./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/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 886ac0ae3890ab27ff2aed3926ccccbc5335b8b2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-69874e2 [2020-12-01 15:17:57,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:17:57,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:17:57,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:17:57,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:17:57,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:17:57,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:17:57,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:17:57,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:17:57,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:17:57,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:17:57,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:17:57,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:17:57,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:17:57,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:17:57,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:17:57,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:17:57,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:17:57,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:17:57,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:17:57,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:17:57,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:17:57,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:17:57,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:17:57,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:17:57,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:17:57,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:17:57,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:17:57,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:17:57,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:17:57,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:17:57,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:17:57,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:17:57,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:17:57,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:17:57,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:17:57,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:17:57,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:17:57,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:17:57,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:17:57,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:17:57,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:17:57,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:17:57,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:17:57,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:17:57,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:17:57,994 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:17:57,995 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:17:57,995 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:17:57,995 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:17:57,995 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:17:57,995 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:17:57,997 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:17:57,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:17:57,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:17:57,998 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:17:57,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:17:57,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:17:57,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:17:57,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:17:57,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:17:57,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:17:57,999 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:17:57,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:17:57,999 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:17:58,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:17:58,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:17:58,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:17:58,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:17:58,001 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:17:58,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:17:58,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:17:58,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:17:58,003 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:17:58,005 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:17:58,005 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_157d718b-ad9a-4006-82de-bb58f7496079/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 886ac0ae3890ab27ff2aed3926ccccbc5335b8b2 [2020-12-01 15:17:58,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:17:58,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:17:58,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:17:58,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:17:58,370 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:17:58,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2020-12-01 15:17:58,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/data/396cd7215/da81760cd1b446d99b3a112c1636f976/FLAGfb8481022 [2020-12-01 15:17:59,085 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:17:59,091 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2020-12-01 15:17:59,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/data/396cd7215/da81760cd1b446d99b3a112c1636f976/FLAGfb8481022 [2020-12-01 15:17:59,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/data/396cd7215/da81760cd1b446d99b3a112c1636f976 [2020-12-01 15:17:59,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:17:59,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:17:59,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:17:59,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:17:59,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:17:59,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:17:59,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7d0e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59, skipping insertion in model container [2020-12-01 15:17:59,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:17:59,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:17:59,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:17:59,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:17:59,758 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:17:59,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:17:59,916 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:17:59,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59 WrapperNode [2020-12-01 