./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product59.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_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/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 98aa11458fb4d2fb3b93f200d7f1e58878ef4fd5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:25:35,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:25:35,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:25:35,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:25:35,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:25:35,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:25:35,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:25:35,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:25:35,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:25:35,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:25:35,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:25:35,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:25:35,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:25:35,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:25:35,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:25:35,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:25:35,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:25:35,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:25:35,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:25:35,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:25:35,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:25:35,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:25:35,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:25:35,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:25:35,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:25:35,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:25:35,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:25:35,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:25:35,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:25:35,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:25:35,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:25:35,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:25:35,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:25:35,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:25:35,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:25:35,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:25:35,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:25:35,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:25:35,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:25:35,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:25:35,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:25:35,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:25:35,869 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:25:35,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:25:35,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:25:35,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:25:35,872 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:25:35,873 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:25:35,873 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:25:35,873 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:25:35,873 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:25:35,874 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:25:35,875 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:25:35,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:25:35,876 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:25:35,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:25:35,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:25:35,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:25:35,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:25:35,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:25:35,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:25:35,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:25:35,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:25:35,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:25:35,878 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:25:35,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:25:35,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:25:35,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:25:35,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:25:35,880 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:25:35,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:25:35,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:25:35,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:25:35,883 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:25:35,884 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:25:35,884 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_a69fe9ff-9761-49da-a46c-7bcf1742678d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98aa11458fb4d2fb3b93f200d7f1e58878ef4fd5 [2020-11-29 22:25:36,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:25:36,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:25:36,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:25:36,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:25:36,278 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:25:36,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2020-11-29 22:25:36,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/data/7122ae5ed/729b22b8d65b41599ac1848fa4955ac5/FLAG2a08a9746 [2020-11-29 22:25:37,162 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:25:37,167 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2020-11-29 22:25:37,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/data/7122ae5ed/729b22b8d65b41599ac1848fa4955ac5/FLAG2a08a9746 [2020-11-29 22:25:37,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/data/7122ae5ed/729b22b8d65b41599ac1848fa4955ac5 [2020-11-29 22:25:37,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:25:37,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:25:37,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:25:37,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:25:37,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:25:37,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:25:37" (1/1) ... [2020-11-29 22:25:37,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6f5dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:37, skipping insertion in model container [2020-11-29 22:25:37,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:25:37" (1/1) ... [2020-11-29 22:25:37,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:25:37,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:25:37,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:25:37,877 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:25:37,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:25:38,048 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:25:38,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38 WrapperNode [2020-11-29 22:25:38,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:25:38,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:25:38,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:25:38,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:25:38,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:25:38,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:25:38,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:25:38,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:25:38,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... [2020-11-29 22:25:38,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:25:38,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:25:38,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:25:38,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:25:38,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/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 