./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product38.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_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/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 0864dde8f48fe05a4eca6577f28c648eed4bb154 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:29:45,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:29:45,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:29:46,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:29:46,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:29:46,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:29:46,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:29:46,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:29:46,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:29:46,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:29:46,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:29:46,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:29:46,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:29:46,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:29:46,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:29:46,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:29:46,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:29:46,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:29:46,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:29:46,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:29:46,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:29:46,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:29:46,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:29:46,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:29:46,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:29:46,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:29:46,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:29:46,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:29:46,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:29:46,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:29:46,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:29:46,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:29:46,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:29:46,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:29:46,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:29:46,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:29:46,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:29:46,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:29:46,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:29:46,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:29:46,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:29:46,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:29:46,230 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:29:46,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:29:46,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:29:46,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:29:46,234 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:29:46,234 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:29:46,234 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:29:46,235 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:29:46,235 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:29:46,235 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:29:46,236 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:29:46,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:29:46,237 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:29:46,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:29:46,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:29:46,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:29:46,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:29:46,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:29:46,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:29:46,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:29:46,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:29:46,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:29:46,240 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:29:46,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:29:46,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:29:46,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:29:46,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:29:46,241 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:29:46,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:29:46,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:29:46,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:29:46,243 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:29:46,244 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:29:46,245 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_92982f23-60f7-4d00-83c2-c43302ad6a97/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0864dde8f48fe05a4eca6577f28c648eed4bb154 [2020-11-29 22:29:46,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:29:46,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:29:46,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:29:46,702 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:29:46,703 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:29:46,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2020-11-29 22:29:46,817 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/data/ebd83cf69/312281adb8bf4dafa3235862062dc190/FLAGdc71f3c42 [2020-11-29 22:29:47,515 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:29:47,516 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2020-11-29 22:29:47,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/data/ebd83cf69/312281adb8bf4dafa3235862062dc190/FLAGdc71f3c42 [2020-11-29 22:29:47,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/data/ebd83cf69/312281adb8bf4dafa3235862062dc190 [2020-11-29 22:29:47,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:29:47,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:29:47,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:29:47,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:29:47,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:29:47,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:29:47" (1/1) ... [2020-11-29 22:29:47,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9762e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:47, skipping insertion in model container [2020-11-29 22:29:47,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:29:47" (1/1) ... [2020-11-29 22:29:47,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:29:47,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:29:48,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:29:48,513 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:29:48,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:29:48,647 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:29:48,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48 WrapperNode [2020-11-29 22:29:48,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:29:48,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:29:48,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:29:48,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:29:48,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:29:48,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:29:48,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:29:48,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:29:48,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... [2020-11-29 22:29:48,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:29:48,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:29:48,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:29:48,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:29:48,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/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 22:29:48,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:29:48,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:29:48,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:29:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:29:50,442 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:29:50,445 INFO L298 CfgBuilder]: Removed 178 assume(true) statements. [2020-11-29 22:29:50,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:29:50 BoogieIcfgContainer [2020-11-29 22:29:50,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:29:50,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:29:50,451 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:29:50,455 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:29:50,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:29:50,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:29:47" (1/3) ... [2020-11-29 22:29:50,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dccdb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:29:50, skipping insertion in model container [2020-11-29 22:29:50,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:29:50,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:29:48" (2/3) ... [2020-11-29 22:29:50,460 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dccdb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:29:50, skipping insertion in model container [2020-11-29 22:29:50,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:29:50,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:29:50" (3/3) ... [2020-11-29 22:29:50,465 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2020-11-29 22:29:50,553 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:29:50,554 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:29:50,554 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:29:50,554 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:29:50,554 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:29:50,555 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:29:50,555 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:29:50,555 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:29:50,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2020-11-29 22:29:50,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-29 22:29:50,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:29:50,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:29:50,629 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:29:50,629 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:29:50,629 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:29:50,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2020-11-29 22:29:50,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-29 22:29:50,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:29:50,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:29:50,642 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:29:50,642 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:29:50,649 INFO L794 eck$LassoCheckResult]: Stem: 98#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 9#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; 114#L886true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 118#L894true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 84#L143true assume 0 != main_~tmp~0; 23#L114true ~switchedOnBeforeTS~0 := 0; 86#L165true 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___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L186-1true [2020-11-29 22:29:50,651 INFO L796 eck$LassoCheckResult]: Loop: 19#L186-1true assume !false; 5#L910true assume test_~splverifierCounter~0 < 4; 109#L911true test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 112#L919true assume !