./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/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 8e12a99510f3863baa75b24484dbcccd367dbf9c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:33:07,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:33:07,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:33:07,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:33:07,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:33:07,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:33:07,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:33:07,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:33:07,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:33:07,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:33:07,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:33:07,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:33:07,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:33:07,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:33:07,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:33:07,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:33:07,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:33:07,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:33:07,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:33:07,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:33:07,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:33:07,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:33:07,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:33:07,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:33:07,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:33:07,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:33:07,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:33:07,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:33:07,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:33:07,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:33:07,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:33:07,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:33:07,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:33:07,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:33:07,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:33:07,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:33:07,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:33:07,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:33:07,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:33:07,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:33:07,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:33:07,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:33:07,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:33:07,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:33:07,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:33:07,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:33:07,957 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:33:07,958 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:33:07,958 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:33:07,958 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:33:07,959 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:33:07,959 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:33:07,960 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:33:07,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:33:07,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:33:07,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:33:07,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:33:07,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:33:07,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:33:07,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:33:07,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:33:07,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:33:07,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:33:07,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:33:07,964 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:33:07,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:33:07,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:33:07,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:33:07,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:33:07,965 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:33:07,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:33:07,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:33:07,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:33:07,967 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:33:07,969 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:33:07,969 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_4124df64-9287-440f-b3a7-515c9dcb9b9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e12a99510f3863baa75b24484dbcccd367dbf9c [2020-11-29 20:33:08,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:33:08,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:33:08,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:33:08,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:33:08,430 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:33:08,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2020-11-29 20:33:08,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/data/5809089cf/f81ebd7f44274ecca905e84753f2eeaf/FLAGc6e35412b [2020-11-29 20:33:09,277 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:33:09,278 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2020-11-29 20:33:09,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/data/5809089cf/f81ebd7f44274ecca905e84753f2eeaf/FLAGc6e35412b [2020-11-29 20:33:09,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/data/5809089cf/f81ebd7f44274ecca905e84753f2eeaf [2020-11-29 20:33:09,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:33:09,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:33:09,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:33:09,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:33:09,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:33:09,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:33:09" (1/1) ... [2020-11-29 20:33:09,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520e98a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:09, skipping insertion in model container [2020-11-29 20:33:09,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:33:09" (1/1) ... [2020-11-29 20:33:09,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:33:09,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:33:10,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:33:10,087 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:33:10,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:33:10,300 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:33:10,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10 WrapperNode [2020-11-29 20:33:10,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:33:10,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:33:10,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:33:10,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:33:10,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:33:10,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:33:10,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:33:10,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:33:10,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... [2020-11-29 20:33:10,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:33:10,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:33:10,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:33:10,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:33:10,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:33:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:33:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:33:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:33:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:33:12,511 