22:25:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:25:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:25:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:25:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:25:39,798 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:25:39,798 INFO L298 CfgBuilder]: Removed 202 assume(true) statements. [2020-11-29 22:25:39,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:25:39 BoogieIcfgContainer [2020-11-29 22:25:39,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:25:39,802 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:25:39,802 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:25:39,806 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:25:39,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:25:39,808 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:25:37" (1/3) ... [2020-11-29 22:25:39,809 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@163d3516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:25:39, skipping insertion in model container [2020-11-29 22:25:39,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:25:39,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:38" (2/3) ... [2020-11-29 22:25:39,810 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@163d3516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:25:39, skipping insertion in model container [2020-11-29 22:25:39,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:25:39,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:25:39" (3/3) ... [2020-11-29 22:25:39,813 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-11-29 22:25:39,864 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:25:39,865 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:25:39,865 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:25:39,865 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:25:39,865 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:25:39,866 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:25:39,866 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:25:39,866 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:25:39,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2020-11-29 22:25:39,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-29 22:25:39,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:39,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:39,927 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:25:39,927 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:25:39,927 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:25:39,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2020-11-29 22:25:39,938 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-29 22:25:39,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:39,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:39,940 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:25:39,940 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:25:39,946 INFO L794 eck$LassoCheckResult]: Stem: 87#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~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 6#L-1true havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~7;havoc main_~retValue_acc~6;havoc main_~tmp~7; 31#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 37#L75true main_#t~ret36 := valid_product_#res;main_~tmp~7 := main_#t~ret36;havoc main_#t~ret36; 84#L501true assume 0 != main_~tmp~7; 130#L478true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 43#L91-1true [2020-11-29 22:25:39,947 INFO L796 eck$LassoCheckResult]: Loop: 43#L91-1true assume !false; 8#L125true assume test_~splverifierCounter~0 < 4; 103#L126true test_~tmp~1 := test_#t~nondet10;havoc test_#t~nondet10; 123#L134true assume !(0 != test_~tmp~1); 120#L134-1true test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 14#L144true assume !(0 != test_~tmp___0~1); 11#L144-1true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 74#L154true assume 0 != test_~tmp___2~0; 54#L160-1true assume !(0 != ~pumpRunning~0); 41#L196true assume !(0 != ~systemActive~0); 132#L203true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __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; 13#L590true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 48#L91true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 43#L91-1true [2020-11-29 22:25:39,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:39,955 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 22:25:39,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:39,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334137609] [2020-11-29 22:25:39,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:40,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:40,450 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:40,503 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:40,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:40,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1670509171, now seen corresponding path program 1 times [2020-11-29 22:25:40,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:40,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779451138] [2020-11-29 22:25:40,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:40,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:40,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:40,545 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:40,563 INFO L82 PathProgramCache]: Analyzing trace with hash 43769767, now seen corresponding path program 1 times [2020-11-29 22:25:40,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:40,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108294660] [2020-11-29 22:25:40,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:40,733 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 22:25:40,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108294660] [2020-11-29 22:25:40,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:25:40,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:25:40,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449637634] [2020-11-29 22:25:40,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:25:40,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:25:40,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:25:40,899 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 6 states. [2020-11-29 22:25:41,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:25:41,282 INFO L93 Difference]: Finished difference Result 312 states and 444 transitions. [2020-11-29 22:25:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:25:41,287 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 444 transitions. [2020-11-29 22:25:41,309 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 201 [2020-11-29 22:25:41,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 291 states and 423 transitions. [2020-11-29 22:25:41,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 291 [2020-11-29 22:25:41,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291 [2020-11-29 22:25:41,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 291 states and 423 transitions. [2020-11-29 22:25:41,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:25:41,343 INFO L691 BuchiCegarLoop]: Abstraction has 291 states and 423 transitions. [2020-11-29 22:25:41,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states and 423 transitions. [2020-11-29 22:25:41,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 168. [2020-11-29 22:25:41,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-11-29 22:25:41,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 243 transitions. [2020-11-29 22:25:41,423 INFO L714 BuchiCegarLoop]: Abstraction has 168 states and 243 transitions. [2020-11-29 22:25:41,423 INFO L594 BuchiCegarLoop]: Abstraction has 168 states and 243 transitions. [2020-11-29 22:25:41,424 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:25:41,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 243 transitions. [2020-11-29 22:25:41,428 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 116 [2020-11-29 22:25:41,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:41,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:41,430 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:25:41,430 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:25:41,431 INFO L794 eck$LassoCheckResult]: Stem: 566#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~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 473#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~7;havoc main_~retValue_acc~6;havoc main_~tmp~7; 474#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 526#L75 main_#t~ret36 := valid_product_#res;main_~tmp~7 := main_#t~ret36;havoc main_#t~ret36; 537#L501 assume 0 != main_~tmp~7; 564#L478 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 481#L91-1 [2020-11-29 22:25:41,432 INFO L796 eck$LassoCheckResult]: Loop: 481#L91-1 assume !false; 477#L125 assume test_~splverifierCounter~0 < 4; 478#L126 test_~tmp~1 := test_#t~nondet10;havoc test_#t~nondet10; 581#L134 assume !