponding path program 1 times [2020-11-30 00:58:21,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:21,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914671326] [2020-11-30 00:58:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:21,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:21,886 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:21,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:21,907 INFO L82 PathProgramCache]: Analyzing trace with hash 34288271, now seen corresponding path program 1 times [2020-11-30 00:58:21,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:21,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137051853] [2020-11-30 00:58:21,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:22,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137051853] [2020-11-30 00:58:22,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:22,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:58:22,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655114127] [2020-11-30 00:58:22,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:22,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:58:22,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:22,291 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 6 states. [2020-11-30 00:58:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:22,590 INFO L93 Difference]: Finished difference Result 114 states and 163 transitions. [2020-11-30 00:58:22,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:58:22,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 163 transitions. [2020-11-30 00:58:22,599 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-30 00:58:22,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2020-11-30 00:58:22,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2020-11-30 00:58:22,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2020-11-30 00:58:22,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2020-11-30 00:58:22,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:58:22,618 INFO L691 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 00:58:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2020-11-30 00:58:22,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-30 00:58:22,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-30 00:58:22,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-11-30 00:58:22,662 INFO L714 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 00:58:22,664 INFO L594 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 00:58:22,664 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:58:22,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2020-11-30 00:58:22,672 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-30 00:58:22,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:22,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:22,674 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:22,676 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:22,676 INFO L794 eck$LassoCheckResult]: Stem: 343#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 256#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; 257#L923 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 318#L931 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 321#L132 assume 0 != main_~tmp~0; 325#L105 havoc test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 307#L882-1 [2020-11-30 00:58:22,677 INFO L796 eck$LassoCheckResult]: Loop: 307#L882-1 assume !false; 286#L709 assume test_~splverifierCounter~0 < 4; 287#L710 test_~tmp~7 := test_#t~nondet63;havoc test_#t~nondet63; 346#L718 assume !(0 != test_~tmp~7); 331#L718-1 test_~tmp___0~1 := test_#t~nondet64;havoc test_#t~nondet64; 298#L728 assume !(0 != test_~tmp___0~1); 299#L728-1 test_~tmp___2~0 := test_#t~nondet65;havoc test_#t~nondet65; 302#L738 assume 0 != test_~tmp___2~0; 314#L744-2 assume !(0 != ~pumpRunning~0); 312#L527 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 262#L585 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret43, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 263#L559-1 assume !(0 == ~pumpRunning~0); 269#L534 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 327#L807-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 323#L876 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 307#L882-1 [2020-11-30 00:58:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:22,681 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:58:22,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:22,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006042759] [2020-11-30 00:58:22,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:22,763 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:22,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:22,854 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:22,854 INFO L82 PathProgramCache]: Analyzing trace with hash -2003597172, now seen corresponding path program 1 times [2020-11-30 00:58:22,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:22,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025778667] [2020-11-30 00:58:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:22,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:22,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025778667] [2020-11-30 00:58:22,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:22,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:22,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245322187] [2020-11-30 00:58:22,894 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:58:22,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:22,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:22,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:22,896 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2020-11-30 00:58:23,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:23,062 INFO L93 Difference]: Finished difference Result 154 states and 213 transitions. [2020-11-30 00:58:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:23,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 213 transitions. [2020-11-30 00:58:23,067 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2020-11-30 