./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.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_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/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 eee587482483666264883da3a201ae82d389545c ........................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 00:20:16,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:20:16,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:20:16,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:20:16,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:20:16,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:20:16,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:20:16,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:20:16,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:20:16,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:20:16,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:20:16,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:20:16,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:20:16,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:20:16,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:20:16,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:20:16,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:20:16,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:20:16,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:20:16,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:20:16,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:20:16,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:20:16,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:20:16,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:20:16,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:20:16,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:20:16,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:20:16,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:20:16,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:20:16,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:20:16,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:20:16,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:20:16,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:20:16,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:20:16,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:20:16,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:20:16,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:20:16,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:20:16,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:20:16,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:20:16,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:20:16,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:20:16,930 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:20:16,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:20:16,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:20:16,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:20:16,933 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:20:16,934 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:20:16,934 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:20:16,934 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:20:16,934 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:20:16,935 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:20:16,936 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:20:16,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:20:16,937 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:20:16,937 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:20:16,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:20:16,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:20:16,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:20:16,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:20:16,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:20:16,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:20:16,939 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:20:16,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:20:16,939 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:20:16,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:20:16,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:20:16,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:20:16,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:20:16,941 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:20:16,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:20:16,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:20:16,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:20:16,944 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:20:16,945 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:20:16,946 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_449a81a6-0418-4e78-9d40-8779d5481d55/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eee587482483666264883da3a201ae82d389545c [2020-11-30 00:20:17,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:20:17,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:20:17,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:20:17,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:20:17,391 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:20:17,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2020-11-30 00:20:17,490 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/data/d88c68ac7/c0c14ae2313e4fd19a005e37a4d7f65f/FLAGb723bdbd1 [2020-11-30 00:20:18,101 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:20:18,102 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2020-11-30 00:20:18,124 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/data/d88c68ac7/c0c14ae2313e4fd19a005e37a4d7f65f/FLAGb723bdbd1 [2020-11-30 00:20:18,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/data/d88c68ac7/c0c14ae2313e4fd19a005e37a4d7f65f [2020-11-30 00:20:18,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:20:18,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:20:18,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:20:18,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:20:18,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:20:18,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:20:18" (1/1) ... [2020-11-30 00:20:18,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c8f9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:18, skipping insertion in model container [2020-11-30 00:20:18,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:20:18" (1/1) ... [2020-11-30 00:20:18,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:20:18,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:20:18,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:20:18,871 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:20:18,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:20:19,009 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:20:19,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19 WrapperNode [2020-11-30 00:20:19,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:20:19,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:20:19,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:20:19,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:20:19,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:20:19,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:20:19,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:20:19,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:20:19,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... [2020-11-30 