./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.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_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/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 b00f2b5e86cdb554aa1013f25ad23bb3779c67ba ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:44:04,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:44:04,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:44:04,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:44:04,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:44:04,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:44:04,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:44:04,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:44:04,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:44:04,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:44:04,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:44:04,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:44:04,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:44:04,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:44:04,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:44:04,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:44:04,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:44:04,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:44:04,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:44:04,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:44:04,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:44:04,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:44:04,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:44:04,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:44:04,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:44:04,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:44:04,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:44:04,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:44:04,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:44:04,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:44:04,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:44:04,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:44:04,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:44:04,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:44:04,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:44:04,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:44:04,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:44:04,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:44:04,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:44:04,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:44:04,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:44:04,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:44:04,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:44:04,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:44:04,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:44:04,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:44:04,606 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:44:04,606 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:44:04,607 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:44:04,607 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:44:04,607 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:44:04,608 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:44:04,608 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:44:04,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:44:04,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:44:04,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:44:04,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:44:04,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:44:04,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:44:04,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:44:04,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:44:04,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:44:04,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:44:04,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:44:04,612 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:44:04,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:44:04,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:44:04,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:44:04,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:44:04,613 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:44:04,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:44:04,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:44:04,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:44:04,615 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:44:04,616 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:44:04,616 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_8b47049c-9a42-46fd-8a17-a67ff9789c21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b00f2b5e86cdb554aa1013f25ad23bb3779c67ba [2020-11-29 19:44:04,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:44:04,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:44:04,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:44:04,966 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:44:04,967 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:44:04,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2020-11-29 19:44:05,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/data/c79cb101a/a49ba29b62b14830a9fda20b806c82ce/FLAGdeaa41421 [2020-11-29 19:44:05,748 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:44:05,748 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2020-11-29 19:44:05,771 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/data/c79cb101a/a49ba29b62b14830a9fda20b806c82ce/FLAGdeaa41421 [2020-11-29 19:44:06,011 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/data/c79cb101a/a49ba29b62b14830a9fda20b806c82ce [2020-11-29 19:44:06,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:44:06,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:44:06,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:44:06,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:44:06,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:44:06,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:06,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18170a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06, skipping insertion in model container [2020-11-29 19:44:06,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:06,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:44:06,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:44:06,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:44:06,697 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:44:06,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:44:06,867 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:44:06,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06 WrapperNode [2020-11-29 19:44:06,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:44:06,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:44:06,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:44:06,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:44:06,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:06,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:06,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:44:06,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:44:06,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:44:06,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:44:06,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:06,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:06,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:06,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:07,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:07,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:07,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... [2020-11-29 