00:58:23,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 154 states and 213 transitions. [2020-11-30 00:58:23,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2020-11-30 00:58:23,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2020-11-30 00:58:23,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 213 transitions. [2020-11-30 00:58:23,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:58:23,073 INFO L691 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2020-11-30 00:58:23,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 213 transitions. [2020-11-30 00:58:23,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-11-30 00:58:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-30 00:58:23,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 213 transitions. [2020-11-30 00:58:23,092 INFO L714 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2020-11-30 00:58:23,093 INFO L594 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2020-11-30 00:58:23,093 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:58:23,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 213 transitions. [2020-11-30 00:58:23,095 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2020-11-30 00:58:23,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:23,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:23,097 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:23,097 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] [2020-11-30 00:58:23,098 INFO L794 eck$LassoCheckResult]: Stem: 610#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 524#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; 525#L923 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 583#L931 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 586#L132 assume 0 != main_~tmp~0; 591#L105 havoc test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 573#L882-1 [2020-11-30 00:58:23,098 INFO L796 eck$LassoCheckResult]: Loop: 573#L882-1 assume !false; 553#L709 assume test_~splverifierCounter~0 < 4; 554#L710 test_~tmp~7 := test_#t~nondet63;havoc test_#t~nondet63; 613#L718 assume !(0 != test_~tmp~7); 599#L718-1 test_~tmp___0~1 := test_#t~nondet64;havoc test_#t~nondet64; 564#L728 assume !(0 != test_~tmp___0~1); 565#L728-1 test_~tmp___2~0 := test_#t~nondet65;havoc test_#t~nondet65; 568#L738 assume 0 != test_~tmp___2~0; 580#L744-2 assume !(0 != ~pumpRunning~0); 578#L527 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 530#L585 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret43, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 531#L559-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret62, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 600#L847-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 535#L852-1 isHighWaterLevel_#t~ret62 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret62;havoc isHighWaterLevel_#t~ret62; 521#L687-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 522#L687-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 523#L693-1 processEnvironment__wrappee__highWaterSensor_#t~ret43 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret43;havoc processEnvironment__wrappee__highWaterSensor_#t~ret43; 540#L563-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 534#L534 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 594#L807-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 589#L876 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 573#L882-1 [2020-11-30 00:58:23,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:23,099 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:58:23,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:23,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840512490] [2020-11-30 00:58:23,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:23,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:23,226 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:23,254 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:23,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:23,256 INFO L82 PathProgramCache]: Analyzing trace with hash 456147480, now seen corresponding path program 1 times [2020-11-30 00:58:23,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:23,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641187431] [2020-11-30 00:58:23,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:23,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:23,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:23,288 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:23,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:23,289 INFO L82 PathProgramCache]: Analyzing trace with hash 912218674, now seen corresponding path program 1 times [2020-11-30 00:58:23,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:23,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186766083] [2020-11-30 00:58:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:23,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186766083] [2020-11-30 00:58:23,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:23,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:23,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076862866] [2020-11-30 00:58:23,567 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-11-30 00:58:23,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:23,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:58:23,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:23,645 INFO L87 Difference]: Start difference. First operand 154 states and 213 transitions. cyclomatic complexity: 61 Second operand 5 states. [2020-11-30 00:58:24,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:24,038 INFO L93 Difference]: Finished difference Result 513 states and 712 transitions. [2020-11-30 00:58:24,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:58:24,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 513 states and 712 transitions. [2020-11-30 00:58:24,050 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 372 [2020-11-30 00:58:24,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 513 states to 513 states and 712 transitions. [2020-11-30 