./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.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_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/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 23682bb018ca337818baa43f0543337e0e1afa6d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:52:08,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:52:08,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:52:08,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:52:08,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:52:08,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:52:08,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:52:08,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:52:08,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:52:08,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:52:08,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:52:08,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:52:08,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:52:08,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:52:08,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:52:08,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:52:08,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:52:08,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:52:08,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:52:08,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:52:08,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:52:08,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:52:08,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:52:08,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:52:08,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:52:08,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:52:08,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:52:08,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:52:08,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:52:08,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:52:08,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:52:08,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:52:08,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:52:08,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:52:08,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:52:08,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:52:08,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:52:08,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:52:08,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:52:08,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:52:08,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:52:08,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:52:08,854 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:52:08,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:52:08,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:52:08,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:52:08,857 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:52:08,857 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:52:08,857 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:52:08,857 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:52:08,857 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:52:08,857 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:52:08,858 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:52:08,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:52:08,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:52:08,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:52:08,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:52:08,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:52:08,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:52:08,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:52:08,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:52:08,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:52:08,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:52:08,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:52:08,861 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:52:08,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:52:08,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:52:08,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:52:08,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:52:08,862 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:52:08,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:52:08,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:52:08,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:52:08,864 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:52:08,865 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:52:08,865 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_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23682bb018ca337818baa43f0543337e0e1afa6d [2020-11-29 22:52:09,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:52:09,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:52:09,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:52:09,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:52:09,214 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:52:09,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-11-29 22:52:09,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/data/f68ed4773/bae3359b130e482899cb8c3ac8ba58c9/FLAG6c93d7e27 [2020-11-29 22:52:09,934 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:52:09,935 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-11-29 22:52:09,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/data/f68ed4773/bae3359b130e482899cb8c3ac8ba58c9/FLAG6c93d7e27 [2020-11-29 22:52:10,305 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/data/f68ed4773/bae3359b130e482899cb8c3ac8ba58c9 [2020-11-29 22:52:10,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:52:10,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:52:10,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:52:10,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:52:10,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:52:10,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:10,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c72e216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10, skipping insertion in model container [2020-11-29 22:52:10,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:10,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:52:10,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:52:10,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:52:10,696 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:52:10,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:52:10,867 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:52:10,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10 WrapperNode [2020-11-29 