19:44:07,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:44:07,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:44:07,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:44:07,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:44:07,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/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 19:44:07,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:44:07,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:44:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:44:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:44:08,576 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:44:08,578 INFO L298 CfgBuilder]: Removed 176 assume(true) statements. [2020-11-29 19:44:08,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:44:08 BoogieIcfgContainer [2020-11-29 19:44:08,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:44:08,586 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:44:08,587 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:44:08,591 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:44:08,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:44:08,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:44:06" (1/3) ... [2020-11-29 19:44:08,595 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74315867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:44:08, skipping insertion in model container [2020-11-29 19:44:08,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:44:08,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:06" (2/3) ... [2020-11-29 19:44:08,596 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74315867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:44:08, skipping insertion in model container [2020-11-29 19:44:08,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:44:08,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:44:08" (3/3) ... [2020-11-29 19:44:08,601 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2020-11-29 19:44:08,659 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:44:08,660 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:44:08,660 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:44:08,660 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:44:08,660 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:44:08,661 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:44:08,661 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:44:08,661 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:44:08,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2020-11-29 19:44:08,706 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2020-11-29 19:44:08,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:08,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:08,718 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:08,718 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:08,718 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:44:08,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2020-11-29 19:44:08,730 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2020-11-29 19:44:08,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:08,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:08,732 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:08,732 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:08,738 INFO L794 eck$LassoCheckResult]: Stem: 109#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 16#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 123#L558true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 13#L566true main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 14#L522true assume 0 != main_~tmp~5; 35#L494true ~switchedOnBeforeTS~0 := 0; 32#L943true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 78#L964-1true [2020-11-29 19:44:08,739 INFO L796 eck$LassoCheckResult]: Loop: 78#L964-1true assume !false; 65#L268true assume test_~splverifierCounter~0 < 4; 127#L269true test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 20#L277true assume !(0 != test_~tmp~4); 124#L277-1true test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 89#L287true assume !(0 != test_~tmp___0~2); 57#L287-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 108#L297true assume 0 != test_~tmp___2~0; 98#L303-2true havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 3#L175true __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 76#L953true assume !(0 != ~pumpRunning~0); 90#L64true assume !(0 != ~systemActive~0); 115#L71true havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 5#L398true __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 75#L964true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 78#L964-1true [2020-11-29 19:44:08,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:08,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:44:08,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:08,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214954547] [2020-11-29 19:44:08,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:09,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:09,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:09,274 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:09,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:09,276 INFO L82 PathProgramCache]: Analyzing trace with hash 96105518, now seen corresponding path program 1 times [2020-11-29 19:44:09,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:09,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200170454] [2020-11-29 19:44:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:09,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:09,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:09,310 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:09,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:09,312 INFO L82 PathProgramCache]: Analyzing trace with hash 2030130728, now seen corresponding path program 1 times [2020-11-29 19:44:09,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:09,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237497095] [2020-11-29 19:44:09,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:09,521 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 19:44:09,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237497095] [2020-11-29 19:44:09,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:09,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:44:09,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723121189] [2020-11-29 19:44:09,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:09,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:44:09,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:44:09,731 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 6 states. [2020-11-29 19:44:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:10,032 INFO L93 Difference]: Finished difference Result 123 states and 175 transitions. [2020-11-29 19:44:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:44:10,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 175 transitions. [2020-11-29 19:44:10,041 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-29 19:44:10,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 116 states and 168 transitions. [2020-11-29 19:44:10,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2020-11-29 19:44:10,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2020-11-29 19:44:10,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 168 transitions. [2020-11-29 19:44:10,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:44:10,053 INFO L691 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2020-11-29 19:44:10,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 168 transitions. [2020-11-29 19:44:10,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-29 19:44:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-29 19:44:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2020-11-29 19:44:10,103 INFO L714 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2020-11-29 19:44:10,103 INFO L594 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2020-11-29 19:44:10,103 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:44:10,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 168 transitions. [2020-11-29 19:44:10,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-29 19:44:10,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:10,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:10,110 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:10,110 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:10,110 INFO L794 eck$LassoCheckResult]: Stem: 381#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 290#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 291#L558 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 286#L566 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 287#L522 assume 0 != main_~tmp~5; 288#L494 ~switchedOnBeforeTS~0 := 0; 321#L943 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 322#L964-1 [2020-11-29 19:44:10,111 INFO L796 eck$LassoCheckResult]: Loop: 322#L964-1 assume !false; 359#L268 assume test_~splverifierCounter~0 < 4; 360#L269 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 298#L277 assume !