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:33:12,512 INFO L298 CfgBuilder]: Removed 282 assume(true) statements. [2020-11-29 20:33:12,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:12 BoogieIcfgContainer [2020-11-29 20:33:12,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:33:12,517 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:33:12,517 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:33:12,521 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:33:12,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:33:12,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:33:09" (1/3) ... [2020-11-29 20:33:12,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14540711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:33:12, skipping insertion in model container [2020-11-29 20:33:12,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:33:12,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:10" (2/3) ... [2020-11-29 20:33:12,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14540711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:33:12, skipping insertion in model container [2020-11-29 20:33:12,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:33:12,525 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:12" (3/3) ... [2020-11-29 20:33:12,527 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-11-29 20:33:12,594 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:33:12,595 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:33:12,595 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:33:12,595 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:33:12,595 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:33:12,595 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:33:12,596 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:33:12,596 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:33:12,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2020-11-29 20:33:12,690 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-29 20:33:12,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:33:12,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:33:12,703 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:33:12,703 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:12,703 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:33:12,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2020-11-29 20:33:12,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-29 20:33:12,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:33:12,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:33:12,718 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:33:12,719 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:12,725 INFO L794 eck$LassoCheckResult]: Stem: 144#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 5#L866true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 22#L874true main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 167#L536true assume 0 != main_~tmp~4; 147#L509true havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 54#L53-1true [2020-11-29 20:33:12,727 INFO L796 eck$LassoCheckResult]: Loop: 54#L53-1true assume !false; 140#L790true assume test_~splverifierCounter~0 < 4; 43#L791true test_~tmp~10 := test_#t~nondet67;havoc test_#t~nondet67; 88#L799true assume !(0 != test_~tmp~10); 56#L799-1true test_~tmp___0~3 := test_#t~nondet68;havoc test_#t~nondet68; 142#L809true assume !(0 != test_~tmp___0~3); 146#L809-1true test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 14#L819true assume 0 != test_~tmp___2~0; 171#L825-2true assume !(0 != ~pumpRunning~0); 15#L563true assume !(0 != ~systemActive~0); 135#L570true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 71#L923-1true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 92#L53true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 54#L53-1true [2020-11-29 20:33:12,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:12,736 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 20:33:12,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:12,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787270315] [2020-11-29 20:33:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:13,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:13,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:13,315 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:33:13,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:13,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1676481276, now seen corresponding path program 1 times [2020-11-29 20:33:13,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:13,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635645027] [2020-11-29 20:33:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:13,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:13,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:13,366 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:33:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:13,371 INFO L82 PathProgramCache]: Analyzing trace with hash 37797662, now seen corresponding path program 1 times [2020-11-29 20:33:13,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:13,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351120231] [2020-11-29 20:33:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:33:13,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:13,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351120231] [2020-11-29 20:33:13,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:33:13,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:33:13,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675855780] [2020-11-29 20:33:13,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:33:13,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:33:13,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:33:13,770 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 6 states. [2020-11-29 20:33:14,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:33:14,137 INFO L93 Difference]: Finished difference Result 186 states and 274 transitions. [2020-11-29 20:33:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:33:14,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 274 transitions. [2020-11-29 20:33:14,153 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2020-11-29 20:33:14,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 179 states and 267 transitions. [2020-11-29 20:33:14,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2020-11-29 20:33:14,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2020-11-29 20:33:14,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 267 transitions. [2020-11-29 20:33:14,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:33:14,175 INFO L691 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 20:33:14,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 267 transitions. [2020-11-29 20:33:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-11-29 20:33:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-11-29 20:33:14,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 267 transitions. [2020-11-29 20:33:14,232 INFO L714 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 20:33:14,232 INFO L594 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 20:33:14,233 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:33:14,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 267 transitions. [2020-11-29 20:33:14,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2020-11-29 20:33:14,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:33:14,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:33:14,236 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:33:14,237 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:14,237 INFO L794 eck$LassoCheckResult]: Stem: 557#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 413#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 398#L866 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 399#L874 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 434#L536 assume 0 != main_~tmp~4; 559#L509 havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 478#L53-1 [2020-11-29 20:33:14,237 INFO L796 eck$LassoCheckResult]: Loop: 478#L53-1 assume !false; 479#L790 assume test_~splverifierCounter~0 < 4; 468#L791 test_~tmp~10 := test_#t~nondet67;havoc test_#t~nondet67; 469#L799 assume !