./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.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_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/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 c5548a4f9ab372783c382dbed65951e6f378a572 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:57:06,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:57:06,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:57:06,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:57:06,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:57:06,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:57:06,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:57:06,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:57:06,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:57:06,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:57:06,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:57:06,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:57:06,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:57:06,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:57:06,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:57:06,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:57:06,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:57:06,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:57:06,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:57:06,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:57:06,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:57:06,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:57:06,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:57:06,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:57:06,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:57:06,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:57:06,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:57:06,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:57:06,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:57:06,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:57:06,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:57:06,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:57:06,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:57:06,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:57:06,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:57:06,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:57:06,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:57:06,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:57:06,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:57:06,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:57:06,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:57:06,891 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:57:06,917 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:57:06,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:57:06,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:57:06,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:57:06,919 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:57:06,919 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:57:06,920 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:57:06,920 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:57:06,920 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:57:06,920 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:57:06,921 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:57:06,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:57:06,921 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:57:06,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:57:06,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:57:06,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:57:06,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:57:06,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:57:06,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:57:06,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:57:06,923 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:57:06,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:57:06,923 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:57:06,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:57:06,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:57:06,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:57:06,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:57:06,926 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:57:06,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:57:06,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:57:06,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:57:06,927 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:57:06,930 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:57:06,931 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_be61379b-76f1-4dd5-b865-007aa305465d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5548a4f9ab372783c382dbed65951e6f378a572 [2020-12-01 15:57:07,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:57:07,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:57:07,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:57:07,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:57:07,215 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:57:07,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2020-12-01 15:57:07,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/data/dfaf5f20d/47bf31d0deb245709c2fb4833006f233/FLAG9c8436e18 [2020-12-01 15:57:07,818 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:57:07,818 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2020-12-01 15:57:07,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/data/dfaf5f20d/47bf31d0deb245709c2fb4833006f233/FLAG9c8436e18 [2020-12-01 15:57:08,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/data/dfaf5f20d/47bf31d0deb245709c2fb4833006f233 [2020-12-01 15:57:08,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:57:08,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:57:08,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:57:08,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:57:08,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:57:08,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:08,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1814d09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08, skipping insertion in model container [2020-12-01 15:57:08,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:08,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:57:08,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:57:08,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:57:08,735 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:57:08,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:57:08,881 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:57:08,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08 WrapperNode [2020-12-01 15:57:08,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:57:08,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:57:08,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:57:08,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:57:08,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:08,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:08,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:57:08,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:57:08,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:57:08,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:57:08,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:08,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:08,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:08,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:09,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:09,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:09,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... [2020-12-01 