./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product16.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_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/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 09f621cb1974882ea9a195d7c88f0bd8b41755c2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:33:03,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:33:03,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:33:03,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:33:03,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:33:03,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:33:03,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:33:03,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:33:03,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:33:03,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:33:03,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:33:03,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:33:03,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:33:03,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:33:03,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:33:03,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:33:03,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:33:03,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:33:03,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:33:03,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:33:03,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:33:03,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:33:03,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:33:03,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:33:03,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:33:03,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:33:03,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:33:03,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:33:03,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:33:03,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:33:03,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:33:03,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:33:03,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:33:03,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:33:03,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:33:03,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:33:03,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:33:03,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:33:03,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:33:03,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:33:03,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:33:03,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:33:03,937 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:33:03,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:33:03,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:33:03,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:33:03,940 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:33:03,940 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:33:03,941 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:33:03,941 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:33:03,943 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:33:03,943 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:33:03,943 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:33:03,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:33:03,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:33:03,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:33:03,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:33:03,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:33:03,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:33:03,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:33:03,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:33:03,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:33:03,947 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:33:03,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:33:03,948 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:33:03,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:33:03,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:33:03,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:33:03,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:33:03,950 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:33:03,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:33:03,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:33:03,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:33:03,953 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:33:03,954 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:33:03,955 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_b27aadef-5c58-4970-87b4-b6f1724d5c8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09f621cb1974882ea9a195d7c88f0bd8b41755c2 [2020-11-29 19:33:04,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:33:04,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:33:04,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:33:04,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:33:04,384 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:33:04,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2020-11-29 19:33:04,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/data/6854ad88e/85cc8da06dbb491c94f776f25f3ff455/FLAGee9e0ae3c [2020-11-29 19:33:05,305 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:33:05,306 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2020-11-29 19:33:05,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/data/6854ad88e/85cc8da06dbb491c94f776f25f3ff455/FLAGee9e0ae3c [2020-11-29 19:33:05,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/data/6854ad88e/85cc8da06dbb491c94f776f25f3ff455 [2020-11-29 19:33:05,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:33:05,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:33:05,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:05,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:33:05,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:33:05,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:05" (1/1) ... [2020-11-29 19:33:05,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de717f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:05, skipping insertion in model container [2020-11-29 19:33:05,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:05" (1/1) ... [2020-11-29 19:33:05,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:33:05,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:33:06,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:06,071 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:33:06,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:06,202 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:33:06,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06 WrapperNode [2020-11-29 19:33:06,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:06,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:06,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:33:06,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:33:06,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:06,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:33:06,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:33:06,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:33:06,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... [2020-11-29 19:33:06,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:33:06,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:33:06,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:33:06,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:33:06,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:33:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:33:06,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:33:06,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:33:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:33:07,683 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:33:07,689 INFO L298 CfgBuilder]: Removed 114 assume(true) statements. [2020-11-29 19:33:07,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:07 BoogieIcfgContainer [2020-11-29 19:33:07,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:33:07,694 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:33:07,694 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:33:07,699 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:33:07,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:33:07,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:33:05" (1/3) ... [2020-11-29 19:33:07,702 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ff0541e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:33:07, skipping insertion in model container [2020-11-29 19:33:07,702 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:33:07,703 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:06" (2/3) ... [2020-11-29 19:33:07,704 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ff0541e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:33:07, skipping insertion in model container [2020-11-29 19:33:07,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:33:07,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:07" (3/3) ... [2020-11-29 19:33:07,708 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-11-29 19:33:07,798 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:33:07,799 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:33:07,799 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:33:07,799 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:33:07,799 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:33:07,799 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:33:07,799 