15:17:59,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:17:59,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:17:59,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:17:59,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:17:59,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:17:59,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:18:00,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:18:00,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:18:00,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:18:00,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:18:00,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:18:00,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:18:00,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:18:00,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:18:00,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:18:00,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:18:00,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... [2020-12-01 15:18:00,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:18:00,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:18:00,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:18:00,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:18:00,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/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 [2020-12-01 15:18:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:18:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:18:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:18:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:18:01,427 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:18:01,428 INFO L298 CfgBuilder]: Removed 202 assume(true) statements. [2020-12-01 15:18:01,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:18:01 BoogieIcfgContainer [2020-12-01 15:18:01,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:18:01,433 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:18:01,433 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:18:01,437 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:18:01,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:18:01,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:17:59" (1/3) ... [2020-12-01 15:18:01,440 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ce28836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:18:01, skipping insertion in model container [2020-12-01 15:18:01,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:18:01,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:59" (2/3) ... [2020-12-01 15:18:01,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ce28836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:18:01, skipping insertion in model container [2020-12-01 15:18:01,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:18:01,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:18:01" (3/3) ... [2020-12-01 15:18:01,445 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2020-12-01 15:18:01,508 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:18:01,509 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:18:01,509 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:18:01,509 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:18:01,509 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:18:01,509 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:18:01,510 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:18:01,510 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:18:01,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states. [2020-12-01 15:18:01,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-12-01 15:18:01,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:18:01,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:18:01,596 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:01,596 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:01,596 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:18:01,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states. [2020-12-01 15:18:01,608 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-12-01 15:18:01,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:18:01,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:18:01,610 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:01,610 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:01,614 INFO L794 eck$LassoCheckResult]: Stem: 106#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 6#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 18#L882true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 43#L890true main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 37#L978true assume 0 != main_~tmp~10; 10#L954true ~methAndRunningLastTime~0 := 0; 27#L824true havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 29#L835-1true [2020-12-01 15:18:01,615 INFO L796 eck$LassoCheckResult]: Loop: 29#L835-1true assume !false; 5#L533true assume test_~splverifierCounter~0 < 4; 97#L534true test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 103#L542true assume !(0 != test_~tmp~3); 107#L542-1true test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 7#L552true assume !(0 != test_~tmp___0~0); 8#L552-1true test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 59#L562true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 71#L570-2true assume !(0 != ~pumpRunning~0); 24#L601true assume !(0 != ~systemActive~0); 129#L608true havoc __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 119#L93-2true __utac_acc__Specification2_spec__2_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret78;havoc __utac_acc__Specification2_spec__2_#t~ret78; 26#L835true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 29#L835-1true [2020-12-01 15:18:01,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:01,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-12-01 15:18:01,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:01,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058852977] [2020-12-01 15:18:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:01,924 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:02,043 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:02,110 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:18:02,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:02,112 INFO L82 PathProgramCache]: Analyzing trace with hash 6139405, now seen corresponding path program 1 times [2020-12-01 15:18:02,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:02,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711421478] [2020-12-01 15:18:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:18:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:18:02,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711421478] [2020-12-01 15:18:02,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:18:02,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:18:02,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772522317] [2020-12-01 15:18:02,177 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:18:02,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:18:02,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:18:02,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:18:02,196 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 3 states. [2020-12-01 15:18:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:18:02,248 INFO