./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/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 e60ff67dae14f5ff0ee1027845136e2245e7a1f5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:58:27,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:58:27,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:58:27,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:58:27,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:58:27,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:58:27,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:58:27,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:58:27,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:58:27,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:58:27,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:58:27,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:58:27,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:58:27,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:58:27,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:58:27,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:58:27,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:58:27,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:58:27,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:58:27,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:58:27,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:58:27,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:58:27,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:58:27,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:58:27,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:58:27,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:58:27,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:58:27,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:58:27,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:58:27,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:58:27,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:58:27,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:58:27,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:58:27,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:58:27,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:58:27,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:58:27,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:58:27,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:58:27,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:58:27,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:58:27,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:58:27,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:58:27,885 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:58:27,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:58:27,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:58:27,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:58:27,892 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:58:27,892 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:58:27,893 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:58:27,893 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:58:27,893 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:58:27,893 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:58:27,894 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:58:27,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:58:27,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:58:27,895 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:58:27,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:58:27,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:58:27,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:58:27,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:58:27,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:58:27,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:58:27,897 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:58:27,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:58:27,897 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:58:27,898 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:58:27,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:58:27,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:58:27,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:58:27,899 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:58:27,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:58:27,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:58:27,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:58:27,900 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:58:27,903 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:58:27,903 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_b77614ed-95a9-454e-b9ac-ea342fb75d39/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e60ff67dae14f5ff0ee1027845136e2245e7a1f5 [2020-11-29 23:58:28,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:58:28,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:58:28,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:58:28,206 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:58:28,207 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:58:28,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2020-11-29 23:58:28,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/data/7516b8618/5dd0a0f8fddb499081b05ddf9e80f2bc/FLAGda39be2a9 [2020-11-29 23:58:28,801 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:58:28,802 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2020-11-29 23:58:28,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/data/7516b8618/5dd0a0f8fddb499081b05ddf9e80f2bc/FLAGda39be2a9 [2020-11-29 23:58:29,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/data/7516b8618/5dd0a0f8fddb499081b05ddf9e80f2bc [2020-11-29 23:58:29,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:58:29,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:58:29,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:58:29,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:58:29,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:58:29,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:29,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423002db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29, skipping insertion in model container [2020-11-29 23:58:29,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:29,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:58:29,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:58:29,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:58:29,842 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:58:29,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:58:29,963 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:58:29,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29 WrapperNode [2020-11-29 23:58:29,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:58:29,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:58:29,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:58:29,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:58:29,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:58:30,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:58:30,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:58:30,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:58:30,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... [2020-11-29 