22:52:10,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:52:10,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:52:10,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:52:10,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:52:10,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:10,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:10,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:52:10,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:52:10,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:52:10,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:52:10,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:10,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:10,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:10,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:11,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:11,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:11,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... [2020-11-29 22:52:11,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:52:11,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:52:11,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:52:11,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:52:11,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/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 22:52:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:52:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:52:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:52:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:52:12,227 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:52:12,228 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-11-29 22:52:12,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:52:12 BoogieIcfgContainer [2020-11-29 22:52:12,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:52:12,231 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:52:12,231 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:52:12,234 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:52:12,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:52:12,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:52:10" (1/3) ... [2020-11-29 22:52:12,236 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c60ff64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:52:12, skipping insertion in model container [2020-11-29 22:52:12,236 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:52:12,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:52:10" (2/3) ... [2020-11-29 22:52:12,237 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c60ff64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:52:12, skipping insertion in model container [2020-11-29 22:52:12,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:52:12,237 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:52:12" (3/3) ... [2020-11-29 22:52:12,239 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-11-29 22:52:12,287 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:52:12,287 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:52:12,287 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:52:12,287 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:52:12,287 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:52:12,287 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:52:12,288 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:52:12,288 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:52:12,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states. [2020-11-29 22:52:12,351 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2020-11-29 22:52:12,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:52:12,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:52:12,362 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:52:12,363 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:52:12,363 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:52:12,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states. [2020-11-29 22:52:12,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2020-11-29 22:52:12,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:52:12,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:52:12,384 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:52:12,384 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:52:12,397 INFO L794 eck$LassoCheckResult]: Stem: 88#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 71#L961true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 74#L969true main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 115#L536true assume 0 != main_~tmp~4; 90#L509true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 52#L53-1true [2020-11-29 22:52:12,397 INFO L796 eck$LassoCheckResult]: Loop: 52#L53-1true assume !false; 77#L881true assume test_~splverifierCounter~0 < 4; 36#L882true test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 56#L890true assume !(0 != test_~tmp~9); 40#L890-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 83#L900true assume !(0 != test_~tmp___0~2); 84#L900-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 5#L910true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 31#L918-1true assume !(0 != ~pumpRunning~0); 61#L565true assume !(0 != ~systemActive~0); 110#L572true havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 63#L851true __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 62#L53true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 52#L53-1true [2020-11-29 22:52:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:12,403 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 22:52:12,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:12,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458741659] [2020-11-29 22:52:12,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:12,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:12,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:12,909 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:52:12,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:12,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1669770354, now seen corresponding path program 1 times [2020-11-29 22:52:12,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:12,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378884502] [2020-11-29 22:52:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:52:12,991 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 22:52:12,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378884502] [2020-11-29 22:52:12,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:52:12,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:52:12,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055044405] [2020-11-29 22:52:12,998 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:52:12,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:52:13,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:52:13,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:52:13,015 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 3 states. [2020-11-29 22:52:13,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:52:13,103 INFO L93 Difference]: Finished difference Result 250 states and 360 transitions. [2020-11-29 22:52:13,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:52:13,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 360 transitions. [2020-11-29 22:52:13,116 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 162 [2020-11-29 22:52:13,126 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 236 states and 345 transitions. [2020-11-29 22:52:13,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2020-11-29 22:52:13,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2020-11-29 