L93 Difference]: Finished difference Result 136 states and 195 transitions. [2020-12-01 15:18:02,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:18:02,251 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 195 transitions. [2020-12-01 15:18:02,262 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2020-12-01 15:18:02,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 129 states and 187 transitions. [2020-12-01 15:18:02,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2020-12-01 15:18:02,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2020-12-01 15:18:02,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 187 transitions. [2020-12-01 15:18:02,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:18:02,284 INFO L692 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2020-12-01 15:18:02,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states and 187 transitions. [2020-12-01 15:18:02,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-12-01 15:18:02,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-12-01 15:18:02,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 187 transitions. [2020-12-01 15:18:02,323 INFO L715 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2020-12-01 15:18:02,323 INFO L595 BuchiCegarLoop]: Abstraction has 129 states and 187 transitions. [2020-12-01 15:18:02,324 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:18:02,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 187 transitions. [2020-12-01 15:18:02,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2020-12-01 15:18:02,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:18:02,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:18:02,328 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:02,328 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:02,328 INFO L794 eck$LassoCheckResult]: Stem: 404#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 291#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 292#L882 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 313#L890 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 345#L978 assume 0 != main_~tmp~10; 297#L954 ~methAndRunningLastTime~0 := 0; 298#L824 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 331#L835-1 [2020-12-01 15:18:02,329 INFO L796 eck$LassoCheckResult]: Loop: 331#L835-1 assume !false; 288#L533 assume test_~splverifierCounter~0 < 4; 289#L534 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 396#L542 assume !(0 != test_~tmp~3); 400#L542-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 293#L552 assume !(0 != test_~tmp___0~0); 295#L552-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 296#L562 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 367#L570-2 assume !(0 != ~pumpRunning~0); 327#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 307#L659 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 308#L633-1 assume !(0 == ~pumpRunning~0); 312#L608 havoc __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 411#L93-2 __utac_acc__Specification2_spec__2_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret78;havoc __utac_acc__Specification2_spec__2_#t~ret78; 330#L835 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 331#L835-1 [2020-12-01 15:18:02,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:02,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-12-01 15:18:02,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:02,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599907020] [2020-12-01 15:18:02,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:02,397 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:02,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:02,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:18:02,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:02,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1675691818, now seen corresponding path program 1 times [2020-12-01 15:18:02,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:02,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698657942] [2020-12-01 15:18:02,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:18:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:18:02,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698657942] [2020-12-01 15:18:02,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:18:02,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:18:02,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838957737] [2020-12-01 15:18:02,538 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:18:02,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:18:02,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:18:02,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:18:02,539 INFO L87 Difference]: Start difference. First operand 129 states and 187 transitions. cyclomatic complexity: 60 Second operand 3 states. [2020-12-01 15:18:02,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:18:02,701 INFO L93 Difference]: Finished difference Result 173 states and 241 transitions. [2020-12-01 15:18:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:18:02,702 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 241 transitions. [2020-12-01 15:18:02,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2020-12-01 15:18:02,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 173 states and 241 transitions. [2020-12-01 15:18:02,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2020-12-01 15:18:02,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2020-12-01 15:18:02,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 241 transitions. [2020-12-01 15:18:02,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:18:02,727 INFO L692 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2020-12-01 15:18:02,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 241 transitions. [2020-12-01 15:18:02,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2020-12-01 15:18:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-12-01 15:18:02,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 241 transitions. [2020-12-01 15:18:02,754 INFO L715 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2020-12-01 15:18:02,754 INFO L595 BuchiCegarLoop]: Abstraction has 173 states and 241 transitions. [2020-12-01 15:18:02,755 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:18:02,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 241 transitions. [2020-12-01 15:18:02,757 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2020-12-01 15:18:02,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:18:02,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:18:02,760 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:02,760 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:02,760 INFO L794 eck$LassoCheckResult]: Stem: 716#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 598#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 599#L882 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 623#L890 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 652#L978 assume 0 != main_~tmp~10; 604#L954 ~methAndRunningLastTime~0 := 0; 605#L824 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 637#L835-1 [2020-12-01 15:18:02,763 INFO L796 eck$LassoCheckResult]: Loop: 637#L835-1 assume !false; 595#L533 assume test_~splverifierCounter~0 < 4; 596#L534 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 708#L542 assume !