23:58:30,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:58:30,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:58:30,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:58:30,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:58:30,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/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 23:58:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:58:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:58:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:58:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:58:31,128 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:58:31,128 INFO L298 CfgBuilder]: Removed 132 assume(true) statements. [2020-11-29 23:58:31,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:58:31 BoogieIcfgContainer [2020-11-29 23:58:31,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:58:31,131 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:58:31,131 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:58:31,135 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:58:31,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:58:31,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:58:29" (1/3) ... [2020-11-29 23:58:31,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@154207dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:58:31, skipping insertion in model container [2020-11-29 23:58:31,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:58:31,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:29" (2/3) ... [2020-11-29 23:58:31,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@154207dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:58:31, skipping insertion in model container [2020-11-29 23:58:31,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:58:31,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:58:31" (3/3) ... [2020-11-29 23:58:31,139 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-11-29 23:58:31,183 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:58:31,183 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:58:31,183 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:58:31,184 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:58:31,184 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:58:31,184 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:58:31,184 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:58:31,184 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:58:31,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states. [2020-11-29 23:58:31,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2020-11-29 23:58:31,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:58:31,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:58:31,244 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:58:31,244 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:58:31,244 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:58:31,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states. [2020-11-29 23:58:31,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2020-11-29 23:58:31,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:58:31,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:58:31,255 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:58:31,255 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:58:31,261 INFO L794 eck$LassoCheckResult]: Stem: 53#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 17#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; 3#L303true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 45#L311true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 65#L132true assume 0 != main_~tmp~0; 86#L105true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 66#L165-1true [2020-11-29 23:58:31,261 INFO L796 eck$LassoCheckResult]: Loop: 66#L165-1true assume !false; 7#L899true assume test_~splverifierCounter~0 < 4; 39#L900true test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 71#L908true assume !(0 != test_~tmp~8); 73#L908-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 48#L918true assume !(0 != test_~tmp___0~2); 50#L918-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 14#L928true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 24#L936-1true assume !(0 != ~pumpRunning~0); 18#L702true assume !(0 != ~systemActive~0); 35#L709true havoc __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 6#L230-1true __utac_acc__Specification3_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 89#L159true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 66#L165-1true [2020-11-29 23:58:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:31,268 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 23:58:31,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:31,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229577013] [2020-11-29 23:58:31,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:31,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:31,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:31,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:58:31,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:31,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1671648193, now seen corresponding path program 1 times [2020-11-29 23:58:31,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:31,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474553560] [2020-11-29 23:58:31,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:31,936 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 23:58:31,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474553560] [2020-11-29 23:58:31,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:58:31,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:58:31,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31651097] [2020-11-29 23:58:31,949 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:58:31,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:58:31,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:58:31,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:58:31,970 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2020-11-29 23:58:32,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:58:32,056 INFO L93 Difference]: Finished difference Result 178 states and 252 transitions. [2020-11-29 23:58:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:58:32,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 252 transitions. [2020-11-29 23:58:32,069 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2020-11-29 23:58:32,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 164 states and 237 transitions. [2020-11-29 23:58:32,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2020-11-29 23:58:32,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2020-11-29 23:58:32,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 237 transitions. [2020-11-29 23:58:32,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:58:32,098 INFO L691 BuchiCegarLoop]: Abstraction has 164 states and 237 transitions. [2020-11-29 23:58:32,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 237 transitions. [2020-11-29 23:58:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2020-11-29 23:58:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-29 23:58:32,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 234 transitions. [2020-11-29 23:58:32,154 INFO L714 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2020-11-29 23:58:32,155 INFO L594 