22:52:13,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 345 transitions. [2020-11-29 22:52:13,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:52:13,132 INFO L691 BuchiCegarLoop]: Abstraction has 236 states and 345 transitions. [2020-11-29 22:52:13,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 345 transitions. [2020-11-29 22:52:13,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2020-11-29 22:52:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-11-29 22:52:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 342 transitions. [2020-11-29 22:52:13,178 INFO L714 BuchiCegarLoop]: Abstraction has 234 states and 342 transitions. [2020-11-29 22:52:13,178 INFO L594 BuchiCegarLoop]: Abstraction has 234 states and 342 transitions. [2020-11-29 22:52:13,178 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:52:13,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 342 transitions. [2020-11-29 22:52:13,181 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2020-11-29 22:52:13,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:52:13,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:52:13,182 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:52:13,183 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:52:13,183 INFO L794 eck$LassoCheckResult]: Stem: 492#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 409#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 410#L961 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 481#L969 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 484#L536 assume 0 != main_~tmp~4; 495#L509 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 460#L53-1 [2020-11-29 22:52:13,183 INFO L796 eck$LassoCheckResult]: Loop: 460#L53-1 assume !false; 461#L881 assume test_~splverifierCounter~0 < 4; 439#L882 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 440#L890 assume !(0 != test_~tmp~9); 442#L890-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 443#L900 assume !(0 != test_~tmp___0~2); 490#L900-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 394#L910 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 395#L918-1 assume !(0 != ~pumpRunning~0); 433#L565 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 467#L623 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 468#L597-1 assume !(0 == ~pumpRunning~0); 436#L572 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 471#L851 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 469#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 460#L53-1 [2020-11-29 22:52:13,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:13,184 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 22:52:13,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:13,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150183653] [2020-11-29 22:52:13,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:13,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:13,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:13,351 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:52:13,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:13,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1411824400, now seen corresponding path program 1 times [2020-11-29 22:52:13,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:13,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321904893] [2020-11-29 22:52:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:52:13,368 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 22:52:13,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321904893] [2020-11-29 22:52:13,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:52:13,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:52:13,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626766676] [2020-11-29 22:52:13,369 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:52:13,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:52:13,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:52:13,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:52:13,370 INFO L87 Difference]: Start difference. First operand 234 states and 342 transitions. cyclomatic complexity: 111 Second operand 3 states. [2020-11-29 22:52:13,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:52:13,533 INFO L93 Difference]: Finished difference Result 317 states and 442 transitions. [2020-11-29 22:52:13,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:52:13,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 442 transitions. [2020-11-29 22:52:13,538 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2020-11-29 22:52:13,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 317 states and 442 transitions. [2020-11-29 22:52:13,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 317 [2020-11-29 22:52:13,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 317 [2020-11-29 22:52:13,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 442 transitions. [2020-11-29 22:52:13,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:52:13,556 INFO L691 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2020-11-29 22:52:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 442 transitions. [2020-11-29 22:52:13,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-11-29 22:52:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-11-29 22:52:13,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 442 transitions. [2020-11-29 22:52:13,611 INFO L714 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2020-11-29 22:52:13,611 INFO L594 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2020-11-29 22:52:13,611 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:52:13,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 442 transitions. [2020-11-29 22:52:13,616 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2020-11-29 22:52:13,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:52:13,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:52:13,618 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:52:13,618 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:52:13,619 INFO L794 eck$LassoCheckResult]: Stem: 1076#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 967#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 968#L961 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1058#L969 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 1063#L536 assume 0 != main_~tmp~4; 1078#L509 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1041#L53-1 [2020-11-29 22:52:13,619 INFO L796 eck$LassoCheckResult]: Loop: 1041#L53-1 assume !false; 1064#L881 assume test_~splverifierCounter~0 < 4; 1065#L882 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 1035#L890 assume !(0 != test_~tmp~9); 1008#L890-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 1071#L900 assume !(0 != test_~tmp___0~2); 1072#L900-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 951#L910 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 952#L918-1 assume !