(0 != test_~tmp~3); 715#L542-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 600#L552 assume !(0 != test_~tmp___0~0); 602#L552-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 603#L562 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 676#L570-2 assume !(0 != ~pumpRunning~0); 633#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 616#L659 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 617#L633-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 659#L133-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 660#L138-1 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 672#L779-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 693#L779-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 680#L785-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 624#L637-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 620#L608 havoc __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 724#L93-2 __utac_acc__Specification2_spec__2_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret78;havoc __utac_acc__Specification2_spec__2_#t~ret78; 636#L835 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 637#L835-1 [2020-12-01 15:18:02,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:02,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-12-01 15:18:02,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:02,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063284870] [2020-12-01 15:18:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:02,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:02,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:02,959 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:18:02,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:02,960 INFO L82 PathProgramCache]: Analyzing trace with hash 2063430788, now seen corresponding path program 1 times [2020-12-01 15:18:02,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:02,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48248789] [2020-12-01 15:18:02,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:18:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:18:02,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48248789] [2020-12-01 15:18:02,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:18:02,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:18:02,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549845279] [2020-12-01 15:18:02,996 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:18:02,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:18:02,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:18:02,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:18:02,997 INFO L87 Difference]: Start difference. First operand 173 states and 241 transitions. cyclomatic complexity: 70 Second operand 4 states. [2020-12-01 15:18:03,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:18:03,181 INFO L93 Difference]: Finished difference Result 481 states and 661 transitions. [2020-12-01 15:18:03,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:18:03,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 481 states and 661 transitions. [2020-12-01 15:18:03,191 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 338 [2020-12-01 15:18:03,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 481 states to 481 states and 661 transitions. [2020-12-01 15:18:03,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2020-12-01 15:18:03,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2020-12-01 15:18:03,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 661 transitions. [2020-12-01 15:18:03,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:18:03,200 INFO L692 BuchiCegarLoop]: Abstraction has 481 states and 661 transitions. [2020-12-01 15:18:03,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 661 transitions. [2020-12-01 15:18:03,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 185. [2020-12-01 15:18:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-12-01 15:18:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 253 transitions. [2020-12-01 15:18:03,232 INFO L715 BuchiCegarLoop]: Abstraction has 185 states and 253 transitions. [2020-12-01 15:18:03,233 INFO L595 BuchiCegarLoop]: Abstraction has 185 states and 253 transitions. [2020-12-01 15:18:03,233 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:18:03,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 253 transitions. [2020-12-01 15:18:03,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-12-01 15:18:03,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:18:03,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:18:03,238 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:03,239 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:03,239 INFO L794 eck$LassoCheckResult]: Stem: 1393#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 1262#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1263#L882 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1287#L890 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 1320#L978 assume 0 != main_~tmp~10; 1268#L954 ~methAndRunningLastTime~0 := 0; 1269#L824 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1304#L835-1 [2020-12-01 15:18:03,239 INFO L796 eck$LassoCheckResult]: Loop: 1304#L835-1 assume !false; 1417#L533 assume test_~splverifierCounter~0 < 4; 1383#L534 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 1384#L542 assume !(0 != test_~tmp~3); 1392#L542-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 1264#L552 assume !(0 != test_~tmp___0~0); 1266#L552-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 1267#L562 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1346#L570-2 assume !(0 != ~pumpRunning~0); 1297#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1280#L659 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1281#L633-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1329#L133-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1330#L138-1 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 1366#L779-3 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; 1367#L779-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1351#L785-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 1288#L637-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1284#L608 havoc __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1427#L93-2 __utac_acc__Specification2_spec__2_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret78;havoc __utac_acc__Specification2_spec__2_#t~ret78; 1425#L835 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 1304#L835-1 [2020-12-01 15:18:03,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:03,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-12-01 15:18:03,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:03,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165154767] [2020-12-01 