(0 != test_~tmp~8); 115#L919-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 24#L929true assume !(0 != test_~tmp___0~2); 27#L929-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 70#L939true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 79#L947-2true havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 54#L796true __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 3#L175true assume !(0 != ~pumpRunning~0); 111#L685true assume !(0 != ~systemActive~0); 29#L692true havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 41#L653true __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 4#L186true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 19#L186-1true [2020-11-29 22:29:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:50,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 22:29:50,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:50,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251012406] [2020-11-29 22:29:50,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:50,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:51,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:51,249 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:29:51,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:51,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1012977167, now seen corresponding path program 1 times [2020-11-29 22:29:51,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:51,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442417957] [2020-11-29 22:29:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:29:51,357 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 22:29:51,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442417957] [2020-11-29 22:29:51,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:29:51,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:29:51,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170409396] [2020-11-29 22:29:51,372 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:29:51,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:29:51,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:29:51,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:29:51,398 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 3 states. [2020-11-29 22:29:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:29:51,519 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2020-11-29 22:29:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:29:51,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 167 transitions. [2020-11-29 22:29:51,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 22:29:51,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 110 states and 159 transitions. [2020-11-29 22:29:51,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2020-11-29 22:29:51,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110 [2020-11-29 22:29:51,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 159 transitions. [2020-11-29 22:29:51,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:29:51,546 INFO L691 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2020-11-29 22:29:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 159 transitions. [2020-11-29 22:29:51,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-11-29 22:29:51,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-29 22:29:51,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 159 transitions. [2020-11-29 22:29:51,589 INFO L714 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2020-11-29 22:29:51,589 INFO L594 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2020-11-29 22:29:51,589 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:29:51,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 159 transitions. [2020-11-29 22:29:51,593 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 22:29:51,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:29:51,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:29:51,594 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:29:51,595 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:29:51,595 INFO L794 eck$LassoCheckResult]: Stem: 350#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 261#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; 262#L886 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 355#L894 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 346#L143 assume 0 != main_~tmp~0; 289#L114 ~switchedOnBeforeTS~0 := 0; 290#L165 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___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 251#L186-1 [2020-11-29 22:29:51,596 INFO L796 eck$LassoCheckResult]: Loop: 251#L186-1 assume !false; 252#L910 assume test_~splverifierCounter~0 < 4; 253#L911 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 354#L919 assume !(0 != test_~tmp~8); 264#L919-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 291#L929 assume !(0 != test_~tmp___0~2); 293#L929-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 298#L939 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 341#L947-2 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 325#L796 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 246#L175 assume !(0 != ~pumpRunning~0); 247#L685 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 351#L743 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 287#L717-1 assume !(0 == ~pumpRunning~0); 285#L692 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 301#L653 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 249#L186 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 251#L186-1 [2020-11-29 22:29:51,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:51,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 22:29:51,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:51,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435450785] [2020-11-29 22:29:51,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:51,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:51,846 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:51,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:29:51,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:51,869 INFO L82 PathProgramCache]: Analyzing trace with hash 368159174, now seen corresponding path program 1 times [2020-11-29 22:29:51,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:51,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253080873] [2020-11-29 22:29:51,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:29:51,887 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 22:29:51,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253080873] [2020-11-29 22:29:51,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:29:51,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:29:51,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637954529] [2020-11-29 22:29:51,889 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:29:51,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:29:51,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:29:51,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:29:51,920 INFO L87 Difference]: Start difference. First operand 110 states and 159 transitions. cyclomatic complexity: 51 Second operand 3 states. [2020-11-29 22:29:52,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:29:52,074 INFO L93 Difference]: Finished difference Result 159 states and 218 transitions. [2020-11-29 22:29:52,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:29:52,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 218 transitions. [2020-11-29 22:29:52,078 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2020-11-29 22:29:52,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 218 transitions. [2020-11-29 22:29:52,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2020-11-29 22:29:52,082 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2020-11-29 22:29:52,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 218 transitions. [2020-11-29 22:29:52,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:29:52,084 INFO L691 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2020-11-29 22:29:52,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 218 transitions. [2020-11-29 22:29:52,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-11-29 22:29:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-29 22:29:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 218 transitions. [2020-11-29 22:29:52,095 INFO L714 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2020-11-29 22:29:52,096 INFO L594 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2020-11-29 22:29:52,096 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:29:52,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 218 transitions. [2020-11-29 22:29:52,098 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2020-11-29 22:29:52,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:29:52,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:29:52,099 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:29:52,099 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, 1] [2020-11-29 22:29:52,100 INFO L794 eck$LassoCheckResult]: Stem: 631#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 535#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; 536#L886 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 636#L894 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 627#L143 assume 0 != main_~tmp~0; 561#L114 ~switchedOnBeforeTS~0 := 0; 562#L165 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___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 525#L186-1 [2020-11-29 22:29:52,102 INFO L796 eck$LassoCheckResult]: Loop: 525#L186-1 assume !false; 526#L910 assume test_~splverifierCounter~0 < 4; 527#L911 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 635#L919 assume !