(0 != test_~tmp~10); 484#L799-1 test_~tmp___0~3 := test_#t~nondet68;havoc test_#t~nondet68; 485#L809 assume !(0 != test_~tmp___0~3); 394#L809-1 test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 417#L819 assume 0 != test_~tmp___2~0; 418#L825-2 assume !(0 != ~pumpRunning~0); 420#L563 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 421#L647 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret46, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 402#L621-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret45, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 404#L595-3 assume !(0 == ~pumpRunning~0); 401#L570 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 502#L923-1 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 503#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 478#L53-1 [2020-11-29 20:33:14,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:14,238 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 20:33:14,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:14,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500072179] [2020-11-29 20:33:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:14,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:14,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:14,375 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:33:14,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:14,376 INFO L82 PathProgramCache]: Analyzing trace with hash -270276488, now seen corresponding path program 1 times [2020-11-29 20:33:14,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:14,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571792066] [2020-11-29 20:33:14,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:33:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:14,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571792066] [2020-11-29 20:33:14,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:33:14,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:33:14,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339800367] [2020-11-29 20:33:14,402 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:33:14,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:33:14,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:33:14,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:33:14,404 INFO L87 Difference]: Start difference. First operand 179 states and 267 transitions. cyclomatic complexity: 90 Second operand 3 states. [2020-11-29 20:33:14,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:33:14,626 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2020-11-29 20:33:14,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:33:14,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2020-11-29 20:33:14,630 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-29 20:33:14,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2020-11-29 20:33:14,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2020-11-29 20:33:14,641 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2020-11-29 20:33:14,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2020-11-29 20:33:14,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:33:14,645 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 20:33:14,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2020-11-29 20:33:14,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-29 20:33:14,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-29 20:33:14,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2020-11-29 20:33:14,670 INFO L714 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 20:33:14,670 INFO L594 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 20:33:14,670 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:33:14,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 255 transitions. [2020-11-29 20:33:14,675 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-29 20:33:14,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:33:14,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:33:14,680 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:33:14,680 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:14,681 INFO L794 eck$LassoCheckResult]: Stem: 894#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 780#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 767#L866 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 768#L874 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 797#L536 assume 0 != main_~tmp~4; 897#L509 havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 835#L53-1 [2020-11-29 20:33:14,681 INFO L796 eck$LassoCheckResult]: Loop: 835#L53-1 assume !false; 836#L790 assume test_~splverifierCounter~0 < 4; 823#L791 test_~tmp~10 := test_#t~nondet67;havoc test_#t~nondet67; 824#L799 assume !(0 != test_~tmp~10); 837#L799-1 test_~tmp___0~3 := test_#t~nondet68;havoc test_#t~nondet68; 838#L809 assume !(0 != test_~tmp___0~3); 763#L809-1 test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 784#L819 assume 0 != test_~tmp___2~0; 785#L825-2 assume !(0 != ~pumpRunning~0); 787#L563 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 788#L647 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret46, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 772#L621-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret45, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 773#L595-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 882#L963-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 909#L968-3 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 859#L749-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 860#L749-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 851#L755-3 processEnvironment__wrappee__highWaterSensor_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret45;havoc processEnvironment__wrappee__highWaterSensor_#t~ret45; 852#L599-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 771#L570 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 854#L923-1 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 855#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 835#L53-1 [2020-11-29 20:33:14,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:14,682 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 20:33:14,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:14,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432573720] [2020-11-29 20:33:14,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:14,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:14,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:14,872 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:33:14,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:14,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1151634372, now seen corresponding path program 1 times [2020-11-29 