15:18:03,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:03,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:03,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:03,364 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:18:03,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:03,365 INFO L82 PathProgramCache]: Analyzing trace with hash -456529146, now seen corresponding path program 1 times [2020-12-01 15:18:03,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:03,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988201524] [2020-12-01 15:18:03,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:18:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:18:03,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988201524] [2020-12-01 15:18:03,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:18:03,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:18:03,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605236272] [2020-12-01 15:18:03,403 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:18:03,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:18:03,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:18:03,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:18:03,404 INFO L87 Difference]: Start difference. First operand 185 states and 253 transitions. cyclomatic complexity: 70 Second operand 5 states. [2020-12-01 15:18:03,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:18:03,560 INFO L93 Difference]: Finished difference Result 545 states and 745 transitions. [2020-12-01 15:18:03,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:18:03,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 545 states and 745 transitions. [2020-12-01 15:18:03,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 388 [2020-12-01 15:18:03,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 545 states to 545 states and 745 transitions. [2020-12-01 15:18:03,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 545 [2020-12-01 15:18:03,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 545 [2020-12-01 15:18:03,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 545 states and 745 transitions. [2020-12-01 15:18:03,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:18:03,574 INFO L692 BuchiCegarLoop]: Abstraction has 545 states and 745 transitions. [2020-12-01 15:18:03,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states and 745 transitions. [2020-12-01 15:18:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 203. [2020-12-01 15:18:03,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-12-01 15:18:03,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 271 transitions. [2020-12-01 15:18:03,599 INFO L715 BuchiCegarLoop]: Abstraction has 203 states and 271 transitions. [2020-12-01 15:18:03,600 INFO L595 BuchiCegarLoop]: Abstraction has 203 states and 271 transitions. [2020-12-01 15:18:03,600 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-12-01 15:18:03,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states and 271 transitions. [2020-12-01 15:18:03,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2020-12-01 15:18:03,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:18:03,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:18:03,603 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:03,604 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:18:03,607 INFO L794 eck$LassoCheckResult]: Stem: 2146#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 2006#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 2007#L882 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2027#L890 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 2058#L978 assume 0 != main_~tmp~10; 2012#L954 ~methAndRunningLastTime~0 := 0; 2013#L824 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2043#L835-1 [2020-12-01 15:18:03,607 INFO L796 eck$LassoCheckResult]: Loop: 2043#L835-1 assume !false; 2003#L533 assume test_~splverifierCounter~0 < 4; 2004#L534 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 2185#L542 assume !(0 != test_~tmp~3); 2182#L542-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 2008#L552 assume !(0 != test_~tmp___0~0); 2010#L552-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 2011#L562 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2091#L570-2 assume !(0 != ~pumpRunning~0); 2038#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2023#L659 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 2024#L633-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2070#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2072#L138-1 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 2086#L779-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2120#L779-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 2097#L785-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 2098#L637-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 2155#L608 havoc __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 2154#L93-2 __utac_acc__Specification2_spec__2_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret78;havoc __utac_acc__Specification2_spec__2_#t~ret78; 2042#L835 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 2043#L835-1 [2020-12-01 15:18:03,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:03,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2020-12-01 15:18:03,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:03,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995681030] [2020-12-01 15:18:03,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:03,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:03,721 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:03,729 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:18:03,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:03,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1383372418, now seen corresponding path program 1 times [2020-12-01 15:18:03,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:03,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480053041] [2020-12-01 15:18:03,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:03,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:03,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:03,754 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:18:03,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:18:03,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1138453252, now seen corresponding path program 1 times [2020-12-01 15:18:03,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:18:03,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731947176] [2020-12-01 15:18:03,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:18:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:03,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:18:03,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:18:03,887 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:18:04,026 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-01 15:19:25,984 WARN L197 SmtUtils]: Spent 1.36 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-12-01 15:20:22,793 WARN L197 SmtUtils]: Spent 56.73 s on a formula simplification that was a NOOP. DAG size: 435 [2020-12-01 15:20:23,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:20:23 BoogieIcfgContainer [2020-12-01 15:20:23,054 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:20:23,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:20:23,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:20:23,055 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:20:23,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:18:01" (3/4) ... [2020-12-01 15:20:23,061 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:20:23,122 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_157d718b-ad9a-4006-82de-bb58f7496079/bin/uautomizer/witness.graphml [2020-12-01 15:20:23,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:20:23,129 INFO L168 Benchmark]: Toolchain (without parser) took 143761.56 ms. Allocated memory was 117.4 MB in the beginning and 197.1 MB in the end (delta: 79.7 MB). Free memory was 85.2 MB in the beginning and 56.