(0 != test_~tmp~4); 300#L277-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 373#L287 assume !(0 != test_~tmp___0~2); 351#L287-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 352#L297 assume 0 != test_~tmp___2~0; 375#L303-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 267#L175 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 268#L953 assume !(0 != ~pumpRunning~0); 295#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 344#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 345#L96-1 assume !(0 == ~pumpRunning~0); 365#L71 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 271#L398 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 272#L964 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 322#L964-1 [2020-11-29 19:44:10,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:10,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:44:10,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:10,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840993527] [2020-11-29 19:44:10,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:10,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:10,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:10,301 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:10,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:10,302 INFO L82 PathProgramCache]: Analyzing trace with hash -477603700, now seen corresponding path program 1 times [2020-11-29 19:44:10,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:10,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761751540] [2020-11-29 19:44:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:10,323 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 19:44:10,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761751540] [2020-11-29 19:44:10,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:10,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:44:10,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587834858] [2020-11-29 19:44:10,325 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:44:10,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:10,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:44:10,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:44:10,326 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. cyclomatic complexity: 54 Second operand 3 states. [2020-11-29 19:44:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:10,524 INFO L93 Difference]: Finished difference Result 165 states and 227 transitions. [2020-11-29 19:44:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:44:10,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 227 transitions. [2020-11-29 19:44:10,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-29 19:44:10,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 165 states and 227 transitions. [2020-11-29 19:44:10,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 165 [2020-11-29 19:44:10,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 165 [2020-11-29 19:44:10,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 227 transitions. [2020-11-29 19:44:10,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:44:10,541 INFO L691 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2020-11-29 19:44:10,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 227 transitions. [2020-11-29 19:44:10,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-11-29 19:44:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-11-29 19:44:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 227 transitions. [2020-11-29 19:44:10,561 INFO L714 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2020-11-29 19:44:10,561 INFO L594 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2020-11-29 19:44:10,561 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:44:10,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 227 transitions. [2020-11-29 19:44:10,563 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-29 19:44:10,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:10,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:10,565 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:10,565 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:10,565 INFO L794 eck$LassoCheckResult]: Stem: 677#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 579#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 580#L558 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 573#L566 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 574#L522 assume 0 != main_~tmp~5; 575#L494 ~switchedOnBeforeTS~0 := 0; 610#L943 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 611#L964-1 [2020-11-29 19:44:10,572 INFO L796 eck$LassoCheckResult]: Loop: 611#L964-1 assume !false; 648#L268 assume test_~splverifierCounter~0 < 4; 649#L269 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 585#L277 assume !(0 != test_~tmp~4); 587#L277-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 680#L287 assume !(0 != test_~tmp___0~2); 694#L287-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 691#L297 assume 0 != test_~tmp___2~0; 688#L303-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 554#L175 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 555#L953 assume !(0 != ~pumpRunning~0); 658#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 631#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 632#L96-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 621#L406-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 622#L411-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 619#L224-3 assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; 614#L224-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 558#L230-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 559#L100-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 654#L71 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 718#L398 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 657#L964 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 611#L964-1 [2020-11-29 19:44:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:10,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:44:10,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:10,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340686260] [2020-11-29 19:44:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:10,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:10,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:10,693 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:10,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1457587910, now seen corresponding path program 1 times [2020-11-29 19:44:10,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:10,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738131567] [2020-11-29 19:44:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:10,746 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 19:44:10,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738131567] [2020-11-29 19:44:10,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:10,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:44:10,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084779647] [2020-11-29 19:44:10,747 