15:57:09,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:57:09,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:57:09,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:57:09,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:57:09,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/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 15:57:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:57:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:57:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:57:09,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:57:10,482 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:57:10,485 INFO L298 CfgBuilder]: Removed 180 assume(true) statements. [2020-12-01 15:57:10,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:57:10 BoogieIcfgContainer [2020-12-01 15:57:10,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:57:10,490 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:57:10,490 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:57:10,494 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:57:10,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:57:10,495 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:57:08" (1/3) ... [2020-12-01 15:57:10,497 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50880b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:57:10, skipping insertion in model container [2020-12-01 15:57:10,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:57:10,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:57:08" (2/3) ... [2020-12-01 15:57:10,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50880b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:57:10, skipping insertion in model container [2020-12-01 15:57:10,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:57:10,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:57:10" (3/3) ... [2020-12-01 15:57:10,502 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2020-12-01 15:57:10,575 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:57:10,576 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:57:10,576 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:57:10,576 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:57:10,576 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:57:10,576 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:57:10,577 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:57:10,577 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:57:10,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2020-12-01 15:57:10,629 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-12-01 15:57:10,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:57:10,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:57:10,640 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:10,641 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:10,641 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:57:10,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2020-12-01 15:57:10,652 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-12-01 15:57:10,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:57:10,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:57:10,654 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:10,654 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:10,660 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~4, main_~tmp~4;havoc main_~retValue_acc~4;havoc main_~tmp~4; 53#L463true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 54#L471true main_#t~ret28 := valid_product_#res;main_~tmp~4 := main_#t~ret28;havoc main_#t~ret28; 98#L360true assume 0 != main_~tmp~4; 41#L331true ~switchedOnBeforeTS~0 := 0; 55#L961true havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 116#L982-1true [2020-12-01 15:57:10,661 INFO L796 eck$LassoCheckResult]: Loop: 116#L982-1true assume !false; 89#L385true assume test_~splverifierCounter~0 < 4; 35#L386true test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 58#L394true assume !(0 != test_~tmp~5); 48#L394-1true test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 92#L404true assume !(0 != test_~tmp___0~2); 96#L404-1true test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 21#L414true assume 0 != test_~tmp___2~0; 5#L420-1true havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 69#L176true __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 115#L971true assume !(0 != ~pumpRunning~0); 13#L65true assume !(0 != ~systemActive~0); 42#L72true havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 18#L918true __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 114#L982true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 116#L982-1true [2020-12-01 15:57:10,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:10,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-12-01 15:57:10,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:10,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101276678] [2020-12-01 15:57:10,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:11,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:11,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:11,267 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:11,273 INFO L82 PathProgramCache]: Analyzing trace with hash -240044841, now seen corresponding path program 1 times [2020-12-01 15:57:11,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:11,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756171245] [2020-12-01 15:57:11,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:11,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:11,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:11,320 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:11,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:11,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1693980369, now seen corresponding path program 1 times [2020-12-01 15:57:11,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:11,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330577417] [2020-12-01 15:57:11,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:11,561 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 15:57:11,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330577417] [2020-12-01 15:57:11,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:57:11,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:57:11,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157110934] [2020-12-01 15:57:11,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:57:11,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:57:11,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:57:11,776 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 6 states. [2020-12-01 15:57:12,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:57:12,190 INFO L93 Difference]: Finished difference Result 301 states and 430 transitions. [2020-12-01 15:57:12,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:57:12,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 301 states and 430 transitions. [2020-12-01 15:57:12,207 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 195 [2020-12-01 15:57:12,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 301 states to 280 states and 409 transitions. [2020-12-01 15:57:12,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 280 [2020-12-01 15:57:12,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 280 [2020-12-01 15:57:12,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 280 states and 409 transitions. [2020-12-01 