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:33:07,800 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:33:07,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-29 19:33:07,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 19:33:07,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:33:07,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:33:07,864 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:33:07,864 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:07,864 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:33:07,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-29 19:33:07,872 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 19:33:07,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:33:07,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:33:07,874 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:33:07,874 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:07,881 INFO L794 eck$LassoCheckResult]: Stem: 25#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 32#L794true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 35#L802true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 71#L141true assume 0 != main_~tmp~0; 20#L114true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 14#L903-1true [2020-11-29 19:33:07,882 INFO L796 eck$LassoCheckResult]: Loop: 14#L903-1true assume !false; 21#L534true assume test_~splverifierCounter~0 < 4; 36#L535true test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 61#L543true assume !(0 != test_~tmp~4); 39#L543-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 24#L553true assume !(0 != test_~tmp___0~0); 26#L553-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 8#L563true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 34#L571-1true assume !(0 != ~pumpRunning~0); 62#L606true assume !(0 != ~systemActive~0); 76#L613true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 66#L851-1true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 37#L897true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 14#L903-1true [2020-11-29 19:33:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:07,890 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:33:07,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:07,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573706613] [2020-11-29 19:33:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:08,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:08,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:08,568 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:33:08,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:08,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1672356225, now seen corresponding path program 1 times [2020-11-29 19:33:08,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:08,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727416325] [2020-11-29 19:33:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:08,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:33:08,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727416325] [2020-11-29 19:33:08,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:08,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:33:08,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367442223] [2020-11-29 19:33:08,641 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:33:08,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:33:08,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:33:08,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:33:08,665 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2020-11-29 19:33:08,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:08,757 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2020-11-29 19:33:08,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:33:08,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2020-11-29 19:33:08,779 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2020-11-29 19:33:08,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2020-11-29 19:33:08,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2020-11-29 19:33:08,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2020-11-29 19:33:08,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2020-11-29 19:33:08,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:33:08,802 INFO L691 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2020-11-29 19:33:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2020-11-29 19:33:08,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2020-11-29 19:33:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-29 19:33:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2020-11-29 19:33:08,868 INFO L714 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2020-11-29 19:33:08,868 INFO L594 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2020-11-29 19:33:08,869 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:33:08,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2020-11-29 19:33:08,879 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2020-11-29 19:33:08,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:33:08,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:33:08,880 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:33:08,881 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:08,882 INFO L794 eck$LassoCheckResult]: Stem: 259#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 233#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 234#L794 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 265#L802 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 271#L141 assume 0 != main_~tmp~0; 250#L114 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 251#L903-1 [2020-11-29 19:33:08,883 INFO L796 eck$LassoCheckResult]: Loop: 251#L903-1 assume !false; 341#L534 assume test_~splverifierCounter~0 < 4; 272#L535 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 273#L543 assume !(0 != test_~tmp~4); 247#L543-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 256#L553 assume !(0 != test_~tmp___0~0); 257#L553-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 236#L563 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 237#L571-1 assume !(0 != ~pumpRunning~0); 307#L606 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 308#L638 assume !(0 != ~pumpRunning~0); 317#L613 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 318#L851-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 343#L897 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 251#L903-1 [2020-11-29 19:33:08,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:33:08,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:08,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931464478] [2020-11-29 19:33:08,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:09,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:09,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:09,202 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:33:09,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:09,203 INFO L82 PathProgramCache]: Analyzing trace with hash -323963314, now seen corresponding path program 1 times [2020-11-29 19:33:09,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:09,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817912030] [2020-11-29 19:33:09,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:09,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:09,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:09,232 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:33:09,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:09,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1279076212, now seen corresponding path program 1 times [2020-11-29 19:33:09,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:09,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137970174] [2020-11-29 19:33:09,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:33:09,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137970174] [2020-11-29 19:33:09,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:09,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:33:09,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947738650] [2020-11-29 19:33:09,519 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-29 19:33:09,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:33:09,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:33:09,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:33:09,626 INFO L87 Difference]: Start difference. First operand 126 states and 180 transitions. cyclomatic complexity: 57 Second operand 5 states. [2020-11-29 19:33:09,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:09,954 INFO L93 Difference]: Finished difference Result 410 states and 598 transitions. [2020-11-29 19:33:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 19:33:09,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 410 states and 598 transitions. [2020-11-29 19:33:09,963 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 302 [2020-11-29 19:33:09,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 410 states to 410 states and 598 transitions. [2020-11-29 19:33:09,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 410 [2020-11-29 19:33:09,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 410 [2020-11-29 19:33:09,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 410 states and 598 transitions. [2020-11-29 19:33:09,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:33:09,975 INFO L691 BuchiCegarLoop]: Abstraction has 410 states and 598 transitions. [2020-11-29 19:33:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states and 598 transitions. [2020-11-29 19:33:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 246. [2020-11-29 19:33:10,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-11-29 19:33:10,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 346 transitions. [2020-11-29 19:33:10,008 INFO L714 BuchiCegarLoop]: Abstraction has 246 states and 346 transitions. [2020-11-29 19:33:10,008 INFO L594 BuchiCegarLoop]: Abstraction has 246 states and 346 transitions. [2020-11-29 19:33:10,008 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:33:10,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 346 transitions. [2020-11-29 19:33:10,011 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 176 [2020-11-29 19:33:10,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:33:10,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:33:10,013 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:33:10,013 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 19:33:10,014 INFO L794 eck$LassoCheckResult]: Stem: 813#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 788#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 789#L794 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 820#L802 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 825#L141 assume 0 != main_~tmp~0; 805#L114 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 795#L903-1 [2020-11-29 19:33:10,014 INFO L796 eck$LassoCheckResult]: Loop: 795#L903-1 assume !false; 798#L534 assume test_~splverifierCounter~0 < 4; 806#L535 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 826#L543 assume !