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:44:10,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:10,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:44:10,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:44:10,748 INFO L87 Difference]: Start difference. First operand 165 states and 227 transitions. cyclomatic complexity: 64 Second operand 4 states. [2020-11-29 19:44:10,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:10,998 INFO L93 Difference]: Finished difference Result 317 states and 429 transitions. [2020-11-29 19:44:10,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:44:10,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 429 transitions. [2020-11-29 19:44:11,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2020-11-29 19:44:11,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 317 states and 429 transitions. [2020-11-29 19:44:11,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 317 [2020-11-29 19:44:11,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 317 [2020-11-29 19:44:11,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 429 transitions. [2020-11-29 19:44:11,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:44:11,026 INFO L691 BuchiCegarLoop]: Abstraction has 317 states and 429 transitions. [2020-11-29 19:44:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 429 transitions. [2020-11-29 19:44:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 177. [2020-11-29 19:44:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-11-29 19:44:11,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 239 transitions. [2020-11-29 19:44:11,049 INFO L714 BuchiCegarLoop]: Abstraction has 177 states and 239 transitions. [2020-11-29 19:44:11,050 INFO L594 BuchiCegarLoop]: Abstraction has 177 states and 239 transitions. [2020-11-29 19:44:11,050 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:44:11,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 239 transitions. [2020-11-29 19:44:11,052 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2020-11-29 19:44:11,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:11,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:11,055 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:11,056 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:11,056 INFO L794 eck$LassoCheckResult]: Stem: 1175#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 1069#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1070#L558 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1065#L566 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 1066#L522 assume 0 != main_~tmp~5; 1067#L494 ~switchedOnBeforeTS~0 := 0; 1106#L943 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1107#L964-1 [2020-11-29 19:44:11,056 INFO L796 eck$LassoCheckResult]: Loop: 1107#L964-1 assume !false; 1195#L268 assume test_~splverifierCounter~0 < 4; 1194#L269 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 1193#L277 assume !(0 != test_~tmp~4); 1191#L277-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 1190#L287 assume !(0 != test_~tmp___0~2); 1188#L287-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 1187#L297 assume 0 != test_~tmp___2~0; 1169#L303-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1046#L175 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 1047#L953 assume !(0 != ~pumpRunning~0); 1158#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1129#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1130#L96-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1118#L406-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1120#L411-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 1184#L224-3 assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; 1110#L224-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1050#L230-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1051#L100-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1154#L71 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 1202#L398 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 1198#L964 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 1107#L964-1 [2020-11-29 19:44:11,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:11,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 19:44:11,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:11,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647509380] [2020-11-29 19:44:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:11,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:11,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:11,236 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:11,237 INFO L82 PathProgramCache]: Analyzing trace with hash -777529540, now seen corresponding path program 1 times [2020-11-29 19:44:11,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:11,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890155725] [2020-11-29 19:44:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:11,281 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 19:44:11,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890155725] [2020-11-29 19:44:11,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:11,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:44:11,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875796596] [2020-11-29 19:44:11,283 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:44:11,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:11,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:44:11,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:44:11,284 INFO L87 Difference]: Start difference. First operand 177 states and 239 transitions. cyclomatic complexity: 64 Second operand 5 states. [2020-11-29 19:44:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:11,559 INFO L93 Difference]: Finished difference Result 433 states and 580 transitions. [2020-11-29 19:44:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:44:11,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 433 states and 580 transitions. [2020-11-29 19:44:11,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 310 [2020-11-29 19:44:11,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 433 states to 433 states and 580 transitions. [2020-11-29 19:44:11,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 433 [2020-11-29 19:44:11,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 433 [2020-11-29 19:44:11,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 433 states and 580 transitions. [2020-11-29 19:44:11,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:44:11,576 INFO L691 BuchiCegarLoop]: Abstraction has 433 states and 580 transitions. [2020-11-29 19:44:11,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states and 580 transitions. [2020-11-29 19:44:11,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 195. [2020-11-29 19:44:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-29 19:44:11,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2020-11-29 19:44:11,611 INFO L714 BuchiCegarLoop]: Abstraction has 195 states and 257 transitions. [2020-11-29 19:44:11,614 INFO L594 BuchiCegarLoop]: Abstraction has 195 states and 257 transitions. [2020-11-29 19:44:11,614 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:44:11,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 257 transitions. [2020-11-29 19:44:11,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 134 [2020-11-29 19:44:11,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:11,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:11,619 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:11,620 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:11,620 INFO L794 eck$LassoCheckResult]: Stem: 1816#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 1695#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1696#L558 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1690#L566 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 1691#L522 assume 0 != main_~tmp~5; 1692#L494 ~switchedOnBeforeTS~0 := 0; 1732#L943 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1733#L964-1 [2020-11-29 19:44:11,621 INFO L796 eck$LassoCheckResult]: Loop: 1733#L964-1 assume !false; 1784#L268 assume test_~splverifierCounter~0 < 4; 1785#L269 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 1864#L277 assume !