./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.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_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/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 078eafdb571868894c038a80ec14b552193cf718 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:09:50,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:09:50,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:09:50,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:09:50,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:09:50,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:09:50,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:09:50,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:09:50,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:09:50,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:09:50,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:09:50,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:09:50,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:09:50,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:09:50,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:09:50,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:09:50,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:09:50,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:09:50,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:09:50,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:09:50,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:09:50,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:09:50,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:09:50,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:09:50,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:09:50,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:09:50,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:09:50,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:09:50,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:09:50,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:09:50,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:09:50,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:09:50,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:09:50,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:09:50,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:09:50,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:09:50,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:09:50,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:09:50,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:09:50,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:09:50,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:09:50,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:09:50,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:09:50,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:09:50,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:09:50,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:09:50,915 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:09:50,915 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:09:50,916 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:09:50,916 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:09:50,916 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:09:50,917 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:09:50,918 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:09:50,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:09:50,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:09:50,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:09:50,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:09:50,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:09:50,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:09:50,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:09:50,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:09:50,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:09:50,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:09:50,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:09:50,923 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:09:50,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:09:50,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:09:50,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:09:50,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:09:50,925 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:09:50,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:09:50,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:09:50,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:09:50,926 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:09:50,928 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:09:50,929 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_0a2d2a15-aced-4cf4-980d-04c83140c99d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 078eafdb571868894c038a80ec14b552193cf718 [2020-11-29 20:09:51,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:09:51,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:09:51,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:09:51,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:09:51,371 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:09:51,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2020-11-29 20:09:51,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/data/601908493/a6b0e3f8b9fd49068b3da6af928dc54f/FLAG14effdfd9 [2020-11-29 20:09:52,090 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:09:52,091 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2020-11-29 20:09:52,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/data/601908493/a6b0e3f8b9fd49068b3da6af928dc54f/FLAG14effdfd9 [2020-11-29 20:09:52,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/data/601908493/a6b0e3f8b9fd49068b3da6af928dc54f [2020-11-29 20:09:52,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:09:52,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:09:52,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:09:52,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:09:52,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:09:52,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:09:52" (1/1) ... [2020-11-29 20:09:52,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7982fd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:52, skipping insertion in model container [2020-11-29 20:09:52,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:09:52" (1/1) ... [2020-11-29 20:09:52,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:09:52,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:09:52,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:09:52,912 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:09:53,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:09:53,046 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:09:53,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53 WrapperNode [2020-11-29 20:09:53,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:09:53,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:09:53,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:09:53,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:09:53,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:09:53,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:09:53,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:09:53,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:09:53,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... [2020-11-29 