./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.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_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/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 b6d6d35826c479e1a93aed1cd13f45357e90f885 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:23:48,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:23:48,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:23:48,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:23:48,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:23:48,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:23:48,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:23:48,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:23:48,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:23:48,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:23:48,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:23:48,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:23:48,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:23:48,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:23:48,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:23:48,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:23:48,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:23:48,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:23:48,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:23:48,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:23:48,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:23:48,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:23:48,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:23:48,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:23:48,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:23:48,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:23:48,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:23:48,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:23:48,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:23:48,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:23:48,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:23:48,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:23:48,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:23:48,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:23:48,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:23:48,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:23:48,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:23:48,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:23:48,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:23:48,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:23:48,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:23:48,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:23:48,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:23:48,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:23:48,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:23:48,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:23:48,652 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:23:48,653 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:23:48,653 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:23:48,654 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:23:48,654 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:23:48,655 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:23:48,656 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:23:48,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:23:48,657 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:23:48,657 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:23:48,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:23:48,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:23:48,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:23:48,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:23:48,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:23:48,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:23:48,660 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:23:48,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:23:48,661 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:23:48,661 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:23:48,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:23:48,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:23:48,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:23:48,663 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:23:48,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:23:48,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:23:48,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:23:48,665 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:23:48,667 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:23:48,667 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_7740bcc2-b08b-4687-96a7-8023bf75ee28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6d6d35826c479e1a93aed1cd13f45357e90f885 [2020-11-30 01:23:49,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:23:49,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:23:49,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:23:49,158 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:23:49,159 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:23:49,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2020-11-30 01:23:49,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/data/0445bc9cd/89259b9e404c4319a095dcac0b44b86b/FLAGca9cef873 [2020-11-30 01:23:49,906 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:23:49,907 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2020-11-30 01:23:49,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/data/0445bc9cd/89259b9e404c4319a095dcac0b44b86b/FLAGca9cef873 [2020-11-30 01:23:50,183 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/data/0445bc9cd/89259b9e404c4319a095dcac0b44b86b [2020-11-30 01:23:50,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:23:50,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:23:50,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:23:50,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:23:50,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:23:50,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5918d2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50, skipping insertion in model container [2020-11-30 01:23:50,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:23:50,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:23:50,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:23:50,607 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:23:50,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:23:50,782 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:23:50,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50 WrapperNode [2020-11-30 01:23:50,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:23:50,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:23:50,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:23:50,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:23:50,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:23:50,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:23:50,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:23:50,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:23:50,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:50,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:51,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... [2020-11-30 