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2020-11-29 23:58:32,155 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:58:32,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 234 transitions. [2020-11-29 23:58:32,163 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2020-11-29 23:58:32,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:58:32,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:58:32,168 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:58:32,168 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:58:32,168 INFO L794 eck$LassoCheckResult]: Stem: 355#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 309#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; 282#L303 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 283#L311 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 342#L132 assume 0 != main_~tmp~0; 367#L105 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 377#L165-1 [2020-11-29 23:58:32,169 INFO L796 eck$LassoCheckResult]: Loop: 377#L165-1 assume !false; 395#L899 assume test_~splverifierCounter~0 < 4; 394#L900 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 393#L908 assume !(0 != test_~tmp~8); 391#L908-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 390#L918 assume !(0 != test_~tmp___0~2); 350#L918-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 305#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 306#L936-1 assume !(0 != ~pumpRunning~0); 310#L702 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 311#L734 assume !(0 == ~pumpRunning~0); 401#L709 havoc __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 400#L230-1 __utac_acc__Specification3_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 397#L159 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 377#L165-1 [2020-11-29 23:58:32,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:32,170 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 23:58:32,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:32,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255689227] [2020-11-29 23:58:32,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:32,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:32,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:32,425 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:58:32,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:32,431 INFO L82 PathProgramCache]: Analyzing trace with hash -323255282, now seen corresponding path program 1 times [2020-11-29 23:58:32,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:32,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978711618] [2020-11-29 23:58:32,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:32,456 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 23:58:32,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978711618] [2020-11-29 23:58:32,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:58:32,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:58:32,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715644195] [2020-11-29 23:58:32,458 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:58:32,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:58:32,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:58:32,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:58:32,459 INFO L87 Difference]: Start difference. First operand 162 states and 234 transitions. cyclomatic complexity: 75 Second operand 3 states. [2020-11-29 23:58:32,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:58:32,584 INFO L93 Difference]: Finished difference Result 257 states and 358 transitions. [2020-11-29 23:58:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:58:32,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 358 transitions. [2020-11-29 23:58:32,589 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 183 [2020-11-29 23:58:32,596 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 257 states and 358 transitions. [2020-11-29 23:58:32,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2020-11-29 23:58:32,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2020-11-29 23:58:32,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 358 transitions. [2020-11-29 23:58:32,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:58:32,603 INFO L691 BuchiCegarLoop]: Abstraction has 257 states and 358 transitions. [2020-11-29 23:58:32,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 358 transitions. [2020-11-29 23:58:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2020-11-29 23:58:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-11-29 23:58:32,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 358 transitions. [2020-11-29 23:58:32,627 INFO L714 BuchiCegarLoop]: Abstraction has 257 states and 358 transitions. [2020-11-29 23:58:32,628 INFO L594 BuchiCegarLoop]: Abstraction has 257 states and 358 transitions. [2020-11-29 23:58:32,628 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:58:32,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 358 transitions. [2020-11-29 23:58:32,632 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 183 [2020-11-29 23:58:32,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:58:32,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:58:32,634 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:58:32,634 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] [2020-11-29 23:58:32,635 INFO L794 eck$LassoCheckResult]: Stem: 787#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 739#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; 709#L303 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 710#L311 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 776#L132 assume 0 != main_~tmp~0; 800#L105 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 820#L165-1 [2020-11-29 23:58:32,635 INFO L796 eck$LassoCheckResult]: Loop: 820#L165-1 assume !false; 852#L899 assume test_~splverifierCounter~0 < 4; 767#L900 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 768#L908 assume !(0 != test_~tmp~8); 795#L908-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 779#L918 assume !(0 != test_~tmp___0~2); 780#L918-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 732#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 733#L936-1 assume !(0 != ~pumpRunning~0); 893#L702 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 898#L734 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 886#L270 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 896#L275 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 816#L854 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 817#L854-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 894#L860 processEnvironment_#t~ret57 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret57;havoc processEnvironment_#t~ret57; 725#L738 assume !