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 107.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:23,129 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 79.7 MB. Free memory is still 36.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:20:23,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.33 ms. Allocated memory is still 117.4 MB. Free memory was 85.0 MB in the beginning and 82.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:23,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.27 ms. Allocated memory is still 117.4 MB. Free memory was 82.6 MB in the beginning and 78.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:23,132 INFO L168 Benchmark]: Boogie Preprocessor took 90.77 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 75.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:23,132 INFO L168 Benchmark]: RCFGBuilder took 1302.97 ms. Allocated memory is still 117.4 MB. Free memory was 75.7 MB in the beginning and 67.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:23,133 INFO L168 Benchmark]: BuchiAutomizer took 141621.34 ms. Allocated memory was 117.4 MB in the beginning and 197.1 MB in the end (delta: 79.7 MB). Free memory was 67.1 MB in the beginning and 59.0 MB in the end (delta: 8.1 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:23,133 INFO L168 Benchmark]: Witness Printer took 72.62 ms. Allocated memory is still 197.1 MB. Free memory was 59.0 MB in the beginning and 56.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:23,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 79.7 MB. Free memory is still 36.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 549.33 ms. Allocated memory is still 117.4 MB. Free memory was 85.0 MB in the beginning and 82.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.27 ms. Allocated memory is still 117.4 MB. Free memory was 82.6 MB in the beginning and 78.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.77 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 75.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1302.97 ms. Allocated memory is still 117.4 MB. Free memory was 75.7 MB in the beginning and 67.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 141621.34 ms. Allocated memory was 117.4 MB in the beginning and 197.1 MB in the end (delta: 79.7 MB). Free memory was 67.1 MB in the beginning and 59.0 MB in the end (delta: 8.1 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.1 GB. * Witness Printer took 72.62 ms. Allocated memory is still 197.1 MB. Free memory was 59.0 MB in the beginning and 56.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 203 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 141.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 140.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 638 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 203 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1012 SDtfs, 1300 SDslu, 1168 SDs, 0 SdLazy, 184 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 532]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31770} State at position 1 is {NULL=0, NULL=31791, NULL=0, NULL=0, NULL=31770, NULL=31779, NULL=31787, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42e14515=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@607de36a=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@534dff87=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69b7d2cf=0, tmp=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=0, NULL=31792, NULL=31789, cleanupTimeShifts=4, NULL=31782, NULL=31777, tmp=1, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a54af65=0, NULL=0, NULL=31780, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=0, retValue_acc=1, NULL=0, \result=1, NULL=31797, NULL=0, NULL=31788, NULL=0, tmp=1, NULL=0, methAndRunningLastTime=0, NULL=31783, head=0, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=31784, NULL=31772, NULL=31771, NULL=31774, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1222423a=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=0, systemActive=1, NULL=31794, NULL=0, NULL=31790, \result=0, NULL=0, NULL=31796, NULL=31778, retValue_acc=0, NULL=31793, \result=0, NULL=0, NULL=31795, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b84abaa=0, NULL=31773, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34a9f96d=0, NULL=31775, NULL=31785, tmp___0=0, tmp___2=71, splverifierCounter=0, NULL=0, \result=0, NULL=31786, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a0ce106=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a0632cb=0, NULL=31781, NULL=31776, NULL=0, NULL=31798, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L593] int pumpRunning = 0; [L594] int systemActive = 1; [L818] int methAndRunningLastTime ; [L895] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L886] int retValue_acc ; [L889] retValue_acc = 1 [L890] return (retValue_acc); [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L823] methAndRunningLastTime = 0 [L523] int splverifierCounter ; [L524] int tmp ; [L525] int tmp___0 ; [L526] int tmp___1 ; [L527] int tmp___2 ; [L530] splverifierCounter = 0 Loop: [L532] COND TRUE 1 [L534] COND TRUE splverifierCounter < 4 [L540] tmp = __VERIFIER_nondet_int() [L542] COND FALSE !(\read(tmp)) [L550] tmp___0 = __VERIFIER_nondet_int() [L552] COND FALSE !(\read(tmp___0)) [L560] tmp___2 = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp___2) [L812] systemActive = 1 [L601] COND FALSE !(\read(pumpRunning)) [L608] COND TRUE \read(systemActive) [L656] int tmp ; [L659] COND FALSE !(\read(pumpRunning)) [L630] int tmp ; [L633] COND TRUE ! pumpRunning [L771] int retValue_acc ; [L772] int tmp ; [L773] int tmp___0 ; [L130] int retValue_acc ; [L133] COND TRUE waterLevel < 2 [L134] retValue_acc = 1 [L135] return (retValue_acc); [L777] tmp = isHighWaterSensorDry() [L779] COND TRUE \read(tmp) [L780] tmp___0 = 0 [L784] retValue_acc = tmp___0 [L785] return (retValue_acc); [L635] tmp = isHighWaterLevel() [L637] COND FALSE !(\read(tmp)) [L828] int tmp ; [L829] int tmp___0 ; [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); [L833] tmp = isMethaneLevelCritical() [L835] COND FALSE !(\read(tmp)) [L851] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...