(0 != test_~tmp~1); 472#L134-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 490#L144 assume !(0 != test_~tmp___0~1); 483#L144-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 484#L154 assume 0 != test_~tmp___2~0; 548#L160-1 assume !(0 != ~pumpRunning~0); 517#L196 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 511#L254 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 513#L228-1 assume !(0 == ~pumpRunning~0); 502#L203 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __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; 488#L590 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 489#L91 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 481#L91-1 [2020-11-29 22:25:41,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:41,434 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 22:25:41,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:41,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812328799] [2020-11-29 22:25:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:41,543 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:41,655 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:41,687 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:41,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:41,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1972735894, now seen corresponding path program 1 times [2020-11-29 22:25:41,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:41,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307972149] [2020-11-29 22:25:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:41,723 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 22:25:41,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307972149] [2020-11-29 22:25:41,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:25:41,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:25:41,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59966025] [2020-11-29 22:25:41,724 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:25:41,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:25:41,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:25:41,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:25:41,726 INFO L87 Difference]: Start difference. First operand 168 states and 243 transitions. cyclomatic complexity: 78 Second operand 3 states. [2020-11-29 22:25:41,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:25:41,869 INFO L93 Difference]: Finished difference Result 207 states and 283 transitions. [2020-11-29 22:25:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:25:41,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 283 transitions. [2020-11-29 22:25:41,873 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2020-11-29 22:25:41,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 283 transitions. [2020-11-29 22:25:41,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2020-11-29 22:25:41,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2020-11-29 22:25:41,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 283 transitions. [2020-11-29 22:25:41,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:25:41,878 INFO L691 BuchiCegarLoop]: Abstraction has 207 states and 283 transitions. [2020-11-29 22:25:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 283 transitions. [2020-11-29 22:25:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2020-11-29 22:25:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-11-29 22:25:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 283 transitions. [2020-11-29 22:25:41,901 INFO L714 BuchiCegarLoop]: Abstraction has 207 states and 283 transitions. [2020-11-29 22:25:41,902 INFO L594 BuchiCegarLoop]: Abstraction has 207 states and 283 transitions. [2020-11-29 22:25:41,902 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:25:41,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 283 transitions. [2020-11-29 22:25:41,909 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2020-11-29 22:25:41,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:41,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:41,910 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:25:41,911 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 22:25:41,911 INFO L794 eck$LassoCheckResult]: Stem: 956#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~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 854#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~7;havoc main_~retValue_acc~6;havoc main_~tmp~7; 855#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 904#L75 main_#t~ret36 := valid_product_#res;main_~tmp~7 := main_#t~ret36;havoc main_#t~ret36; 916#L501 assume 0 != main_~tmp~7; 954#L478 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 862#L91-1 [2020-11-29 22:25:41,911 INFO L796 eck$LassoCheckResult]: Loop: 862#L91-1 assume !false; 922#L125 assume test_~splverifierCounter~0 < 4; 1040#L126 test_~tmp~1 := test_#t~nondet10;havoc test_#t~nondet10; 1039#L134 assume !(0 != test_~tmp~1); 1037#L134-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 1036#L144 assume !(0 != test_~tmp___0~1); 1034#L144-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 1032#L154 assume 0 != test_~tmp___2~0; 1031#L160-1 assume !(0 != ~pumpRunning~0); 920#L196 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 890#L254 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 891#L228-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 914#L598-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 915#L603-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 946#L374-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 957#L374-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 941#L380-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 881#L232-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 882#L203 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __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; 869#L590 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 870#L91 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 862#L91-1 [2020-11-29 22:25:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:41,913 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 22:25:41,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:41,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356321619] [2020-11-29 22:25:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:41,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:42,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:42,063 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:42,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:42,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1765215486, now seen corresponding path program 1 times [2020-11-29 22:25:42,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:42,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973829623] [2020-11-29 22:25:42,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:42,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:42,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:42,084 