20:09:53,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:09:53,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:09:53,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:09:53,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:09:53,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:09:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:09:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:09:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:09:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:09:54,584 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:09:54,585 INFO L298 CfgBuilder]: Removed 116 assume(true) statements. [2020-11-29 20:09:54,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:54 BoogieIcfgContainer [2020-11-29 20:09:54,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:09:54,589 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:09:54,589 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:09:54,594 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:09:54,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:09:54,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:09:52" (1/3) ... [2020-11-29 20:09:54,597 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6859612e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:09:54, skipping insertion in model container [2020-11-29 20:09:54,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:09:54,598 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:53" (2/3) ... [2020-11-29 20:09:54,598 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6859612e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:09:54, skipping insertion in model container [2020-11-29 20:09:54,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:09:54,599 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:54" (3/3) ... [2020-11-29 20:09:54,601 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2020-11-29 20:09:54,659 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:09:54,659 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:09:54,659 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:09:54,660 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:09:54,660 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:09:54,660 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:09:54,660 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:09:54,660 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:09:54,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states. [2020-11-29 20:09:54,710 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-29 20:09:54,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:09:54,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:09:54,720 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:54,720 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:54,720 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:09:54,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states. [2020-11-29 20:09:54,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-29 20:09:54,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:09:54,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:09:54,730 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:54,730 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:54,737 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 63#L667true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 67#L675true main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 21#L764true assume 0 != main_~tmp~6; 34#L739true ~switchedOnBeforeTS~0 := 0; 6#L888true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 72#L909-1true [2020-11-29 20:09:54,737 INFO L796 eck$LassoCheckResult]: Loop: 72#L909-1true assume !false; 84#L423true assume test_~splverifierCounter~0 < 4; 17#L424true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 51#L432true assume !(0 != test_~tmp~3); 55#L432-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 31#L442true assume !(0 != test_~tmp___0~0); 3#L442-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 66#L452true assume 0 != test_~tmp___2~0; 44#L458-2true havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 49#L582true __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 70#L898true assume !(0 != ~pumpRunning~0); 24#L497true assume !(0 != ~systemActive~0); 7#L504true havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 41#L863true __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 68#L909true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 72#L909-1true [2020-11-29 20:09:54,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:54,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 20:09:54,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:54,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494733039] [2020-11-29 20:09:54,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:55,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:55,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:55,362 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:09:55,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:55,364 INFO L82 PathProgramCache]: Analyzing trace with hash 94350830, now seen corresponding path program 1 times [2020-11-29 20:09:55,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:55,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793410177] [2020-11-29 20:09:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:55,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:55,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:55,387 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:09:55,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:55,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2028376040, now seen corresponding path program 1 times [2020-11-29 20:09:55,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:55,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588671784] [2020-11-29 20:09:55,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:55,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:09:55,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588671784] [2020-11-29 20:09:55,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:09:55,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:09:55,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400395895] [2020-11-29 20:09:55,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:09:55,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:09:55,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:09:55,893 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 6 states. [2020-11-29 20:09:56,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:09:56,177 INFO L93 Difference]: Finished difference Result 84 states and 115 transitions. [2020-11-29 20:09:56,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:09:56,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 115 transitions. [2020-11-29 20:09:56,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 20:09:56,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2020-11-29 20:09:56,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2020-11-29 20:09:56,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2020-11-29 20:09:56,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2020-11-29 20:09:56,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:09:56,206 