00:20:19,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:20:19,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:20:19,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:20:19,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:20:19,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/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 [2020-11-30 00:20:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:20:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:20:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:20:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:20:20,395 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:20:20,398 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-30 00:20:20,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:20:20 BoogieIcfgContainer [2020-11-30 00:20:20,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:20:20,403 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:20:20,403 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:20:20,407 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:20:20,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:20:20,408 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:20:18" (1/3) ... [2020-11-30 00:20:20,410 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3751304d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:20:20, skipping insertion in model container [2020-11-30 00:20:20,410 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:20:20,411 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:19" (2/3) ... [2020-11-30 00:20:20,411 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3751304d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:20:20, skipping insertion in model container [2020-11-30 00:20:20,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:20:20,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:20:20" (3/3) ... [2020-11-30 00:20:20,414 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2020-11-30 00:20:20,480 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:20:20,480 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:20:20,480 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:20:20,481 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:20:20,481 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:20:20,481 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:20:20,481 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:20:20,481 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:20:20,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states. [2020-11-30 00:20:20,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 00:20:20,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:20:20,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:20:20,548 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:20:20,548 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:20,548 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:20:20,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states. [2020-11-30 00:20:20,554 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 00:20:20,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:20:20,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:20:20,555 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:20:20,556 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:20,562 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);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(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 15#L-1true havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 34#L534true 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; 40#L542true main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 69#L660true assume 0 != main_~tmp~4; 19#L636true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 60#L557-1true [2020-11-30 00:20:20,562 INFO L796 eck$LassoCheckResult]: Loop: 60#L557-1true assume !false; 79#L686true assume test_~splverifierCounter~0 < 4; 25#L687true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 31#L695true assume !(0 != test_~tmp~5); 35#L695-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 10#L705true assume !(0 != test_~tmp___0~1); 12#L705-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 84#L715true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 88#L723-2true assume !(0 != ~pumpRunning~0); 77#L751true assume !(0 != ~systemActive~0); 63#L758true havoc __utac_acc__Specification4_spec__1_#t~ret53, __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 8#L124true __utac_acc__Specification4_spec__1_#t~ret53 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret53;havoc __utac_acc__Specification4_spec__1_#t~ret53; 58#L557true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 60#L557-1true [2020-11-30 00:20:20,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:20,569 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:20:20,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:20,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006318314] [2020-11-30 00:20:20,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:20,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:20,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:21,035 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:21,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:21,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1680236923, now seen corresponding path program 1 times [2020-11-30 00:20:21,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:21,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553787308] [2020-11-30 00:20:21,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:20:21,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553787308] [2020-11-30 00:20:21,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:20:21,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:20:21,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128099277] [2020-11-30 00:20:21,155 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:20:21,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:21,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:20:21,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:20:21,177 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 3 states. [2020-11-30 00:20:21,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:21,237 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2020-11-30 00:20:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:20:21,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2020-11-30 00:20:21,253 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:20:21,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2020-11-30 00:20:21,269 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2020-11-30 00:20:21,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2020-11-30 00:20:21,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2020-11-30 00:20:21,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:20:21,272 INFO L691 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-30 00:20:21,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2020-11-30 00:20:21,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-30 00:20:21,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-30 00:20:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-11-30 00:20:21,319 INFO L714 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-30 00:20:21,320 INFO L594 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-30 00:20:21,320 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:20:21,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2020-11-30 00:20:21,330 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:20:21,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:20:21,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:20:21,333 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:20:21,333 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:21,334 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);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(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 202#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 203#L534 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; 227#L542 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 232#L660 assume 0 != main_~tmp~4; 206#L636 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 207#L557-1 [2020-11-30 00:20:21,334 INFO L796 eck$LassoCheckResult]: Loop: 207#L557-1 assume !false; 248#L686 assume test_~splverifierCounter~0 < 4; 209#L687 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 210#L695 assume !