(0 != test_~tmp~4); 1862#L277-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 1861#L287 assume !(0 != test_~tmp___0~2); 1859#L287-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 1815#L297 assume 0 != test_~tmp___2~0; 1806#L303-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1670#L175 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 1671#L953 assume !(0 != ~pumpRunning~0); 1797#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1764#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1765#L96-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1747#L406-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1748#L411-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 1742#L224-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1743#L224-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1674#L230-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1675#L100-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1821#L71 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 1858#L398 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 1795#L964 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 1733#L964-1 [2020-11-29 19:44:11,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:11,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2020-11-29 19:44:11,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:11,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540309948] [2020-11-29 19:44:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:11,658 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:11,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:11,729 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:11,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1062372024, now seen corresponding path program 1 times [2020-11-29 19:44:11,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:11,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936228962] [2020-11-29 19:44:11,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:11,779 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 19:44:11,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936228962] [2020-11-29 19:44:11,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:11,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:44:11,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888733515] [2020-11-29 19:44:11,780 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:44:11,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:11,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:44:11,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:44:11,782 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. cyclomatic complexity: 64 Second operand 5 states. [2020-11-29 19:44:12,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:12,107 INFO L93 Difference]: Finished difference Result 481 states and 629 transitions. [2020-11-29 19:44:12,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:44:12,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 481 states and 629 transitions. [2020-11-29 19:44:12,115 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 313 [2020-11-29 19:44:12,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 481 states to 481 states and 629 transitions. [2020-11-29 19:44:12,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2020-11-29 19:44:12,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2020-11-29 19:44:12,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 629 transitions. [2020-11-29 19:44:12,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:44:12,124 INFO L691 BuchiCegarLoop]: Abstraction has 481 states and 629 transitions. [2020-11-29 19:44:12,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 629 transitions. [2020-11-29 19:44:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 341. [2020-11-29 19:44:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-11-29 19:44:12,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 445 transitions. [2020-11-29 19:44:12,145 INFO L714 BuchiCegarLoop]: Abstraction has 341 states and 445 transitions. [2020-11-29 19:44:12,145 INFO L594 BuchiCegarLoop]: Abstraction has 341 states and 445 transitions. [2020-11-29 19:44:12,145 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 19:44:12,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 445 transitions. [2020-11-29 19:44:12,148 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2020-11-29 19:44:12,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:12,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:12,150 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:12,150 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:12,150 INFO L794 eck$LassoCheckResult]: Stem: 2488#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 2387#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 2388#L558 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 2381#L566 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 2382#L522 assume 0 != main_~tmp~5; 2383#L494 ~switchedOnBeforeTS~0 := 0; 2419#L943 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2420#L964-1 [2020-11-29 19:44:12,151 INFO L796 eck$LassoCheckResult]: Loop: 2420#L964-1 assume !false; 2458#L268 assume test_~splverifierCounter~0 < 4; 2459#L269 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 2700#L277 assume !(0 != test_~tmp~4); 2699#L277-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 2698#L287 assume !(0 != test_~tmp___0~2); 2696#L287-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 2695#L297 assume 0 != test_~tmp___2~0; 2692#L303-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2691#L175 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 2468#L953 assume !(0 != ~pumpRunning~0); 2469#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2440#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2441#L96-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2429#L406-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2430#L411-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 2426#L224-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 2423#L224-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2366#L230-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 2367#L100-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2464#L71 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 2368#L398 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 2369#L964 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2415#L175-1 __utac_acc__Specification5_spec__3_#t~ret81 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 2416#L968 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2420#L964-1 [2020-11-29 19:44:12,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:12,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 6 times [2020-11-29 19:44:12,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:12,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721874872] [2020-11-29 19:44:12,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:12,202 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:12,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:12,264 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:12,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1262715469, now seen corresponding path program 1 times [2020-11-29 19:44:12,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:12,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873200819] [2020-11-29 19:44:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:12,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:12,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:12,298 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:12,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1326141651, now seen corresponding path program 1 times [2020-11-29 19:44:12,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:12,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878399799] [2020-11-29 19:44:12,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:12,336 