INFO L691 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-29 20:09:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2020-11-29 20:09:56,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-29 20:09:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-29 20:09:56,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-11-29 20:09:56,262 INFO L714 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-29 20:09:56,262 INFO L594 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-29 20:09:56,262 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:09:56,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2020-11-29 20:09:56,272 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 20:09:56,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:09:56,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:09:56,277 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:56,277 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:56,277 INFO L794 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 204#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 205#L667 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 262#L675 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 213#L764 assume 0 != main_~tmp~6; 214#L739 ~switchedOnBeforeTS~0 := 0; 195#L888 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 196#L909-1 [2020-11-29 20:09:56,279 INFO L796 eck$LassoCheckResult]: Loop: 196#L909-1 assume !false; 265#L423 assume test_~splverifierCounter~0 < 4; 209#L424 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 210#L432 assume !(0 != test_~tmp~3); 251#L432-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 223#L442 assume !(0 != test_~tmp___0~0); 189#L442-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 190#L452 assume 0 != test_~tmp___2~0; 238#L458-2 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 239#L582 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 247#L898 assume !(0 != ~pumpRunning~0); 215#L497 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 216#L529 assume !(0 == ~pumpRunning~0); 193#L504 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 194#L863 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 236#L909 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 196#L909-1 [2020-11-29 20:09:56,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:56,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 20:09:56,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:56,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014729783] [2020-11-29 20:09:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:56,398 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:56,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:56,533 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:09:56,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:56,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1401702331, now seen corresponding path program 1 times [2020-11-29 20:09:56,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:56,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14117486] [2020-11-29 20:09:56,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:09:56,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14117486] [2020-11-29 20:09:56,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:09:56,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:09:56,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596673671] [2020-11-29 20:09:56,569 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:09:56,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:09:56,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:09:56,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:09:56,571 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2020-11-29 20:09:56,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:09:56,743 INFO L93 Difference]: Finished difference Result 126 states and 170 transitions. [2020-11-29 20:09:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:09:56,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 170 transitions. [2020-11-29 20:09:56,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2020-11-29 20:09:56,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 170 transitions. [2020-11-29 20:09:56,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2020-11-29 20:09:56,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2020-11-29 20:09:56,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 170 transitions. [2020-11-29 20:09:56,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:09:56,761 INFO L691 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2020-11-29 20:09:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 170 transitions. [2020-11-29 20:09:56,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-11-29 20:09:56,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-29 20:09:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 170 transitions. [2020-11-29 20:09:56,774 INFO L714 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2020-11-29 20:09:56,775 INFO L594 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2020-11-29 20:09:56,775 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:09:56,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 170 transitions. [2020-11-29 20:09:56,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2020-11-29 20:09:56,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:09:56,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:09:56,782 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:56,782 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] [2020-11-29 20:09:56,782 INFO L794 eck$LassoCheckResult]: Stem: 449#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 412#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 413#L667 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 476#L675 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 423#L764 assume 0 != main_~tmp~6; 424#L739 ~switchedOnBeforeTS~0 := 0; 402#L888 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 403#L909-1 [2020-11-29 20:09:56,783 INFO L796 eck$LassoCheckResult]: Loop: 403#L909-1 assume !false; 479#L423 assume test_~splverifierCounter~0 < 4; 419#L424 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 420#L432 assume !(0 != test_~tmp~3); 463#L432-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 433#L442 assume !(0 != test_~tmp___0~0); 398#L442-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 399#L452 assume 0 != test_~tmp___2~0; 450#L458-2 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 451#L582 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 459#L898 assume !(0 != ~pumpRunning~0); 425#L497 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 426#L529 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret64, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 453#L871 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 454#L876 isHighWaterLevel_#t~ret64 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret64;havoc isHighWaterLevel_#t~ret64; 477#L631 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 478#L631-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 452#L637 processEnvironment_#t~ret46 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret46;havoc processEnvironment_#t~ret46; 410#L533 assume !