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:42,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:42,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1309144292, now seen corresponding path program 1 times [2020-11-29 22:25:42,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:42,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82160837] [2020-11-29 22:25:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:42,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:42,202 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:42,224 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:42,413 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 22:27:10,313 WARN L193 SmtUtils]: Spent 1.46 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:28:08,669 WARN L193 SmtUtils]: Spent 58.35 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:28:08,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:28:08 BoogieIcfgContainer [2020-11-29 22:28:08,949 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:28:08,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:28:08,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:28:08,950 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:28:08,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:25:39" (3/4) ... [2020-11-29 22:28:08,954 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:28:09,013 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a69fe9ff-9761-49da-a46c-7bcf1742678d/bin/uautomizer/witness.graphml [2020-11-29 22:28:09,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:28:09,018 INFO L168 Benchmark]: Toolchain (without parser) took 151624.87 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 79.9 MB in the beginning and 108.6 MB in the end (delta: -28.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:28:09,020 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 77.6 MB. Free memory was 37.9 MB in the beginning and 37.9 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:28:09,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.68 ms. Allocated memory is still 111.1 MB. Free memory was 79.6 MB in the beginning and 76.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:28:09,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.17 ms. Allocated memory is still 111.1 MB. Free memory was 76.5 MB in the beginning and 72.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:28:09,024 INFO L168 Benchmark]: Boogie Preprocessor took 91.40 ms. Allocated memory is still 111.1 MB. Free memory was 72.5 MB in the beginning and 69.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:28:09,024 INFO L168 Benchmark]: RCFGBuilder took 1506.32 ms. Allocated memory is still 111.1 MB. Free memory was 69.5 MB in the beginning and 59.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:28:09,025 INFO L168 Benchmark]: BuchiAutomizer took 149147.50 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 59.0 MB in the beginning and 33.4 MB in the end (delta: 25.6 MB). Peak memory consumption was 63.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:28:09,025 INFO L168 Benchmark]: Witness Printer took 66.96 ms. Allocated memory is still 140.5 MB. Free memory was 33.4 MB in the beginning and 108.6 MB in the end (delta: -75.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:28:09,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 77.6 MB. Free memory was 37.9 MB in the beginning and 37.9 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 655.68 ms. Allocated memory is still 111.1 MB. Free memory was 79.6 MB in the beginning and 76.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 149.17 ms. Allocated memory is still 111.1 MB. Free memory was 76.5 MB in the beginning and 72.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.40 ms. Allocated memory is still 111.1 MB. Free memory was 72.5 MB in the beginning and 69.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1506.32 ms. Allocated memory is still 111.1 MB. Free memory was 69.5 MB in the beginning and 59.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 149147.50 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 59.0 MB in the beginning and 33.4 MB in the end (delta: 25.6 MB). Peak memory consumption was 63.7 MB. Max. memory is 16.1 GB. * Witness Printer took 66.96 ms. Allocated memory is still 140.5 MB. Free memory was 33.4 MB in the beginning and 108.6 MB in the end (delta: -75.2 MB). Peak memory consumption was 2.4 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 207 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 149.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 148.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 123 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 207 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 358 SDtfs, 863 SDslu, 860 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 124]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6924} State at position 1 is {NULL=0, NULL=0, NULL=6924, NULL=6927, NULL=0, NULL=6941, methaneLevelCritical=0, retValue_acc=0, NULL=0, NULL=6936, NULL=6938, NULL=0, tmp___1=0, NULL=6935, NULL=6933, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=6939, NULL=0, NULL=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@135eb4b2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c9bde0c=0, NULL=6930, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=6949, NULL=0, tmp=1, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=0, NULL=6948, retValue_acc=1, NULL=0, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=6940, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@363fc85a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a1dddf0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10de3f67=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19a0cab6=0, tmp=0, head=0, NULL=6934, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=6946, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ebeeef3=0, tmp___0=0, NULL=0, NULL=0, NULL=6950, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25426edc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@db1eb15=0, tmp___0=0, NULL=6932, NULL=6952, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=6929, \result=1, \result=0, NULL=6947, \result=0, NULL=6943, NULL=0, NULL=6925, NULL=6937, NULL=6951, NULL=6944, retValue_acc=1, tmp___2=71, splverifierCounter=0, NULL=0, NULL=6931, NULL=6928, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5888e6aa=0, NULL=6945, NULL=6942, NULL=6926} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L189] int pumpRunning = 0; [L190] int systemActive = 1; [L419] int cleanupTimeShifts = 4; [L515] int waterLevel = 1; [L516] int methaneLevelCritical = 0; [L796] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int retValue_acc ; [L493] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L499] tmp = valid_product() [L501] COND TRUE \read(tmp) [L115] int splverifierCounter ; [L116] int tmp ; [L117] int tmp___0 ; [L118] int tmp___1 ; [L119] int tmp___2 ; [L122] splverifierCounter = 0 Loop: [L124] COND TRUE 1 [L126] COND TRUE splverifierCounter < 4 [L132] tmp = __VERIFIER_nondet_int() [L134] COND FALSE !(\read(tmp)) [L142] tmp___0 = __VERIFIER_nondet_int() [L144] COND FALSE !(\read(tmp___0)) [L152] tmp___2 = __VERIFIER_nondet_int() [L154] COND TRUE \read(tmp___2) [L196] COND FALSE !(\read(pumpRunning)) [L203] COND TRUE \read(systemActive) [L251] int tmp ; [L254] COND FALSE !(\read(pumpRunning)) [L225] int tmp ; [L228] COND TRUE ! pumpRunning [L366] int retValue_acc ; [L367] int tmp ; [L368] int tmp___0 ; [L595] int retValue_acc ; [L598] COND TRUE waterLevel < 2 [L599] retValue_acc = 1 [L600] return (retValue_acc); [L372] tmp = isHighWaterSensorDry() [L374] COND TRUE \read(tmp) [L375] tmp___0 = 0 [L379] retValue_acc = tmp___0 [L380] return (retValue_acc); [L230] tmp = isHighWaterLevel() [L232] COND FALSE !(\read(tmp)) [L84] int tmp ; [L85] int tmp___0 ; [L586] int retValue_acc ; [L589] retValue_acc = waterLevel [L590] return (retValue_acc); [L89] tmp = getWaterLevel() [L91] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...