15:57:12,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:57:12,231 INFO L692 BuchiCegarLoop]: Abstraction has 280 states and 409 transitions. [2020-12-01 15:57:12,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states and 409 transitions. [2020-12-01 15:57:12,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 167. [2020-12-01 15:57:12,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-01 15:57:12,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 242 transitions. [2020-12-01 15:57:12,315 INFO L715 BuchiCegarLoop]: Abstraction has 167 states and 242 transitions. [2020-12-01 15:57:12,315 INFO L595 BuchiCegarLoop]: Abstraction has 167 states and 242 transitions. [2020-12-01 15:57:12,315 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:57:12,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 242 transitions. [2020-12-01 15:57:12,323 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 116 [2020-12-01 15:57:12,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:57:12,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:57:12,331 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:12,332 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:12,332 INFO L794 eck$LassoCheckResult]: Stem: 536#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 458#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~4, main_~tmp~4;havoc main_~retValue_acc~4;havoc main_~tmp~4; 459#L463 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 519#L471 main_#t~ret28 := valid_product_#res;main_~tmp~4 := main_#t~ret28;havoc main_#t~ret28; 520#L360 assume 0 != main_~tmp~4; 505#L331 ~switchedOnBeforeTS~0 := 0; 506#L961 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 469#L982-1 [2020-12-01 15:57:12,334 INFO L796 eck$LassoCheckResult]: Loop: 469#L982-1 assume !false; 554#L385 assume test_~splverifierCounter~0 < 4; 499#L386 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 500#L394 assume !(0 != test_~tmp~5); 512#L394-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 513#L404 assume !(0 != test_~tmp___0~2); 515#L404-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 479#L414 assume 0 != test_~tmp___2~0; 449#L420-1 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 452#L176 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 527#L971 assume !(0 != ~pumpRunning~0); 466#L65 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 467#L123 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 516#L97-1 assume !(0 == ~pumpRunning~0); 507#L72 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 474#L918 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 475#L982 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 469#L982-1 [2020-12-01 15:57:12,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:12,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-12-01 15:57:12,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:12,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019234235] [2020-12-01 15:57:12,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:12,420 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:12,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:12,555 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:12,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:12,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1395551211, now seen corresponding path program 1 times [2020-12-01 15:57:12,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:12,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637197751] [2020-12-01 15:57:12,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:12,590 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 15:57:12,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637197751] [2020-12-01 15:57:12,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:57:12,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:57:12,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63166776] [2020-12-01 15:57:12,597 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:57:12,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:57:12,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:57:12,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:57:12,600 INFO L87 Difference]: Start difference. First operand 167 states and 242 transitions. cyclomatic complexity: 78 Second operand 3 states. [2020-12-01 15:57:12,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:57:12,751 INFO L93 Difference]: Finished difference Result 214 states and 293 transitions. [2020-12-01 15:57:12,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:57:12,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 293 transitions. [2020-12-01 15:57:12,758 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2020-12-01 15:57:12,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 214 states and 293 transitions. [2020-12-01 15:57:12,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 214 [2020-12-01 15:57:12,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 214 [2020-12-01 15:57:12,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 214 states and 293 transitions. [2020-12-01 15:57:12,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:57:12,776 INFO L692 BuchiCegarLoop]: Abstraction has 214 states and 293 transitions. [2020-12-01 15:57:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states and 293 transitions. [2020-12-01 15:57:12,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-12-01 15:57:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-01 15:57:12,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 293 transitions. [2020-12-01 15:57:12,791 INFO L715 BuchiCegarLoop]: Abstraction has 214 states and 293 transitions. [2020-12-01 15:57:12,791 INFO L595 BuchiCegarLoop]: Abstraction has 214 states and 293 transitions. [2020-12-01 15:57:12,791 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:57:12,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 214 states and 293 transitions. [2020-12-01 15:57:12,797 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2020-12-01 15:57:12,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:57:12,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:57:12,799 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:12,800 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, 1, 1] [2020-12-01 15:57:12,800 INFO L794 eck$LassoCheckResult]: Stem: 931#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 845#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~4, main_~tmp~4;havoc main_~retValue_acc~4;havoc main_~tmp~4; 846#L463 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 914#L471 main_#t~ret28 := valid_product_#res;main_~tmp~4 := main_#t~ret28;havoc main_#t~ret28; 915#L360 assume 0 != main_~tmp~4; 898#L331 ~switchedOnBeforeTS~0 := 0; 899#L961 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 856#L982-1 [2020-12-01 15:57:12,801 INFO L796 eck$LassoCheckResult]: Loop: 856#L982-1 assume !false; 949#L385 assume test_~splverifierCounter~0 < 4; 890#L386 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 891#L394 assume !(0 != test_~tmp~5); 906#L394-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 907#L404 assume !(0 != test_~tmp___0~2); 909#L404-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 868#L414 assume 0 != test_~tmp___2~0; 836#L420-1 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 839#L176 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 922#L971 assume !