(0 != processEnvironment_~tmp~4); 404#L504 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 405#L863 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 448#L909 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 403#L909-1 [2020-11-29 20:09:56,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:56,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 20:09:56,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:56,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612040830] [2020-11-29 20:09:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:56,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:56,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:57,001 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:09:57,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:57,002 INFO L82 PathProgramCache]: Analyzing trace with hash 393719185, now seen corresponding path program 1 times [2020-11-29 20:09:57,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:57,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607779866] [2020-11-29 20:09:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:57,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:09:57,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607779866] [2020-11-29 20:09:57,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:09:57,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:09:57,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948244617] [2020-11-29 20:09:57,062 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:09:57,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:09:57,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:09:57,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:09:57,064 INFO L87 Difference]: Start difference. First operand 126 states and 170 transitions. cyclomatic complexity: 46 Second operand 5 states. [2020-11-29 20:09:57,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:09:57,415 INFO L93 Difference]: Finished difference Result 466 states and 633 transitions. [2020-11-29 20:09:57,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 20:09:57,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 466 states and 633 transitions. [2020-11-29 20:09:57,423 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 325 [2020-11-29 20:09:57,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 466 states to 466 states and 633 transitions. [2020-11-29 20:09:57,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 466 [2020-11-29 20:09:57,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 466 [2020-11-29 20:09:57,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 466 states and 633 transitions. [2020-11-29 20:09:57,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:09:57,454 INFO L691 BuchiCegarLoop]: Abstraction has 466 states and 633 transitions. [2020-11-29 20:09:57,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states and 633 transitions. [2020-11-29 20:09:57,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 242. [2020-11-29 20:09:57,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-11-29 20:09:57,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2020-11-29 20:09:57,508 INFO L714 BuchiCegarLoop]: Abstraction has 242 states and 321 transitions. [2020-11-29 20:09:57,509 INFO L594 BuchiCegarLoop]: Abstraction has 242 states and 321 transitions. [2020-11-29 20:09:57,509 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 20:09:57,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 321 transitions. [2020-11-29 20:09:57,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2020-11-29 20:09:57,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:09:57,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:09:57,516 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:57,518 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:57,518 INFO L794 eck$LassoCheckResult]: Stem: 1064#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 1024#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1025#L667 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 1097#L675 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 1038#L764 assume 0 != main_~tmp~6; 1039#L739 ~switchedOnBeforeTS~0 := 0; 1013#L888 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1014#L909-1 [2020-11-29 20:09:57,519 INFO L796 eck$LassoCheckResult]: Loop: 1014#L909-1 assume !false; 1188#L423 assume test_~splverifierCounter~0 < 4; 1189#L424 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 1208#L432 assume !(0 != test_~tmp~3); 1204#L432-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 1203#L442 assume !(0 != test_~tmp___0~0); 1201#L442-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 1177#L452 assume 0 != test_~tmp___2~0; 1171#L458-2 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1169#L582 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 1168#L898 assume !(0 != ~pumpRunning~0); 1167#L497 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1158#L529 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret64, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1151#L871 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1069#L876 isHighWaterLevel_#t~ret64 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret64;havoc isHighWaterLevel_#t~ret64; 1156#L631 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1154#L631-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1152#L637 processEnvironment_#t~ret46 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret46;havoc processEnvironment_#t~ret46; 1148#L533 assume !(0 != processEnvironment_~tmp~4); 1149#L504 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1195#L863 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 1194#L909 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1193#L582-1 __utac_acc__Specification5_spec__3_#t~ret79 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1192#L913 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1014#L909-1 [2020-11-29 20:09:57,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:57,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 20:09:57,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:57,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761366192] [2020-11-29 20:09:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:57,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:57,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:57,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:09:57,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:57,634 INFO L82 PathProgramCache]: Analyzing trace with hash 406998828, now seen corresponding path program 1 times [2020-11-29 20:09:57,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:57,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949417911] [2020-11-29 20:09:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:57,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:57,658 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:57,666 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:09:57,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:57,668 INFO L82 PathProgramCache]: Analyzing trace with hash 266405490, now seen corresponding path program 1 times [2020-11-29 20:09:57,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:57,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610339173] [2020-11-29 20:09:57,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:57,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:09:57,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:09:57,813 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:09:58,115 