(0 != test_~tmp~5); 225#L695-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 195#L705 assume !(0 != test_~tmp___0~1); 196#L705-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 198#L715 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 255#L723-2 assume !(0 != ~pumpRunning~0); 238#L751 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 242#L783 assume !(0 == ~pumpRunning~0); 229#L758 havoc __utac_acc__Specification4_spec__1_#t~ret53, __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 189#L124 __utac_acc__Specification4_spec__1_#t~ret53 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret53;havoc __utac_acc__Specification4_spec__1_#t~ret53; 190#L557 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 207#L557-1 [2020-11-30 00:20:21,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:21,341 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:20:21,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:21,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894290096] [2020-11-30 00:20:21,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:21,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:21,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:21,582 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:21,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:21,583 INFO L82 PathProgramCache]: Analyzing trace with hash -589506371, now seen corresponding path program 1 times [2020-11-30 00:20:21,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:21,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561881590] [2020-11-30 00:20:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:20:21,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561881590] [2020-11-30 00:20:21,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:20:21,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:20:21,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710341631] [2020-11-30 00:20:21,603 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:20:21,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:21,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:20:21,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:20:21,604 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2020-11-30 00:20:21,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:21,707 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions. [2020-11-30 00:20:21,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:20:21,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 159 transitions. [2020-11-30 00:20:21,711 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2020-11-30 00:20:21,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 118 states and 159 transitions. [2020-11-30 00:20:21,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2020-11-30 00:20:21,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2020-11-30 00:20:21,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 159 transitions. [2020-11-30 00:20:21,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:20:21,715 INFO L691 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2020-11-30 00:20:21,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 159 transitions. [2020-11-30 00:20:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-11-30 00:20:21,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-30 00:20:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2020-11-30 00:20:21,725 INFO L714 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2020-11-30 00:20:21,726 INFO L594 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2020-11-30 00:20:21,726 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:20:21,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 159 transitions. [2020-11-30 00:20:21,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2020-11-30 00:20:21,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:20:21,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:20:21,729 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:20:21,729 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] [2020-11-30 00:20:21,729 INFO L794 eck$LassoCheckResult]: Stem: 435#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);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(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 403#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 404#L534 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; 426#L542 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 434#L660 assume 0 != main_~tmp~4; 407#L636 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 408#L557-1 [2020-11-30 00:20:21,730 INFO L796 eck$LassoCheckResult]: Loop: 408#L557-1 assume !false; 454#L686 assume test_~splverifierCounter~0 < 4; 462#L687 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 496#L695 assume !(0 != test_~tmp~5); 494#L695-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 394#L705 assume !(0 != test_~tmp___0~1); 395#L705-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 399#L715 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 464#L723-2 assume !(0 != ~pumpRunning~0); 460#L751 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 447#L783 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret79, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 448#L132 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 449#L137 isHighWaterLevel_#t~ret79 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret79;havoc isHighWaterLevel_#t~ret79; 405#L903 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 406#L903-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 409#L909 processEnvironment_#t~ret60 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret60;havoc processEnvironment_#t~ret60; 436#L787 assume !