(0 != ~pumpRunning~0); 996#L565 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1176#L623 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1175#L597-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1174#L859-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1172#L864-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 1170#L742-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 962#L742-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 963#L748-1 processEnvironment__wrappee__methaneQuery_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret45;havoc processEnvironment__wrappee__methaneQuery_#t~ret45; 1016#L601-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 1001#L572 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1097#L851 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 1040#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 1041#L53-1 [2020-11-29 22:52:13,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:13,621 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 22:52:13,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:13,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562832087] [2020-11-29 22:52:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:13,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:13,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:13,819 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:52:13,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:13,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1301686430, now seen corresponding path program 1 times [2020-11-29 22:52:13,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:13,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692399101] [2020-11-29 22:52:13,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:52:13,857 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 22:52:13,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692399101] [2020-11-29 22:52:13,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:52:13,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:52:13,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642049067] [2020-11-29 22:52:13,858 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:52:13,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:52:13,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:52:13,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:52:13,859 INFO L87 Difference]: Start difference. First operand 317 states and 442 transitions. cyclomatic complexity: 128 Second operand 4 states. [2020-11-29 22:52:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:52:14,015 INFO L93 Difference]: Finished difference Result 891 states and 1218 transitions. [2020-11-29 22:52:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:52:14,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 891 states and 1218 transitions. [2020-11-29 22:52:14,025 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 637 [2020-11-29 22:52:14,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 891 states to 891 states and 1218 transitions. [2020-11-29 22:52:14,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 891 [2020-11-29 22:52:14,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 891 [2020-11-29 22:52:14,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 891 states and 1218 transitions. [2020-11-29 22:52:14,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:52:14,039 INFO L691 BuchiCegarLoop]: Abstraction has 891 states and 1218 transitions. [2020-11-29 22:52:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states and 1218 transitions. [2020-11-29 22:52:14,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 341. [2020-11-29 22:52:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-11-29 22:52:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 466 transitions. [2020-11-29 22:52:14,076 INFO L714 BuchiCegarLoop]: Abstraction has 341 states and 466 transitions. [2020-11-29 22:52:14,076 INFO L594 BuchiCegarLoop]: Abstraction has 341 states and 466 transitions. [2020-11-29 22:52:14,076 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 22:52:14,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 466 transitions. [2020-11-29 22:52:14,079 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2020-11-29 22:52:14,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:52:14,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:52:14,081 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:52:14,082 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:52:14,082 INFO L794 eck$LassoCheckResult]: Stem: 2299#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2185#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 2186#L961 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 2279#L969 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 2285#L536 assume 0 != main_~tmp~4; 2302#L509 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2303#L53-1 [2020-11-29 22:52:14,082 INFO L796 eck$LassoCheckResult]: Loop: 2303#L53-1 assume !false; 2420#L881 assume test_~splverifierCounter~0 < 4; 2419#L882 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 2418#L890 assume !(0 != test_~tmp~9); 2416#L890-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 2415#L900 assume !(0 != test_~tmp___0~2); 2295#L900-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 2169#L910 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2170#L918-1 assume !(0 != ~pumpRunning~0); 2214#L565 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2410#L623 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 2296#L597-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 2297#L859-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 2322#L864-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 2323#L742-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2180#L742-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 2181#L748-1 processEnvironment__wrappee__methaneQuery_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret45;havoc processEnvironment__wrappee__methaneQuery_#t~ret45; 2233#L601-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 2218#L572 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 2424#L851 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 2422#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 2303#L53-1 [2020-11-29 22:52:14,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:14,083 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-11-29 22:52:14,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:14,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502585127] [2020-11-29 22:52:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:14,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:14,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:14,196 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:52:14,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:14,197 INFO L82 PathProgramCache]: Analyzing trace with hash 621628060, now seen corresponding path program 1 times [2020-11-29 22:52:14,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:14,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789019923] [2020-11-29 22:52:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:14,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:14,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:14,216 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:52:14,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:52:14,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1077699254, now seen corresponding path program 1 times [2020-11-29 22:52:14,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:52:14,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808574390] [2020-11-29 