(0 != test_~tmp~4); 802#L543-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 810#L553 assume !(0 != test_~tmp___0~0); 811#L553-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 791#L563 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 792#L571-1 assume !(0 != ~pumpRunning~0); 824#L606 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 960#L638 assume !(0 != ~pumpRunning~0); 875#L613 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 876#L851-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 827#L897 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 828#L883 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 794#L903 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 795#L903-1 [2020-11-29 19:33:10,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:10,015 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:33:10,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:10,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190035587] [2020-11-29 19:33:10,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:10,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:10,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:10,183 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:33:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:10,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2091093438, now seen corresponding path program 1 times [2020-11-29 19:33:10,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:10,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435075956] [2020-11-29 19:33:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:10,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:10,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:10,210 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:33:10,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:10,211 INFO L82 PathProgramCache]: Analyzing trace with hash 831599080, now seen corresponding path program 1 times [2020-11-29 19:33:10,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:10,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119392780] [2020-11-29 19:33:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:10,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:10,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:10,348 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:33:10,531 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-11-29 19:34:48,377 WARN L193 SmtUtils]: Spent 1.63 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:35:55,261 WARN L193 SmtUtils]: Spent 1.11 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:35:55,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:35:55 BoogieIcfgContainer [2020-11-29 19:35:55,465 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:35:55,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:35:55,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:35:55,466 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:35:55,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:07" (3/4) ... [2020-11-29 19:35:55,482 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:35:55,567 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b27aadef-5c58-4970-87b4-b6f1724d5c8a/bin/uautomizer/witness.graphml [2020-11-29 19:35:55,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:35:55,576 INFO L168 Benchmark]: Toolchain (without parser) took 170016.89 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 61.1 MB in the beginning and 34.1 MB in the end (delta: 27.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:55,577 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 92.3 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:35:55,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.16 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 59.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:55,579 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.15 ms. Allocated memory is still 92.3 MB. Free memory was 59.3 MB in the beginning and 56.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:55,579 INFO L168 Benchmark]: Boogie Preprocessor took 46.40 ms. Allocated memory is still 92.3 MB. Free memory was 56.8 MB in the beginning and 54.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:55,580 INFO L168 Benchmark]: RCFGBuilder took 1360.64 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 56.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:55,587 INFO L168 Benchmark]: BuchiAutomizer took 167770.90 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 56.5 MB in the beginning and 36.2 MB in the end (delta: 20.2 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:55,588 INFO L168 Benchmark]: Witness Printer took 108.35 ms. Allocated memory is still 134.2 MB. Free memory was 36.2 MB in the beginning and 34.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:55,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 92.3 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 640.16 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 59.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.15 ms. Allocated memory is still 92.3 MB. Free memory was 59.3 MB in the beginning and 56.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.40 ms. Allocated memory is still 92.3 MB. Free memory was 56.8 MB in the beginning and 54.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1360.64 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 56.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 167770.90 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 56.5 MB in the beginning and 36.2 MB in the end (delta: 20.2 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. * Witness Printer took 108.35 ms. Allocated memory is still 134.2 MB. Free memory was 36.2 MB in the beginning and 34.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 246 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 167.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 166.9s. Construction of modules took 0.2s. 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, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 246 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 224 SDtfs, 432 SDslu, 448 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 533]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13275} State at position 1 is {NULL=0, NULL=13288, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1312e5b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4195e1d6=0, NULL=13275, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16daa5f4=0, NULL=0, NULL=13303, NULL=13283, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c40c54=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45061034=0, NULL=13300, methaneLevelCritical=0, NULL=13294, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59c60615=0, NULL=0, tmp=0, NULL=0, NULL=13285, tmp___1=0, NULL=13299, NULL=0, NULL=0, NULL=13279, NULL=13286, NULL=13292, cleanupTimeShifts=4, NULL=13295, NULL=13290, tmp___0=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4793bfbc=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ccd60a7=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=13276, \result=1, head=0, pumpRunning=0, tmp=1, NULL=13291, \result=0, NULL=13284, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@760ba2f9=0, NULL=0, NULL=13277, NULL=13301, retValue_acc=1, NULL=0, NULL=0, retValue_acc=1, NULL=13302, NULL=0, tmp___2=71, NULL=13297, NULL=13281, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=13280, NULL=13298, NULL=13289, NULL=13293, tmp___1=0, head=0, NULL=0, NULL=0, tmp=0, NULL=13282, NULL=0, NULL=0, NULL=0, NULL=13278, NULL=13296, NULL=13287} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int cleanupTimeShifts = 4; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; [L132] int retValue_acc ; [L133] int tmp ; [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 Loop: [L533] COND TRUE 1 [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp)) [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L767] systemActive = 1 [L606] COND FALSE !(\read(pumpRunning)) [L613] COND TRUE \read(systemActive) [L635] int tmp ; [L638] COND FALSE !(\read(pumpRunning)) [L889] int tmp ; [L890] int tmp___0 ; [L891] int tmp___1 ; [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); [L895] tmp = isMethaneLevelCritical() [L897] COND FALSE !(\read(tmp)) [L879] int retValue_acc ; [L882] retValue_acc = waterLevel [L883] return (retValue_acc); [L901] tmp___0 = getWaterLevel() [L903] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...