(0 != processEnvironment_~tmp~6); 429#L758 havoc __utac_acc__Specification4_spec__1_#t~ret53, __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 390#L124 __utac_acc__Specification4_spec__1_#t~ret53 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret53;havoc __utac_acc__Specification4_spec__1_#t~ret53; 391#L557 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 408#L557-1 [2020-11-30 00:20:21,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:21,730 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:20:21,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:21,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895962988] [2020-11-30 00:20:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:21,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:21,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:21,919 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:21,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1033634391, now seen corresponding path program 1 times [2020-11-30 00:20:21,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:21,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015270118] [2020-11-30 00:20:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:21,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:21,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:21,943 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:21,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1018922417, now seen corresponding path program 1 times [2020-11-30 00:20:21,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:21,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374502694] [2020-11-30 00:20:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:22,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:22,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:22,095 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:22,267 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 00:21:54,119 WARN L193 SmtUtils]: Spent 1.53 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:22:55,021 WARN L193 SmtUtils]: Spent 1.01 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:22:55,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:22:55 BoogieIcfgContainer [2020-11-30 00:22:55,229 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:22:55,230 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:22:55,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:22:55,237 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:22:55,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:20:20" (3/4) ... [2020-11-30 00:22:55,241 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:22:55,299 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_449a81a6-0418-4e78-9d40-8779d5481d55/bin/uautomizer/witness.graphml [2020-11-30 00:22:55,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:22:55,301 INFO L168 Benchmark]: Toolchain (without parser) took 156963.31 ms. Allocated memory was 86.0 MB in the beginning and 130.0 MB in the end (delta: 44.0 MB). Free memory was 50.8 MB in the beginning and 95.3 MB in the end (delta: -44.4 MB). Peak memory consumption was 557.8 kB. Max. memory is 16.1 GB. [2020-11-30 00:22:55,301 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 58.5 MB in the beginning and 58.5 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:22:55,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.75 ms. Allocated memory is still 86.0 MB. Free memory was 50.8 MB in the beginning and 52.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:55,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.58 ms. Allocated memory is still 86.0 MB. Free memory was 52.4 MB in the beginning and 49.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:55,303 INFO L168 Benchmark]: Boogie Preprocessor took 46.86 ms. Allocated memory is still 86.0 MB. Free memory was 49.3 MB in the beginning and 47.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:55,304 INFO L168 Benchmark]: RCFGBuilder took 1249.34 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 47.0 MB in the beginning and 68.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:55,305 INFO L168 Benchmark]: BuchiAutomizer took 154825.84 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 67.4 MB in the beginning and 98.4 MB in the end (delta: -31.1 MB). Peak memory consumption was 69.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:55,306 INFO L168 Benchmark]: Witness Printer took 69.71 ms. Allocated memory is still 130.0 MB. Free memory was 98.4 MB in the beginning and 95.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:55,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 58.5 MB in the beginning and 58.5 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 671.75 ms. Allocated memory is still 86.0 MB. Free memory was 50.8 MB in the beginning and 52.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.58 ms. Allocated memory is still 86.0 MB. Free memory was 52.4 MB in the beginning and 49.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.86 ms. Allocated memory is still 86.0 MB. Free memory was 49.3 MB in the beginning and 47.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1249.34 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 47.0 MB in the beginning and 68.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 154825.84 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 67.4 MB in the beginning and 98.4 MB in the end (delta: -31.1 MB). Peak memory consumption was 69.0 MB. Max. memory is 16.1 GB. * Witness Printer took 69.71 ms. Allocated memory is still 130.0 MB. Free memory was 98.4 MB in the beginning and 95.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 154.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 154.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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 118 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 219 SDtfs, 203 SDslu, 48 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 685]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3487} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=3496, NULL=0, NULL=3487, NULL=3488, NULL=0, NULL=0, NULL=0, NULL=3498, retValue_acc=0, NULL=3505, NULL=3509, methaneLevelCritical=0, NULL=3493, NULL=3497, tmp___0=0, NULL=3506, tmp=0, NULL=0, NULL=0, NULL=3502, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=3515, NULL=3512, cleanupTimeShifts=4, NULL=3489, NULL=3494, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3510, \result=0, NULL=0, NULL=3501, NULL=3513, NULL=3514, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=3508, \result=0, NULL=3507, tmp=1, NULL=0, NULL=3511, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32abb71f=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e6704d1=0, NULL=0, NULL=3492, \result=1, NULL=3500, NULL=0, retValue_acc=1, NULL=0, tmp=1, retValue_acc=0, NULL=0, NULL=3491, NULL=0, tmp=1, tmp___2=66, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5428c7a3=0, NULL=3490, NULL=3504, NULL=3503, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5601d2a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c86a95f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12cb284c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c361a6=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@353f8f6c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ae94c42=0, head=0, tmp=0, NULL=0, NULL=0, NULL=3495, NULL=3499, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L575] int cleanupTimeShifts = 4; [L744] int pumpRunning = 0; [L745] int systemActive = 1; [L651] int retValue_acc ; [L652] int tmp ; [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L658] tmp = valid_product() [L660] COND TRUE \read(tmp) [L676] int splverifierCounter ; [L677] int tmp ; [L678] int tmp___0 ; [L679] int tmp___1 ; [L680] int tmp___2 ; [L683] splverifierCounter = 0 Loop: [L685] COND TRUE 1 [L687] COND TRUE splverifierCounter < 4 [L693] tmp = __VERIFIER_nondet_int() [L695] COND FALSE !(\read(tmp)) [L703] tmp___0 = __VERIFIER_nondet_int() [L705] COND FALSE !(\read(tmp___0)) [L713] tmp___2 = __VERIFIER_nondet_int() [L715] COND TRUE \read(tmp___2) [L917] systemActive = 1 [L751] COND FALSE !(\read(pumpRunning)) [L758] COND TRUE \read(systemActive) [L780] int tmp ; [L783] COND TRUE ! pumpRunning [L895] int retValue_acc ; [L896] int tmp ; [L897] int tmp___0 ; [L129] int retValue_acc ; [L132] COND TRUE waterLevel < 2 [L133] retValue_acc = 1 [L134] return (retValue_acc); [L901] tmp = isHighWaterSensorDry() [L903] COND TRUE \read(tmp) [L904] tmp___0 = 0 [L908] retValue_acc = tmp___0 [L909] return (retValue_acc); [L785] tmp = isHighWaterLevel() [L787] COND FALSE !(\read(tmp)) [L550] int tmp ; [L551] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L555] tmp = getWaterLevel() [L557] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...