(0 != ~pumpRunning~0); 853#L65 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 854#L123 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 910#L97-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 871#L926-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 872#L931-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 892#L225-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 946#L225-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 925#L231-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 926#L101-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 900#L72 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 862#L918 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 863#L982 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 856#L982-1 [2020-12-01 15:57:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-12-01 15:57:12,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:12,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611336690] [2020-12-01 15:57:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:12,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:12,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:12,987 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:12,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1667768607, now seen corresponding path program 1 times [2020-12-01 15:57:12,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:12,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428569094] [2020-12-01 15:57:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:13,025 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 15:57:13,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428569094] [2020-12-01 15:57:13,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:57:13,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:57:13,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165951450] [2020-12-01 15:57:13,027 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:57:13,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:57:13,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:57:13,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:57:13,028 INFO L87 Difference]: Start difference. First operand 214 states and 293 transitions. cyclomatic complexity: 82 Second operand 5 states. [2020-12-01 15:57:13,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:57:13,263 INFO L93 Difference]: Finished difference Result 576 states and 773 transitions. [2020-12-01 15:57:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:57:13,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 576 states and 773 transitions. [2020-12-01 15:57:13,272 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 385 [2020-12-01 15:57:13,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 576 states to 576 states and 773 transitions. [2020-12-01 15:57:13,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 576 [2020-12-01 15:57:13,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 576 [2020-12-01 15:57:13,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 576 states and 773 transitions. [2020-12-01 15:57:13,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:57:13,285 INFO L692 BuchiCegarLoop]: Abstraction has 576 states and 773 transitions. [2020-12-01 15:57:13,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states and 773 transitions. [2020-12-01 15:57:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 421. [2020-12-01 15:57:13,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-12-01 15:57:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 561 transitions. [2020-12-01 15:57:13,328 INFO L715 BuchiCegarLoop]: Abstraction has 421 states and 561 transitions. [2020-12-01 15:57:13,328 INFO L595 BuchiCegarLoop]: Abstraction has 421 states and 561 transitions. [2020-12-01 15:57:13,328 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:57:13,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 421 states and 561 transitions. [2020-12-01 15:57:13,332 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 304 [2020-12-01 15:57:13,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:57:13,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:57:13,333 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:13,333 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, 1, 1, 1, 1] [2020-12-01 15:57:13,334 INFO L794 eck$LassoCheckResult]: Stem: 1743#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 1652#L-1 havoc main_#res;havoc main_#t~ret28, main_~retValue_acc~4, main_~tmp~4;havoc main_~retValue_acc~4;havoc main_~tmp~4; 1653#L463 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1724#L471 main_#t~ret28 := valid_product_#res;main_~tmp~4 := main_#t~ret28;havoc main_#t~ret28; 1725#L360 assume 0 != main_~tmp~4; 1707#L331 ~switchedOnBeforeTS~0 := 0; 1708#L961 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1663#L982-1 [2020-12-01 15:57:13,334 INFO L796 eck$LassoCheckResult]: Loop: 1663#L982-1 assume !false; 1762#L385 assume test_~splverifierCounter~0 < 4; 1763#L386 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 2036#L394 assume !(0 != test_~tmp~5); 2037#L394-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 2044#L404 assume !(0 != test_~tmp___0~2); 2041#L404-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 2039#L414 assume 0 != test_~tmp___2~0; 1645#L420-1 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1646#L176 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 1734#L971 assume !(0 != ~pumpRunning~0); 1660#L65 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1661#L123 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1720#L97-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1678#L926-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1679#L931-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 1901#L225-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1900#L225-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1899#L231-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1785#L101-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1709#L72 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1669#L918 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 1670#L982 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1731#L176-1 __utac_acc__Specification5_spec__3_#t~ret81 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 1723#L986 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1663#L982-1 [2020-12-01 15:57:13,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:13,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-12-01 15:57:13,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:13,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423825946] [2020-12-01 15:57:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:13,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:13,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:13,415 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:13,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:13,416 INFO L82 PathProgramCache]: Analyzing trace with hash -702843716, now seen corresponding path program 1 times [2020-12-01 15:57:13,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:13,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298656514] [2020-12-01 15:57:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:13,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:13,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:13,450 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:13,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:13,451 INFO L82 PathProgramCache]: Analyzing trace with hash -766269898, now seen corresponding path program 1 times [2020-12-01 15:57:13,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:13,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260325729] [2020-12-01 15:57:13,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:13,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:13,548 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:13,570 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:13,757 