00:58:24,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 513 [2020-11-30 00:58:24,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 513 [2020-11-30 00:58:24,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 513 states and 712 transitions. [2020-11-30 00:58:24,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:58:24,078 INFO L691 BuchiCegarLoop]: Abstraction has 513 states and 712 transitions. [2020-11-30 00:58:24,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states and 712 transitions. [2020-11-30 00:58:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 302. [2020-11-30 00:58:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-11-30 00:58:24,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 412 transitions. [2020-11-30 00:58:24,133 INFO L714 BuchiCegarLoop]: Abstraction has 302 states and 412 transitions. [2020-11-30 00:58:24,133 INFO L594 BuchiCegarLoop]: Abstraction has 302 states and 412 transitions. [2020-11-30 00:58:24,133 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:58:24,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 412 transitions. [2020-11-30 00:58:24,136 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 212 [2020-11-30 00:58:24,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:24,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:24,138 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:24,139 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:24,139 INFO L794 eck$LassoCheckResult]: Stem: 1306#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1211#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; 1212#L923 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1270#L931 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1274#L132 assume 0 != main_~tmp~0; 1278#L105 havoc test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1279#L882-1 [2020-11-30 00:58:24,139 INFO L796 eck$LassoCheckResult]: Loop: 1279#L882-1 assume !false; 1238#L709 assume test_~splverifierCounter~0 < 4; 1239#L710 test_~tmp~7 := test_#t~nondet63;havoc test_#t~nondet63; 1502#L718 assume !(0 != test_~tmp~7); 1311#L718-1 test_~tmp___0~1 := test_#t~nondet64;havoc test_#t~nondet64; 1249#L728 assume !(0 != test_~tmp___0~1); 1250#L728-1 test_~tmp___2~0 := test_#t~nondet65;havoc test_#t~nondet65; 1253#L738 assume 0 != test_~tmp___2~0; 1269#L744-2 assume !(0 != ~pumpRunning~0); 1265#L527 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1215#L585 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret43, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1216#L559-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret62, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1288#L847-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1217#L852-1 isHighWaterLevel_#t~ret62 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret62;havoc isHighWaterLevel_#t~ret62; 1206#L687-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 1207#L687-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1208#L693-1 processEnvironment__wrappee__highWaterSensor_#t~ret43 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret43;havoc processEnvironment__wrappee__highWaterSensor_#t~ret43; 1227#L563-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1220#L534 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1283#L807-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 1284#L876 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1320#L839 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 1321#L882 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1279#L882-1 [2020-11-30 00:58:24,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:24,140 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-11-30 00:58:24,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:24,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854852770] [2020-11-30 00:58:24,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:24,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:24,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:24,267 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:24,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:24,268 INFO L82 PathProgramCache]: Analyzing trace with hash 271071756, now seen corresponding path program 1 times [2020-11-30 00:58:24,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:24,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101311680] [2020-11-30 00:58:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:24,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:24,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:24,298 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:24,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:24,299 INFO L82 PathProgramCache]: Analyzing trace with hash 468824998, now seen corresponding path program 1 times [2020-11-30 00:58:24,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:24,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556902059] [2020-11-30 00:58:24,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:24,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:24,408 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:24,428 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:24,670 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-11-30 00:58:24,796 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-11-30 00:59:55,475 WARN L193 SmtUtils]: Spent 1.51 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:00:55,514 WARN L193 SmtUtils]: Spent 1.00 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:00:55,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:00:55 BoogieIcfgContainer [2020-11-30 01:00:55,774 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:00:55,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:00:55,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:00:55,775 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:00:55,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:20" (3/4) ... [2020-11-30 01:00:55,780 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:00:55,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_187a3374-9313-4c3e-a43e-9b27662fc0b2/bin/uautomizer/witness.graphml [2020-11-30 01:00:55,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:00:55,842 INFO L168 Benchmark]: Toolchain (without parser) took 157025.91 ms. Allocated memory was 102.8 MB in the beginning and 182.5 MB in the end (delta: 79.7 MB). Free memory was 66.2 MB in the beginning and 80.