20:33:14,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:14,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772236675] [2020-11-29 20:33:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:14,896 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:14,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:14,912 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:33:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:14,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1890027798, now seen corresponding path program 1 times [2020-11-29 20:33:14,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:14,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957061496] [2020-11-29 20:33:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:14,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:15,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:15,062 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:33:15,313 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 20:34:56,793 WARN L193 SmtUtils]: Spent 1.69 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 20:36:07,920 WARN L193 SmtUtils]: Spent 1.19 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 20:36:08,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:36:08 BoogieIcfgContainer [2020-11-29 20:36:08,155 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:36:08,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:36:08,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:36:08,156 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:36:08,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:12" (3/4) ... [2020-11-29 20:36:08,160 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:36:08,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4124df64-9287-440f-b3a7-515c9dcb9b9d/bin/uautomizer/witness.graphml [2020-11-29 20:36:08,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:36:08,228 INFO L168 Benchmark]: Toolchain (without parser) took 178701.17 ms. Allocated memory was 104.9 MB in the beginning and 163.6 MB in the end (delta: 58.7 MB). Free memory was 76.5 MB in the beginning and 125.5 MB in the end (delta: -49.0 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:08,229 INFO L168 Benchmark]: CDTParser took 1.75 ms. Allocated memory is still 104.9 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:36:08,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.34 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 70.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:08,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 162.39 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 66.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:08,231 INFO L168 Benchmark]: Boogie Preprocessor took 115.26 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 62.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:08,232 INFO L168 Benchmark]: RCFGBuilder took 1932.31 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 62.4 MB in the beginning and 89.3 MB in the end (delta: -26.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:08,232 INFO L168 Benchmark]: BuchiAutomizer took 175638.02 ms. Allocated memory was 134.2 MB in the beginning and 163.6 MB in the end (delta: 29.4 MB). Free memory was 88.5 MB in the beginning and 128.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 77.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:08,233 INFO L168 Benchmark]: Witness Printer took 70.82 ms. Allocated memory is still 163.6 MB. Free memory was 128.5 MB in the beginning and 125.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:08,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.75 ms. Allocated memory is still 104.9 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 772.34 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 70.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 162.39 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 66.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.26 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 62.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1932.31 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 62.4 MB in the beginning and 89.3 MB in the end (delta: -26.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 175638.02 ms. Allocated memory was 134.2 MB in the beginning and 163.6 MB in the end (delta: 29.4 MB). Free memory was 88.5 MB in the beginning and 128.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 77.8 MB. Max. memory is 16.1 GB. * Witness Printer took 70.82 ms. Allocated memory is still 163.6 MB. Free memory was 128.5 MB in the beginning and 125.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 184 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 175.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 174.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 184 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 461 SDtfs, 947 SDslu, 77 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 789]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=19144} State at position 1 is {NULL=0, NULL=0, NULL=19144, NULL=0, NULL=0, NULL=19162, NULL=0, NULL=19165, methaneLevelCritical=0, tmp___1=0, NULL=19152, retValue_acc=0, NULL=0, NULL=19149, NULL=19147, cleanupTimeShifts=4, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31cdc74a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19d2c2d4=0, waterLevel=1, NULL=0, NULL=0, NULL=19168, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a1a9680=0, NULL=19164, \result=1, head=0, pumpRunning=0, tmp=1, NULL=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=19167, NULL=0, tmp___0=0, tmp=1, NULL=0, NULL=19154, NULL=19166, head=0, NULL=0, NULL=19156, NULL=19151, tmp=0, NULL=0, NULL=0, NULL=0, NULL=19161, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e5fe4ff=0, NULL=0, NULL=0, retValue_acc=0, NULL=19148, NULL=19172, NULL=19145, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17065dce=0, tmp___0=0, NULL=19159, tmp=0, NULL=0, tmp___0=0, NULL=19157, NULL=19171, NULL=19146, tmp=0, NULL=0, NULL=0, systemActive=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25e1fc9d=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=19158, \result=0, NULL=19160, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@562b5166=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28eaff7d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a76ceb3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e44c507=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52687a2=0, NULL=19163, NULL=19153, tmp=0, retValue_acc=1, tmp___2=69, splverifierCounter=0, NULL=0, \result=0, NULL=19155, NULL=19170, NULL=19150, NULL=19169} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; [L527] int retValue_acc ; [L528] int tmp ; [L870] int retValue_acc ; [L873] retValue_acc = 1 [L874] return (retValue_acc); [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 Loop: [L789] COND TRUE 1 [L791] COND TRUE splverifierCounter < 4 [L797] tmp = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp)) [L807] tmp___0 = __VERIFIER_nondet_int() [L809] COND FALSE !(\read(tmp___0)) [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___2) [L563] COND FALSE !(\read(pumpRunning)) [L570] COND TRUE \read(systemActive) [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L618] int tmp ; [L621] COND FALSE !(\read(pumpRunning)) [L592] int tmp ; [L595] COND TRUE ! pumpRunning [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L960] int retValue_acc ; [L963] COND TRUE waterLevel < 2 [L964] retValue_acc = 1 [L965] return (retValue_acc); [L747] tmp = isHighWaterSensorDry() [L749] COND TRUE \read(tmp) [L750] tmp___0 = 0 [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); [L597] tmp = isHighWaterLevel() [L599] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...