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-12-01 15:58:41,753 WARN L197 SmtUtils]: Spent 1.47 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-12-01 15:59:48,574 WARN L197 SmtUtils]: Spent 1.11 m on a formula simplification that was a NOOP. DAG size: 435 [2020-12-01 15:59:48,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:59:48 BoogieIcfgContainer [2020-12-01 15:59:48,976 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:59:48,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:59:48,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:59:48,977 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:59:48,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:57:10" (3/4) ... [2020-12-01 15:59:48,982 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:59:49,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_be61379b-76f1-4dd5-b865-007aa305465d/bin/uautomizer/witness.graphml [2020-12-01 15:59:49,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:59:49,048 INFO L168 Benchmark]: Toolchain (without parser) took 160905.70 ms. Allocated memory was 81.8 MB in the beginning and 151.0 MB in the end (delta: 69.2 MB). Free memory was 59.5 MB in the beginning and 49.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 78.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:49,048 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 60.0 MB in the end (delta: 36.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:59:49,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.61 ms. Allocated memory is still 81.8 MB. Free memory was 59.3 MB in the beginning and 47.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:49,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.59 ms. Allocated memory is still 81.8 MB. Free memory was 47.3 MB in the beginning and 43.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:49,050 INFO L168 Benchmark]: Boogie Preprocessor took 56.72 ms. Allocated memory is still 81.8 MB. Free memory was 43.5 MB in the beginning and 40.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:49,050 INFO L168 Benchmark]: RCFGBuilder took 1454.28 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 40.9 MB in the beginning and 51.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:49,051 INFO L168 Benchmark]: BuchiAutomizer took 158486.49 ms. Allocated memory was 98.6 MB in the beginning and 151.0 MB in the end (delta: 52.4 MB). Free memory was 51.1 MB in the beginning and 52.2 MB in the end (delta: -1.1 MB). Peak memory consumption was 75.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:49,051 INFO L168 Benchmark]: Witness Printer took 70.20 ms. Allocated memory is still 151.0 MB. Free memory was 52.2 MB in the beginning and 49.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:49,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 60.0 MB in the end (delta: 36.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 738.61 ms. Allocated memory is still 81.8 MB. Free memory was 59.3 MB in the beginning and 47.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.59 ms. Allocated memory is still 81.8 MB. Free memory was 47.3 MB in the beginning and 43.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.72 ms. Allocated memory is still 81.8 MB. Free memory was 43.5 MB in the beginning and 40.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1454.28 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 40.9 MB in the beginning and 51.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 158486.49 ms. Allocated memory was 98.6 MB in the beginning and 151.0 MB in the end (delta: 52.4 MB). Free memory was 51.1 MB in the beginning and 52.2 MB in the end (delta: -1.1 MB). Peak memory consumption was 75.6 MB. Max. memory is 16.1 GB. * Witness Printer took 70.20 ms. Allocated memory is still 151.0 MB. Free memory was 52.2 MB in the beginning and 49.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 421 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 158.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 157.1s. Construction of modules took 0.5s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 268 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 421 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 610 SDtfs, 1365 SDslu, 1461 SDs, 0 SdLazy, 177 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 384]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {retValue_acc=1, NULL=0, NULL=0, NULL=13770, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60948e5b=0, NULL=13763, NULL=13771, methaneLevelCritical=0, tmp=0, retValue_acc=0, tmp___1=0, NULL=13758, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6402075a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ae57ef5=0, cleanupTimeShifts=4, NULL=13755, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c87c5e1=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ad00c7=0, head=0, pumpRunning=0, NULL=13778, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cf719ad=0, NULL=13766, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60965f8e=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@671e47ac=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@207fe3ba=0, NULL=0, NULL=13757, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@290bc04a=0, NULL=0, tmp___0=0, NULL=13762, tmp=0, head=0, NULL=13765, NULL=13777, NULL=13780, NULL=0, retValue_acc=0, NULL=0, NULL=13768, NULL=13773, NULL=13769, tmp=1, tmp___0=0, NULL=0, NULL=13764, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@529b1b44=0, switchedOnBeforeTS=0, NULL=13759, \result=0, NULL=13775, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=10063, \result=0, NULL=13761, tmp___0=0, NULL=13760, NULL=0, NULL=13776, NULL=0, NULL=0, retValue_acc=1, NULL=13767, retValue_acc=1, tmp___2=55, splverifierCounter=0, NULL=0, NULL=13754, NULL=13779, retValue_acc=0, NULL=13756, NULL=0, NULL=0, NULL=13774, NULL=13772} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L270] int cleanupTimeShifts = 4; [L645] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L955] int switchedOnBeforeTS ; [L351] int retValue_acc ; [L352] int tmp ; [L467] int retValue_acc ; [L470] retValue_acc = 1 [L471] return (retValue_acc); [L358] tmp = valid_product() [L360] COND TRUE \read(tmp) [L960] switchedOnBeforeTS = 0 [L375] int splverifierCounter ; [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; [L379] int tmp___2 ; [L382] splverifierCounter = 0 Loop: [L384] COND TRUE 1 [L386] COND TRUE splverifierCounter < 4 [L392] tmp = __VERIFIER_nondet_int() [L394] COND FALSE !(\read(tmp)) [L402] tmp___0 = __VERIFIER_nondet_int() [L404] COND FALSE !(\read(tmp___0)) [L412] tmp___2 = __VERIFIER_nondet_int() [L414] COND TRUE \read(tmp___2) [L172] int retValue_acc ; [L175] retValue_acc = pumpRunning [L176] return (retValue_acc); [L969] switchedOnBeforeTS = isPumpRunning() [L65] COND FALSE !(\read(pumpRunning)) [L72] COND TRUE \read(systemActive) [L120] int tmp ; [L123] COND FALSE !(\read(pumpRunning)) [L94] int tmp ; [L97] COND TRUE ! pumpRunning [L217] int retValue_acc ; [L218] int tmp ; [L219] int tmp___0 ; [L923] int retValue_acc ; [L926] COND TRUE waterLevel < 2 [L927] retValue_acc = 1 [L928] return (retValue_acc); [L223] tmp = isHighWaterSensorDry() [L225] COND TRUE \read(tmp) [L226] tmp___0 = 0 [L230] retValue_acc = tmp___0 [L231] return (retValue_acc); [L99] tmp = isHighWaterLevel() [L101] COND FALSE !(\read(tmp)) [L975] int tmp ; [L976] int tmp___0 ; [L914] int retValue_acc ; [L917] retValue_acc = waterLevel [L918] return (retValue_acc); [L980] tmp = getWaterLevel() [L982] COND TRUE tmp != 2 [L172] int retValue_acc ; [L175] retValue_acc = pumpRunning [L176] return (retValue_acc); [L984] tmp___0 = isPumpRunning() [L986] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...