(0 != processEnvironment_~tmp~5); 726#L709 havoc __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 713#L230-1 __utac_acc__Specification3_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 714#L159 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 820#L165-1 [2020-11-29 23:58:32,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:32,636 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 23:58:32,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:32,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869885007] [2020-11-29 23:58:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:32,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:32,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:32,753 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:58:32,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:32,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1551152038, now seen corresponding path program 1 times [2020-11-29 23:58:32,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:32,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607901232] [2020-11-29 23:58:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:32,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:32,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:32,769 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:58:32,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:32,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1536440064, now seen corresponding path program 1 times [2020-11-29 23:58:32,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:32,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365398962] [2020-11-29 23:58:32,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:32,858 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 23:58:32,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365398962] [2020-11-29 23:58:32,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:58:32,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:58:32,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501288274] [2020-11-29 23:58:33,011 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-11-29 23:58:33,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:58:33,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:58:33,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:58:33,084 INFO L87 Difference]: Start difference. First operand 257 states and 358 transitions. cyclomatic complexity: 104 Second operand 5 states. [2020-11-29 23:58:33,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:58:33,316 INFO L93 Difference]: Finished difference Result 856 states and 1198 transitions. [2020-11-29 23:58:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:58:33,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 856 states and 1198 transitions. [2020-11-29 23:58:33,325 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 646 [2020-11-29 23:58:33,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 856 states to 856 states and 1198 transitions. [2020-11-29 23:58:33,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 856 [2020-11-29 23:58:33,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 856 [2020-11-29 23:58:33,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 856 states and 1198 transitions. [2020-11-29 23:58:33,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:58:33,340 INFO L691 BuchiCegarLoop]: Abstraction has 856 states and 1198 transitions. [2020-11-29 23:58:33,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states and 1198 transitions. [2020-11-29 23:58:33,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 508. [2020-11-29 23:58:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-11-29 23:58:33,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 694 transitions. [2020-11-29 23:58:33,372 INFO L714 BuchiCegarLoop]: Abstraction has 508 states and 694 transitions. [2020-11-29 23:58:33,372 INFO L594 BuchiCegarLoop]: Abstraction has 508 states and 694 transitions. [2020-11-29 23:58:33,373 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 23:58:33,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 508 states and 694 transitions. [2020-11-29 23:58:33,378 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 366 [2020-11-29 23:58:33,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:58:33,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:58:33,380 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:58:33,380 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:58:33,381 INFO L794 eck$LassoCheckResult]: Stem: 1917#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1871#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; 1838#L303 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1839#L311 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1907#L132 assume 0 != main_~tmp~0; 1931#L105 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1900#L165-1 [2020-11-29 23:58:33,381 INFO L796 eck$LassoCheckResult]: Loop: 1900#L165-1 assume !false; 1846#L899 assume test_~splverifierCounter~0 < 4; 1847#L900 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 1896#L908 assume !(0 != test_~tmp~8); 1925#L908-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 1910#L918 assume !(0 != test_~tmp___0~2); 1911#L918-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 1863#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1864#L936-1 assume !(0 != ~pumpRunning~0); 1872#L702 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1873#L734 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 2336#L270 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 2334#L275 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 2333#L854 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2332#L854-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 2331#L860 processEnvironment_#t~ret57 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret57;havoc processEnvironment_#t~ret57; 2327#L738 assume !(0 != processEnvironment_~tmp~5); 2260#L709 havoc __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_#t~ret10, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 2259#L230-1 __utac_acc__Specification3_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 1949#L159 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 1950#L262 __utac_acc__Specification3_spec__1_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret9;havoc __utac_acc__Specification3_spec__1_#t~ret9; 1899#L165 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1900#L165-1 [2020-11-29 23:58:33,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:33,382 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-11-29 23:58:33,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:33,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298225407] [2020-11-29 23:58:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:33,437 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:33,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:33,488 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:58:33,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:33,489 INFO L82 PathProgramCache]: Analyzing trace with hash -303450066, now seen corresponding path program 1 times [2020-11-29 23:58:33,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:33,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833090776] [2020-11-29 23:58:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:33,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:33,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:33,512 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:58:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:33,513 INFO L82 PathProgramCache]: Analyzing trace with hash 949855060, now seen corresponding path program 1 times [2020-11-29 23:58:33,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:58:33,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827474985] [2020-11-29 23:58:33,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:58:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:33,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:33,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:33,627 