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 63.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:55,843 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 102.8 MB. Free memory is still 83.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:55,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.27 ms. Allocated memory is still 102.8 MB. Free memory was 65.9 MB in the beginning and 68.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:55,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.40 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 65.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:55,844 INFO L168 Benchmark]: Boogie Preprocessor took 110.19 ms. Allocated memory is still 102.8 MB. Free memory was 65.1 MB in the beginning and 62.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:55,845 INFO L168 Benchmark]: RCFGBuilder took 1189.35 ms. Allocated memory is still 102.8 MB. Free memory was 62.3 MB in the beginning and 40.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:55,846 INFO L168 Benchmark]: BuchiAutomizer took 154850.30 ms. Allocated memory was 102.8 MB in the beginning and 182.5 MB in the end (delta: 79.7 MB). Free memory was 40.9 MB in the beginning and 82.5 MB in the end (delta: -41.6 MB). Peak memory consumption was 82.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:55,846 INFO L168 Benchmark]: Witness Printer took 65.65 ms. Allocated memory is still 182.5 MB. Free memory was 82.5 MB in the beginning and 80.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:55,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 102.8 MB. Free memory is still 83.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 642.27 ms. Allocated memory is still 102.8 MB. Free memory was 65.9 MB in the beginning and 68.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 160.40 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 65.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.19 ms. Allocated memory is still 102.8 MB. Free memory was 65.1 MB in the beginning and 62.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1189.35 ms. Allocated memory is still 102.8 MB. Free memory was 62.3 MB in the beginning and 40.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 154850.30 ms. Allocated memory was 102.8 MB in the beginning and 182.5 MB in the end (delta: 79.7 MB). Free memory was 40.9 MB in the beginning and 82.5 MB in the end (delta: -41.6 MB). Peak memory consumption was 82.4 MB. Max. memory is 16.1 GB. * Witness Printer took 65.65 ms. Allocated memory is still 182.5 MB. Free memory was 82.5 MB in the beginning and 80.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 302 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 154.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 153.5s. Construction of modules took 0.5s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 211 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 302 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 541 SDtfs, 1344 SDslu, 742 SDs, 0 SdLazy, 109 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 708]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=23947, NULL=1, methaneLevelCritical=0, retValue_acc=1, NULL=0, tmp=0, NULL=23930, tmp___1=0, NULL=23938, retValue_acc=0, NULL=0, NULL=23941, NULL=23936, cleanupTimeShifts=4, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66602089=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=23925, NULL=23929, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63e3ac53=0, \result=1, NULL=23949, NULL=0, retValue_acc=1, NULL=0, NULL=0, NULL=23943, tmp___0=0, NULL=23945, tmp=1, NULL=23928, NULL=23927, head=0, NULL=0, NULL=0, tmp=0, NULL=23946, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18a049d4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c62b37=0, NULL=0, NULL=0, NULL=23935, NULL=23939, NULL=23932, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77f9e3d0=0, NULL=0, NULL=23950, tmp=0, NULL=23934, NULL=21243, tmp___0=1, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74b2b0dd=0, retValue_acc=0, \result=0, NULL=23931, NULL=0, NULL=0, NULL=0, NULL=23944, NULL=23940, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d2e4b57=0, NULL=0, NULL=23933, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32f59cea=0, NULL=23951, tmp___2=57, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=23942, NULL=23926, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a990928=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d291027=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76234213=0, NULL=23948, NULL=23937} - 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; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L519] int pumpRunning = 0; [L520] int systemActive = 1; [L764] int waterLevel = 1; [L765] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 Loop: [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L527] COND FALSE !(\read(pumpRunning)) [L534] COND TRUE \read(systemActive) [L582] int tmp ; [L585] COND FALSE !(\read(pumpRunning)) [L556] int tmp ; [L559] COND TRUE ! pumpRunning [L679] int retValue_acc ; [L680] int tmp ; [L681] int tmp___0 ; [L844] int retValue_acc ; [L847] COND TRUE waterLevel < 2 [L848] retValue_acc = 1 [L849] return (retValue_acc); [L685] tmp = isHighWaterSensorDry() [L687] COND TRUE \read(tmp) [L688] tmp___0 = 0 [L692] retValue_acc = tmp___0 [L693] return (retValue_acc); [L561] tmp = isHighWaterLevel() [L563] COND FALSE !(\read(tmp)) [L868] int tmp ; [L869] int tmp___0 ; [L870] int tmp___1 ; [L803] int retValue_acc ; [L806] retValue_acc = methaneLevelCritical [L807] return (retValue_acc); [L874] tmp = isMethaneLevelCritical() [L876] COND FALSE !(\read(tmp)) [L835] int retValue_acc ; [L838] retValue_acc = waterLevel [L839] return (retValue_acc); [L880] tmp___0 = getWaterLevel() [L882] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...