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-11-29 20:09:58,259 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-11-29 20:11:36,922 WARN L193 SmtUtils]: Spent 1.64 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 20:12:46,630 WARN L193 SmtUtils]: Spent 1.16 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 20:12:47,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:12:47 BoogieIcfgContainer [2020-11-29 20:12:47,002 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:12:47,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:12:47,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:12:47,003 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:12:47,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:54" (3/4) ... [2020-11-29 20:12:47,007 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:12:47,072 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0a2d2a15-aced-4cf4-980d-04c83140c99d/bin/uautomizer/witness.graphml [2020-11-29 20:12:47,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:12:47,078 INFO L168 Benchmark]: Toolchain (without parser) took 174677.70 ms. Allocated memory was 79.7 MB in the beginning and 159.4 MB in the end (delta: 79.7 MB). Free memory was 47.6 MB in the beginning and 106.5 MB in the end (delta: -58.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:47,078 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 39.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:12:47,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.26 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 47.3 MB in the beginning and 64.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:47,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.11 ms. Allocated memory is still 96.5 MB. Free memory was 64.2 MB in the beginning and 61.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:47,080 INFO L168 Benchmark]: Boogie Preprocessor took 97.39 ms. Allocated memory is still 96.5 MB. Free memory was 61.2 MB in the beginning and 59.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:47,081 INFO L168 Benchmark]: RCFGBuilder took 1324.07 ms. Allocated memory is still 96.5 MB. Free memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: -12.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:47,081 INFO L168 Benchmark]: BuchiAutomizer took 172413.29 ms. Allocated memory was 96.5 MB in the beginning and 159.4 MB in the end (delta: 62.9 MB). Free memory was 71.3 MB in the beginning and 108.6 MB in the end (delta: -37.4 MB). Peak memory consumption was 99.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:47,082 INFO L168 Benchmark]: Witness Printer took 69.30 ms. Allocated memory is still 159.4 MB. Free memory was 108.6 MB in the beginning and 106.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:12:47,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 39.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 643.26 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 47.3 MB in the beginning and 64.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.11 ms. Allocated memory is still 96.5 MB. Free memory was 64.2 MB in the beginning and 61.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.39 ms. Allocated memory is still 96.5 MB. Free memory was 61.2 MB in the beginning and 59.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1324.07 ms. Allocated memory is still 96.5 MB. Free memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: -12.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 172413.29 ms. Allocated memory was 96.5 MB in the beginning and 159.4 MB in the end (delta: 62.9 MB). Free memory was 71.3 MB in the beginning and 108.6 MB in the end (delta: -37.4 MB). Peak memory consumption was 99.5 MB. Max. memory is 16.1 GB. * Witness Printer took 69.30 ms. Allocated memory is still 159.4 MB. Free memory was 108.6 MB in the beginning and 106.5 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 242 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 172.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 171.1s. Construction of modules took 0.4s. 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 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 224 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 242 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 378 SDtfs, 874 SDslu, 515 SDs, 0 SdLazy, 130 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 422]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23406} State at position 1 is {NULL=0, NULL=23427, NULL=0, retValue_acc=1, NULL=23406, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2da5c79f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c4b80d=60, methaneLevelCritical=0, retValue_acc=0, tmp=0, NULL=0, NULL=23421, tmp___1=0, NULL=23409, NULL=0, NULL=23419, NULL=23428, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@272f3567=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25485c73=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73bbb3d3=0, waterLevel=1, NULL=0, NULL=0, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=23414, NULL=23412, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a43ad02=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d8fd557=0, NULL=0, tmp=1, \result=1, NULL=23430, NULL=0, NULL=0, NULL=0, tmp=1, NULL=23410, NULL=23408, NULL=23415, NULL=23416, head=0, tmp=0, NULL=0, NULL=0, NULL=23426, NULL=0, NULL=0, NULL=0, NULL=23422, NULL=23420, retValue_acc=0, NULL=23435, NULL=23423, tmp=1, tmp___0=0, NULL=0, NULL=23413, NULL=23418, switchedOnBeforeTS=0, NULL=23407, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60d3c2e9=0, \result=0, NULL=23425, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2052e5eb=0, \result=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36b1ef69=0, NULL=23433, tmp___0=0, NULL=23417, \result=0, NULL=0, NULL=23424, retValue_acc=1, NULL=23434, tmp___2=60, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=23432, NULL=23411, NULL=23429, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L485] int pumpRunning = 0; [L486] int systemActive = 1; [L680] int cleanupTimeShifts = 4; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L882] int switchedOnBeforeTS ; [L755] int retValue_acc ; [L756] int tmp ; [L671] int retValue_acc ; [L674] retValue_acc = 1 [L675] return (retValue_acc); [L762] tmp = valid_product() [L764] COND TRUE \read(tmp) [L887] switchedOnBeforeTS = 0 [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 Loop: [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L578] int retValue_acc ; [L581] retValue_acc = pumpRunning [L582] return (retValue_acc); [L896] switchedOnBeforeTS = isPumpRunning() [L497] COND FALSE !(\read(pumpRunning)) [L504] COND TRUE \read(systemActive) [L526] int tmp ; [L529] COND TRUE ! pumpRunning [L623] int retValue_acc ; [L624] int tmp ; [L625] int tmp___0 ; [L868] int retValue_acc ; [L871] COND TRUE waterLevel < 2 [L872] retValue_acc = 1 [L873] return (retValue_acc); [L629] tmp = isHighWaterSensorDry() [L631] COND TRUE \read(tmp) [L632] tmp___0 = 0 [L636] retValue_acc = tmp___0 [L637] return (retValue_acc); [L531] tmp = isHighWaterLevel() [L533] COND FALSE !(\read(tmp)) [L902] int tmp ; [L903] int tmp___0 ; [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L907] tmp = getWaterLevel() [L909] COND TRUE tmp != 2 [L578] int retValue_acc ; [L581] retValue_acc = pumpRunning [L582] return (retValue_acc); [L911] tmp___0 = isPumpRunning() [L913] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...