22:52:14,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:52:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:14,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:52:14,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:52:14,342 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:52:14,469 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 22:53:23,435 WARN L193 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:54:08,972 WARN L193 SmtUtils]: Spent 45.53 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:54:09,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:54:09 BoogieIcfgContainer [2020-11-29 22:54:09,125 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:54:09,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:54:09,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:54:09,126 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:54:09,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:52:12" (3/4) ... [2020-11-29 22:54:09,129 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:54:09,196 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a9c750b8-6a2b-4b8f-87c1-9281d53bdb24/bin/uautomizer/witness.graphml [2020-11-29 22:54:09,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:54:09,198 INFO L168 Benchmark]: Toolchain (without parser) took 118887.70 ms. Allocated memory was 107.0 MB in the beginning and 167.8 MB in the end (delta: 60.8 MB). Free memory was 84.0 MB in the beginning and 83.3 MB in the end (delta: 756.8 kB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:09,199 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 81.8 MB. Free memory was 45.7 MB in the beginning and 45.6 MB in the end (delta: 65.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:54:09,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.17 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 73.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:09,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.62 ms. Allocated memory is still 107.0 MB. Free memory was 73.2 MB in the beginning and 69.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:09,200 INFO L168 Benchmark]: Boogie Preprocessor took 43.81 ms. Allocated memory is still 107.0 MB. Free memory was 69.1 MB in the beginning and 66.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:09,201 INFO L168 Benchmark]: RCFGBuilder took 1208.85 ms. Allocated memory is still 107.0 MB. Free memory was 66.6 MB in the beginning and 49.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:09,201 INFO L168 Benchmark]: BuchiAutomizer took 116894.40 ms. Allocated memory was 107.0 MB in the beginning and 167.8 MB in the end (delta: 60.8 MB). Free memory was 49.0 MB in the beginning and 86.4 MB in the end (delta: -37.4 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:09,202 INFO L168 Benchmark]: Witness Printer took 70.85 ms. Allocated memory is still 167.8 MB. Free memory was 86.4 MB in the beginning and 83.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:09,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 81.8 MB. Free memory was 45.7 MB in the beginning and 45.6 MB in the end (delta: 65.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 558.17 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 73.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.62 ms. Allocated memory is still 107.0 MB. Free memory was 73.2 MB in the beginning and 69.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.81 ms. Allocated memory is still 107.0 MB. Free memory was 69.1 MB in the beginning and 66.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1208.85 ms. Allocated memory is still 107.0 MB. Free memory was 66.6 MB in the beginning and 49.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 116894.40 ms. Allocated memory was 107.0 MB in the beginning and 167.8 MB in the end (delta: 60.8 MB). Free memory was 49.0 MB in the beginning and 86.4 MB in the end (delta: -37.4 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.1 GB. * Witness Printer took 70.85 ms. Allocated memory is still 167.8 MB. Free memory was 86.4 MB in the beginning and 83.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 341 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 116.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 116.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 552 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 341 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 688 SDtfs, 650 SDslu, 654 SDs, 0 SdLazy, 101 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 880]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=1, NULL=16376, NULL=0, NULL=0, NULL=16379, methaneLevelCritical=0, retValue_acc=1, NULL=0, tmp___1=0, tmp=0, NULL=16390, retValue_acc=0, NULL=0, NULL=16386, NULL=16384, cleanupTimeShifts=4, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1803edf=0, waterLevel=1, NULL=0, NULL=0, NULL=16372, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c945f00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d43c71d=0, NULL=16370, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=0, \result=1, tmp=1, NULL=0, NULL=16378, retValue_acc=1, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=16389, NULL=16377, head=0, NULL=0, tmp=0, NULL=16394, NULL=16388, NULL=0, NULL=0, NULL=0, NULL=16371, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71e05348=0, NULL=0, NULL=0, retValue_acc=0, NULL=16387, NULL=16373, NULL=16385, tmp___0=0, NULL=0, NULL=16383, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54054b41=0, NULL=0, tmp___0=0, NULL=16395, NULL=16396, NULL=16382, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f7dff03=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4745ce8=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f05ff4b=0, NULL=0, NULL=0, systemActive=1, NULL=16375, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6201f5f7=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=16392, \result=0, NULL=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c2364ed=0, NULL=16374, NULL=16391, tmp___2=76, splverifierCounter=0, NULL=0, NULL=16393, NULL=16381, NULL=16380} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L558] int pumpRunning = 0; [L559] int systemActive = 1; [L776] int waterLevel = 1; [L777] int methaneLevelCritical = 0; [L527] int retValue_acc ; [L528] int tmp ; [L965] int retValue_acc ; [L968] retValue_acc = 1 [L969] return (retValue_acc); [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L871] int splverifierCounter ; [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L875] int tmp___2 ; [L878] splverifierCounter = 0 Loop: [L880] COND TRUE 1 [L882] COND TRUE splverifierCounter < 4 [L888] tmp = __VERIFIER_nondet_int() [L890] COND FALSE !(\read(tmp)) [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 [L565] COND FALSE !(\read(pumpRunning)) [L572] COND TRUE \read(systemActive) [L620] int tmp ; [L623] COND FALSE !(\read(pumpRunning)) [L594] int tmp ; [L597] COND TRUE ! pumpRunning [L734] int retValue_acc ; [L735] int tmp ; [L736] int tmp___0 ; [L856] int retValue_acc ; [L859] COND TRUE waterLevel < 2 [L860] retValue_acc = 1 [L861] return (retValue_acc); [L740] tmp = isHighWaterSensorDry() [L742] COND TRUE \read(tmp) [L743] tmp___0 = 0 [L747] retValue_acc = tmp___0 [L748] return (retValue_acc); [L599] tmp = isHighWaterLevel() [L601] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...