01:23:51,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:23:51,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:23:51,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:23:51,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:23:51,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:23:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:23:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:23:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:23:51,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:23:52,381 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:23:52,382 INFO L298 CfgBuilder]: Removed 124 assume(true) statements. [2020-11-30 01:23:52,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:52 BoogieIcfgContainer [2020-11-30 01:23:52,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:23:52,388 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:23:52,389 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:23:52,393 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:23:52,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:23:52,395 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:23:50" (1/3) ... [2020-11-30 01:23:52,397 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18246c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:23:52, skipping insertion in model container [2020-11-30 01:23:52,397 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:23:52,398 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:50" (2/3) ... [2020-11-30 01:23:52,399 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18246c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:23:52, skipping insertion in model container [2020-11-30 01:23:52,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:23:52,399 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:52" (3/3) ... [2020-11-30 01:23:52,402 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2020-11-30 01:23:52,479 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:23:52,480 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:23:52,480 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:23:52,480 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:23:52,480 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:23:52,480 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:23:52,481 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:23:52,481 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:23:52,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-30 01:23:52,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-30 01:23:52,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:23:52,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:23:52,542 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,542 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,543 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:23:52,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-30 01:23:52,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-30 01:23:52,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:23:52,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:23:52,552 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,553 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,560 INFO L794 eck$LassoCheckResult]: Stem: 36#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.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; 15#L-1true havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 12#L533true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 20#L541true main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 21#L402true assume 0 != main_~tmp~4; 4#L376true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 69#L920-1true [2020-11-30 01:23:52,561 INFO L796 eck$LassoCheckResult]: Loop: 69#L920-1true assume !false; 3#L58true assume test_~splverifierCounter~0 < 4; 31#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 63#L67true assume !(0 != test_~tmp~0); 60#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 39#L77true assume !(0 != test_~tmp___0~0); 37#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 24#L87true assume 0 != test_~tmp___2~0; 45#L93-1true assume !(0 != ~pumpRunning~0); 89#L130true assume !(0 != ~systemActive~0); 52#L137true havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 70#L492true __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 67#L920true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 69#L920-1true [2020-11-30 01:23:52,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:52,569 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:23:52,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:52,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897738931] [2020-11-30 01:23:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:52,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:53,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:53,150 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:23:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:53,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1672602483, now seen corresponding path program 1 times [2020-11-30 01:23:53,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:53,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495969649] [2020-11-30 01:23:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:53,174 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:53,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:53,186 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:23:53,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:53,198 INFO L82 PathProgramCache]: Analyzing trace with hash 41676455, now seen corresponding path program 1 times [2020-11-30 01:23:53,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:53,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335481808] [2020-11-30 01:23:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:53,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335481808] [2020-11-30 01:23:53,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:53,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:23:53,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412749840] [2020-11-30 01:23:53,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:53,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:23:53,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:23:53,560 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 6 states. [2020-11-30 01:23:54,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:54,004 INFO L93 Difference]: Finished difference Result 216 states and 300 transitions. [2020-11-30 01:23:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:23:54,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 300 transitions. [2020-11-30 01:23:54,022 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2020-11-30 01:23:54,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 279 transitions. [2020-11-30 01:23:54,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2020-11-30 01:23:54,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2020-11-30 01:23:54,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 279 transitions. [2020-11-30 01:23:54,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:23:54,039 INFO L691 BuchiCegarLoop]: Abstraction has 195 states and 279 transitions. [2020-11-30 01:23:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 279 transitions. [2020-11-30 01:23:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 120. [2020-11-30 01:23:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-30 01:23:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2020-11-30 01:23:54,090 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2020-11-30 01:23:54,090 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2020-11-30 01:23:54,090 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:23:54,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2020-11-30 01:23:54,094 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2020-11-30 01:23:54,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:23:54,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:23:54,095 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:23:54,095 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:54,096 INFO L794 eck$LassoCheckResult]: Stem: 367#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.