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:12,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:12,420 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:12,709 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-11-29 19:44:12,878 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-11-29 19:45:45,128 WARN L193 SmtUtils]: Spent 1.54 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:46:50,392 WARN L193 SmtUtils]: Spent 1.09 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:46:50,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:46:50 BoogieIcfgContainer [2020-11-29 19:46:50,612 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:46:50,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:46:50,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:46:50,616 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:46:50,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:44:08" (3/4) ... [2020-11-29 19:46:50,622 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:46:50,721 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b47049c-9a42-46fd-8a17-a67ff9789c21/bin/uautomizer/witness.graphml [2020-11-29 19:46:50,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:46:50,725 INFO L168 Benchmark]: Toolchain (without parser) took 164706.10 ms. Allocated memory was 102.8 MB in the beginning and 167.8 MB in the end (delta: 65.0 MB). Free memory was 73.6 MB in the beginning and 95.8 MB in the end (delta: -22.2 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:50,726 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 102.8 MB. Free memory was 59.4 MB in the beginning and 59.3 MB in the end (delta: 47.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:46:50,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.90 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 68.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:50,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.83 ms. Allocated memory is still 102.8 MB. Free memory was 68.0 MB in the beginning and 64.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:50,728 INFO L168 Benchmark]: Boogie Preprocessor took 57.74 ms. Allocated memory is still 102.8 MB. Free memory was 64.3 MB in the beginning and 61.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:50,729 INFO L168 Benchmark]: RCFGBuilder took 1556.80 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 61.8 MB in the beginning and 96.8 MB in the end (delta: -35.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:50,729 INFO L168 Benchmark]: BuchiAutomizer took 162025.74 ms. Allocated memory was 125.8 MB in the beginning and 167.8 MB in the end (delta: 41.9 MB). Free memory was 96.8 MB in the beginning and 98.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:50,730 INFO L168 Benchmark]: Witness Printer took 108.37 ms. Allocated memory is still 167.8 MB. Free memory was 98.9 MB in the beginning and 95.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:50,733 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 102.8 MB. Free memory was 59.4 MB in the beginning and 59.3 MB in the end (delta: 47.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 840.90 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 68.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.83 ms. Allocated memory is still 102.8 MB. Free memory was 68.0 MB in the beginning and 64.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.74 ms. Allocated memory is still 102.8 MB. Free memory was 64.3 MB in the beginning and 61.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1556.80 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 61.8 MB in the beginning and 96.8 MB in the end (delta: -35.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 162025.74 ms. Allocated memory was 125.8 MB in the beginning and 167.8 MB in the end (delta: 41.9 MB). Free memory was 96.8 MB in the beginning and 98.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. * Witness Printer took 108.37 ms. Allocated memory is still 167.8 MB. Free memory was 98.9 MB in the beginning and 95.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 341 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 161.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 160.1s. Construction of modules took 0.8s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 518 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 341 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1037 SDtfs, 1925 SDslu, 1423 SDs, 0 SdLazy, 302 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time LassoAnalysisResults: nont1 unkn0 SFLI4 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: 267]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=1, NULL=7078, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34345877=0, NULL=7056, NULL=7079, methaneLevelCritical=0, retValue_acc=1, tmp=0, NULL=7069, retValue_acc=0, NULL=0, tmp___1=0, NULL=7070, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@404b0c26=0, NULL=7057, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60b8e9c1=0, cleanupTimeShifts=4, NULL=7063, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d2a339f=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ee7244f=0, NULL=7073, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@434232e8=0, NULL=0, NULL=0, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c9ec7a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47c43073=39, NULL=0, NULL=0, NULL=7075, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39d33dd4=0, NULL=0, NULL=0, tmp___0=0, retValue_acc=1, NULL=7074, NULL=7065, tmp=0, head=0, NULL=0, NULL=0, NULL=7060, NULL=7061, NULL=7062, NULL=0, NULL=7080, retValue_acc=0, NULL=7077, NULL=7072, tmp=1, tmp___0=0, NULL=0, NULL=7059, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cb6ae=0, switchedOnBeforeTS=0, NULL=7067, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eb13390=0, \result=0, NULL=7053, \result=0, tmp___0=0, NULL=7071, NULL=0, NULL=7076, NULL=0, NULL=7066, NULL=0, NULL=7068, NULL=7054, tmp___2=39, splverifierCounter=0, NULL=0, NULL=7055, retValue_acc=0, NULL=7058, NULL=0, NULL=0, NULL=7064} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L52] int pumpRunning = 0; [L53] int systemActive = 1; [L323] int waterLevel = 1; [L324] int methaneLevelCritical = 0; [L435] int cleanupTimeShifts = 4; [L740] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L937] int switchedOnBeforeTS ; [L513] int retValue_acc ; [L514] int tmp ; [L562] int retValue_acc ; [L565] retValue_acc = 1 [L566] return (retValue_acc); [L520] tmp = valid_product() [L522] COND TRUE \read(tmp) [L942] switchedOnBeforeTS = 0 [L258] int splverifierCounter ; [L259] int tmp ; [L260] int tmp___0 ; [L261] int tmp___1 ; [L262] int tmp___2 ; [L265] splverifierCounter = 0 Loop: [L267] COND TRUE 1 [L269] COND TRUE splverifierCounter < 4 [L275] tmp = __VERIFIER_nondet_int() [L277] COND FALSE !(\read(tmp)) [L285] tmp___0 = __VERIFIER_nondet_int() [L287] COND FALSE !(\read(tmp___0)) [L295] tmp___2 = __VERIFIER_nondet_int() [L297] COND TRUE \read(tmp___2) [L171] int retValue_acc ; [L174] retValue_acc = pumpRunning [L175] return (retValue_acc); [L951] switchedOnBeforeTS = isPumpRunning() [L64] COND FALSE !(\read(pumpRunning)) [L71] COND TRUE \read(systemActive) [L119] int tmp ; [L122] COND FALSE !(\read(pumpRunning)) [L93] int tmp ; [L96] COND TRUE ! pumpRunning [L216] int retValue_acc ; [L217] int tmp ; [L218] int tmp___0 ; [L403] int retValue_acc ; [L406] COND TRUE waterLevel < 2 [L407] retValue_acc = 1 [L408] return (retValue_acc); [L222] tmp = isHighWaterSensorDry() [L224] COND TRUE \read(tmp) [L225] tmp___0 = 0 [L229] retValue_acc = tmp___0 [L230] return (retValue_acc); [L98] tmp = isHighWaterLevel() [L100] COND FALSE !(\read(tmp)) [L957] int tmp ; [L958] int tmp___0 ; [L394] int retValue_acc ; [L397] retValue_acc = waterLevel [L398] return (retValue_acc); [L962] tmp = getWaterLevel() [L964] COND TRUE tmp != 2 [L171] int retValue_acc ; [L174] retValue_acc = pumpRunning [L175] return (retValue_acc); [L966] tmp___0 = isPumpRunning() [L968] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...