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:58:33,821 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-11-29 23:59:52,442 WARN L193 SmtUtils]: Spent 1.31 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:00:52,078 WARN L193 SmtUtils]: Spent 59.63 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:00:52,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:00:52 BoogieIcfgContainer [2020-11-30 00:00:52,397 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:00:52,398 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:00:52,398 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:00:52,398 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:00:52,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:58:31" (3/4) ... [2020-11-30 00:00:52,402 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:00:52,455 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b77614ed-95a9-454e-b9ac-ea342fb75d39/bin/uautomizer/witness.graphml [2020-11-30 00:00:52,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:00:52,457 INFO L168 Benchmark]: Toolchain (without parser) took 143159.61 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 64.8 MB in the beginning and 90.6 MB in the end (delta: -25.8 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:52,458 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 75.5 MB. Free memory is still 36.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:00:52,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.51 ms. Allocated memory is still 96.5 MB. Free memory was 64.5 MB in the beginning and 63.6 MB in the end (delta: 875.9 kB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:52,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.57 ms. Allocated memory is still 96.5 MB. Free memory was 63.6 MB in the beginning and 60.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:52,459 INFO L168 Benchmark]: Boogie Preprocessor took 40.50 ms. Allocated memory is still 96.5 MB. Free memory was 60.3 MB in the beginning and 57.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:52,460 INFO L168 Benchmark]: RCFGBuilder took 1004.04 ms. Allocated memory is still 96.5 MB. Free memory was 57.7 MB in the beginning and 44.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:52,461 INFO L168 Benchmark]: BuchiAutomizer took 141265.74 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 44.1 MB in the beginning and 93.6 MB in the end (delta: -49.4 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:52,461 INFO L168 Benchmark]: Witness Printer took 58.12 ms. Allocated memory is still 142.6 MB. Free memory was 93.6 MB in the beginning and 90.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:52,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 75.5 MB. Free memory is still 36.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 663.51 ms. Allocated memory is still 96.5 MB. Free memory was 64.5 MB in the beginning and 63.6 MB in the end (delta: 875.9 kB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.57 ms. Allocated memory is still 96.5 MB. Free memory was 63.6 MB in the beginning and 60.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.50 ms. Allocated memory is still 96.5 MB. Free memory was 60.3 MB in the beginning and 57.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1004.04 ms. Allocated memory is still 96.5 MB. Free memory was 57.7 MB in the beginning and 44.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 141265.74 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 44.1 MB in the beginning and 93.6 MB in the end (delta: -49.4 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. * Witness Printer took 58.12 ms. Allocated memory is still 142.6 MB. Free memory was 93.6 MB in the beginning and 90.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 508 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 141.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 140.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 350 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 508 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 419 SDtfs, 688 SDslu, 689 SDs, 0 SdLazy, 111 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 898]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=29295} State at position 1 is {NULL=0, NULL=0, NULL=29295, NULL=29307, NULL=0, NULL=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2df6ba3f=0, NULL=0, tmp___1=0, tmp=0, NULL=0, NULL=29323, tmp=0, cleanupTimeShifts=4, NULL=29303, NULL=29304, NULL=29319, waterLevel=1, NULL=0, NULL=0, NULL=29298, retValue_acc=1, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@271fd288=0, \result=1, NULL=29315, NULL=0, retValue_acc=0, NULL=29301, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=29297, head=0, tmp=0, NULL=29316, retValue_acc=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a63acaa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d2fc916=0, NULL=0, NULL=0, NULL=29314, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e749b1=0, tmp___0=0, NULL=0, NULL=0, NULL=29311, NULL=0, tmp___0=1, NULL=29318, NULL=29317, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62f98f6e=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e420e5c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5413cf0b=0, NULL=0, systemActive=1, NULL=29300, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70669f84=0, NULL=0, NULL=29312, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=29322, NULL=29299, NULL=29302, \result=0, NULL=29309, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=29305, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@776ebf76=0, NULL=29320, tmp___2=72, splverifierCounter=0, NULL=0, \result=0, NULL=29321, tmp___1=0, NULL=0, NULL=29296, NULL=29308, NULL=29313, NULL=29306, NULL=29310} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L187] int waterLevel = 1; [L188] int methaneLevelCritical = 0; [L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L695] int pumpRunning = 0; [L696] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L889] int splverifierCounter ; [L890] int tmp ; [L891] int tmp___0 ; [L892] int tmp___1 ; [L893] int tmp___2 ; [L896] splverifierCounter = 0 Loop: [L898] COND TRUE 1 [L900] COND TRUE splverifierCounter < 4 [L906] tmp = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp)) [L916] tmp___0 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___0)) [L926] tmp___2 = __VERIFIER_nondet_int() [L928] COND TRUE \read(tmp___2) [L883] systemActive = 1 [L702] COND FALSE !(\read(pumpRunning)) [L709] COND TRUE \read(systemActive) [L731] int tmp ; [L734] COND TRUE ! pumpRunning [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L267] int retValue_acc ; [L270] COND TRUE waterLevel < 2 [L271] retValue_acc = 1 [L272] return (retValue_acc); [L852] tmp = isHighWaterSensorDry() [L854] COND TRUE \read(tmp) [L855] tmp___0 = 0 [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); [L736] tmp = isHighWaterLevel() [L738] COND FALSE !(\read(tmp)) [L151] int tmp ; [L152] int tmp___0 ; [L153] int tmp___1 ; [L226] int retValue_acc ; [L229] retValue_acc = methaneLevelCritical [L230] return (retValue_acc); [L157] tmp = isMethaneLevelCritical() [L159] COND FALSE !(\read(tmp)) [L258] int retValue_acc ; [L261] retValue_acc = waterLevel [L262] return (retValue_acc); [L163] tmp___0 = getWaterLevel() [L165] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...