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; 346#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 341#L533 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 342#L541 main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 354#L402 assume 0 != main_~tmp~4; 326#L376 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 327#L920-1 [2020-11-30 01:23:54,096 INFO L796 eck$LassoCheckResult]: Loop: 327#L920-1 assume !false; 323#L58 assume test_~splverifierCounter~0 < 4; 324#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 361#L67 assume !(0 != test_~tmp~0); 351#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 369#L77 assume !(0 != test_~tmp___0~0); 368#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 355#L87 assume 0 != test_~tmp___2~0; 356#L93-1 assume !(0 != ~pumpRunning~0); 375#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 389#L162 assume !(0 == ~pumpRunning~0); 373#L137 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 380#L492 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 394#L920 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 327#L920-1 [2020-11-30 01:23:54,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:54,097 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:23:54,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:54,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963264052] [2020-11-30 01:23:54,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:54,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:54,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:54,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:23:54,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:54,347 INFO L82 PathProgramCache]: Analyzing trace with hash -352838723, now seen corresponding path program 1 times [2020-11-30 01:23:54,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:54,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096562720] [2020-11-30 01:23:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:54,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096562720] [2020-11-30 01:23:54,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:54,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:23:54,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275124192] [2020-11-30 01:23:54,379 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:23:54,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:54,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:23:54,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:23:54,382 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand 3 states. [2020-11-30 01:23:54,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:54,475 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2020-11-30 01:23:54,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:23:54,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 214 transitions. [2020-11-30 01:23:54,479 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2020-11-30 01:23:54,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 214 transitions. [2020-11-30 01:23:54,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2020-11-30 01:23:54,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2020-11-30 01:23:54,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 214 transitions. [2020-11-30 01:23:54,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:23:54,485 INFO L691 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2020-11-30 01:23:54,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 214 transitions. [2020-11-30 01:23:54,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-11-30 01:23:54,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-30 01:23:54,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2020-11-30 01:23:54,510 INFO L714 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2020-11-30 01:23:54,513 INFO L594 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2020-11-30 01:23:54,513 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:23:54,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 214 transitions. [2020-11-30 01:23:54,515 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2020-11-30 01:23:54,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:23:54,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:23:54,517 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:23:54,518 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:54,518 INFO L794 eck$LassoCheckResult]: Stem: 652#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.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; 630#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 625#L533 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 626#L541 main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 639#L402 assume 0 != main_~tmp~4; 611#L376 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 612#L920-1 [2020-11-30 01:23:54,521 INFO L796 eck$LassoCheckResult]: Loop: 612#L920-1 assume !false; 608#L58 assume test_~splverifierCounter~0 < 4; 609#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 646#L67 assume !(0 != test_~tmp~0); 636#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 654#L77 assume !(0 != test_~tmp___0~0); 653#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 640#L87 assume 0 != test_~tmp___2~0; 641#L93-1 assume !(0 != ~pumpRunning~0); 660#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 679#L162 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 680#L500 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 643#L505 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 644#L282 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 645#L282-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 637#L288 processEnvironment_#t~ret11 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret11;havoc processEnvironment_#t~ret11; 638#L166 assume !(0 != processEnvironment_~tmp~1); 659#L137 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 762#L492 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 755#L920 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 612#L920-1 [2020-11-30 01:23:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:54,523 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:23:54,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:54,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346875158] [2020-11-30 01:23:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:54,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:54,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:54,704 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:23:54,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:54,717 INFO L82 PathProgramCache]: Analyzing trace with hash -539212887, now seen corresponding path program 1 times [2020-11-30 01:23:54,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:54,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386991589] [2020-11-30 01:23:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:54,733 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:54,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:54,748 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:23:54,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:54,749 INFO L82 PathProgramCache]: Analyzing trace with hash -524500913, now seen corresponding path program 1 times [2020-11-30 01:23:54,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:54,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399089187] [2020-11-30 01:23:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:54,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:23:54,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:23:54,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:23:55,033 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-30 01:25:43,219 WARN L193 SmtUtils]: Spent 1.80 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:26:46,831 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:26:46,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:26:46 BoogieIcfgContainer [2020-11-30 01:26:46,986 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:26:46,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:26:46,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:26:46,987 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:26:46,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:52" (3/4) ... [2020-11-30 01:26:46,990 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:26:47,061 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7740bcc2-b08b-4687-96a7-8023bf75ee28/bin/uautomizer/witness.graphml [2020-11-30 01:26:47,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:26:47,064 INFO L168 Benchmark]: Toolchain (without parser) took 176874.97 ms. Allocated memory was 86.0 MB in the beginning and 136.3 MB in the end (delta: 50.3 MB). Free memory was 49.9 MB in the beginning and 82.1 MB in the end (delta: -32.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:47,065 INFO L168 Benchmark]: CDTParser took 1.16 ms. Allocated memory is still 86.0 MB. Free memory was 67.2 MB in the beginning and 67.1 MB in the end (delta: 54.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:26:47,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.64 ms. Allocated memory is still 86.0 MB. Free memory was 49.7 MB in the beginning and 53.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:47,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.93 ms. Allocated memory is still 86.0 MB. Free memory was 53.4 MB in the beginning and 50.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:47,067 INFO L168 Benchmark]: Boogie Preprocessor took 104.45 ms. Allocated memory is still 86.0 MB. Free memory was 50.2 MB in the beginning and 47.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:47,068 INFO L168 Benchmark]: RCFGBuilder took 1362.15 ms. Allocated memory is still 86.0 MB. Free memory was 47.9 MB in the beginning and 52.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:47,069 INFO L168 Benchmark]: BuchiAutomizer took 174597.39 ms. Allocated memory was 86.0 MB in the beginning and 136.3 MB in the end (delta: 50.3 MB). Free memory was 52.6 MB in the beginning and 84.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 81.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:47,069 INFO L168 Benchmark]: Witness Printer took 76.19 ms. Allocated memory is still 136.3 MB. Free memory was 84.2 MB in the beginning and 82.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:47,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16 ms. Allocated memory is still 86.0 MB. Free memory was 67.2 MB in the beginning and 67.1 MB in the end (delta: 54.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 595.64 ms. Allocated memory is still 86.0 MB. Free memory was 49.7 MB in the beginning and 53.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 128.93 ms. Allocated memory is still 86.0 MB. Free memory was 53.4 MB in the beginning and 50.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 104.45 ms. Allocated memory is still 86.0 MB. Free memory was 50.2 MB in the beginning and 47.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1362.15 ms. Allocated memory is still 86.0 MB. Free memory was 47.9 MB in the beginning and 52.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 174597.39 ms. Allocated memory was 86.0 MB in the beginning and 136.3 MB in the end (delta: 50.3 MB). Free memory was 52.6 MB in the beginning and 84.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 81.4 MB. Max. memory is 16.1 GB. * Witness Printer took 76.19 ms. Allocated memory is still 136.3 MB. Free memory was 84.2 MB in the beginning and 82.1 MB in the end (delta: 2.1 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 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 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 174.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 173.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 159 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 227 SDtfs, 537 SDslu, 626 SDs, 0 SdLazy, 64 SolverSat, 23 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: 57]: 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=22481, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10cc0a0b=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4407e346=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25502c87=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65441d1e=0, retValue_acc=0, NULL=22460, NULL=0, NULL=0, NULL=22465, NULL=22464, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@362beded=0, NULL=22462, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34aca108=0, NULL=22468, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f0c353d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@478632bd=0, NULL=0, NULL=22456, NULL=22471, retValue_acc=0, NULL=0, tmp___1=0, NULL=22473, NULL=22480, NULL=0, NULL=0, NULL=22463, cleanupTimeShifts=4, tmp=0, NULL=22475, tmp___0=0, NULL=22476, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, \result=0, tmp___0=0, NULL=22470, \result=1, head=0, pumpRunning=0, \result=0, retValue_acc=1, NULL=22478, NULL=22466, tmp=1, NULL=0, NULL=22459, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22469, NULL=0, \result=1, NULL=22454, NULL=0, retValue_acc=1, NULL=0, tmp=1, NULL=22467, NULL=0, NULL=0, NULL=22472, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@532b8209=0, tmp=1, tmp___2=53, NULL=0, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=22461, NULL=22474, NULL=22455, tmp=0, head=0, NULL=22477, NULL=22479, NULL=0, NULL=0, NULL=22457, NULL=22458} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L393] int retValue_acc ; [L394] int tmp ; [L537] int retValue_acc ; [L540] retValue_acc = 1 [L541] return (retValue_acc); [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L159] int tmp ; [L162] COND TRUE ! pumpRunning [L274] int retValue_acc ; [L275] int tmp ; [L276] int tmp___0 ; [L497] int retValue_acc ; [L500] COND TRUE waterLevel < 2 [L501] retValue_acc = 1 [L502] return (retValue_acc); [L280] tmp = isHighWaterSensorDry() [L282] COND TRUE \read(tmp) [L283] tmp___0 = 0 [L287] retValue_acc = tmp___0 [L288] return (retValue_acc); [L164] tmp = isHighWaterLevel() [L166] COND FALSE !(\read(tmp)) [L913] int tmp ; [L914] int tmp___0 ; [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L918] tmp = getWaterLevel() [L920] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...