(0 != test_~tmp~8); 538#L919-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 563#L929 assume !(0 != test_~tmp___0~2); 565#L929-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 570#L939 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 622#L947-2 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 604#L796 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 521#L175 assume !(0 != ~pumpRunning~0); 522#L685 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 632#L743 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 559#L717-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 560#L661-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 592#L666-1 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 628#L845-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 624#L845-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 602#L851-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 603#L721-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 573#L692 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 574#L653 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 523#L186 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 525#L186-1 [2020-11-29 22:29:52,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:52,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 22:29:52,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:52,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746467033] [2020-11-29 22:29:52,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:52,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:52,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:52,281 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:29:52,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:52,282 INFO L82 PathProgramCache]: Analyzing trace with hash 156241458, now seen corresponding path program 1 times [2020-11-29 22:29:52,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:52,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110335394] [2020-11-29 22:29:52,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:29:52,329 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 22:29:52,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110335394] [2020-11-29 22:29:52,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:29:52,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:29:52,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694194365] [2020-11-29 22:29:52,330 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:29:52,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:29:52,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:29:52,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:29:52,332 INFO L87 Difference]: Start difference. First operand 159 states and 218 transitions. cyclomatic complexity: 61 Second operand 5 states. [2020-11-29 22:29:52,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:29:52,592 INFO L93 Difference]: Finished difference Result 437 states and 587 transitions. [2020-11-29 22:29:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:29:52,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 437 states and 587 transitions. [2020-11-29 22:29:52,599 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 283 [2020-11-29 22:29:52,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 437 states to 437 states and 587 transitions. [2020-11-29 22:29:52,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 437 [2020-11-29 22:29:52,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 437 [2020-11-29 22:29:52,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 437 states and 587 transitions. [2020-11-29 22:29:52,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:29:52,627 INFO L691 BuchiCegarLoop]: Abstraction has 437 states and 587 transitions. [2020-11-29 22:29:52,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states and 587 transitions. [2020-11-29 22:29:52,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 311. [2020-11-29 22:29:52,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-11-29 22:29:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 415 transitions. [2020-11-29 22:29:52,667 INFO L714 BuchiCegarLoop]: Abstraction has 311 states and 415 transitions. [2020-11-29 22:29:52,669 INFO L594 BuchiCegarLoop]: Abstraction has 311 states and 415 transitions. [2020-11-29 22:29:52,669 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 22:29:52,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 415 transitions. [2020-11-29 22:29:52,677 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2020-11-29 22:29:52,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:29:52,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:29:52,696 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:29:52,699 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, 1, 1, 1] [2020-11-29 22:29:52,700 INFO L794 eck$LassoCheckResult]: Stem: 1250#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1146#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; 1147#L886 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1257#L894 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1243#L143 assume 0 != main_~tmp~0; 1173#L114 ~switchedOnBeforeTS~0 := 0; 1174#L165 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___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1166#L186-1 [2020-11-29 22:29:52,704 INFO L796 eck$LassoCheckResult]: Loop: 1166#L186-1 assume !false; 1137#L910 assume test_~splverifierCounter~0 < 4; 1138#L911 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 1254#L919 assume !(0 != test_~tmp~8); 1256#L919-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 1435#L929 assume !(0 != test_~tmp___0~2); 1431#L929-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 1429#L939 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1425#L947-2 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 1423#L796 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 1421#L175 assume !(0 != ~pumpRunning~0); 1409#L685 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1251#L743 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1171#L717-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1172#L661-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1206#L666-1 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 1352#L845-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1350#L845-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1216#L851-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 1217#L721-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1186#L692 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1187#L653 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 1135#L186 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 1136#L796-1 __utac_acc__Specification5_spec__3_#t~ret10 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret10;havoc __utac_acc__Specification5_spec__3_#t~ret10; 1223#L190 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1166#L186-1 [2020-11-29 22:29:52,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:52,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 22:29:52,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:52,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174765263] [2020-11-29 22:29:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:52,781 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:52,832 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:52,846 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:29:52,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:52,848 INFO L82 PathProgramCache]: Analyzing trace with hash -175828499, now seen corresponding path program 1 times [2020-11-29 22:29:52,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:52,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523895037] [2020-11-29 22:29:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:52,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:52,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:52,869 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:29:52,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:29:52,871 INFO L82 PathProgramCache]: Analyzing trace with hash -239254681, now seen corresponding path program 1 times [2020-11-29 22:29:52,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:29:52,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078486297] [2020-11-29 22:29:52,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:29:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:52,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:29:52,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:29:53,021 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:29:53,265 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-29 22:31:38,659 WARN L193 SmtUtils]: Spent 1.75 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 22:32:38,245 WARN L193 SmtUtils]: Spent 59.56 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 22:32:38,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:32:38 BoogieIcfgContainer [2020-11-29 22:32:38,517 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:32:38,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:32:38,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:32:38,518 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:32:38,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:29:50" (3/4) ... [2020-11-29 22:32:38,521 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:32:38,575 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_92982f23-60f7-4d00-83c2-c43302ad6a97/bin/uautomizer/witness.graphml [2020-11-29 22:32:38,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:32:38,581 INFO L168 Benchmark]: Toolchain (without parser) took 170755.52 ms. Allocated memory was 96.5 MB in the beginning and 169.9 MB in the end (delta: 73.4 MB). Free memory was 63.1 MB in the beginning and 77.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 58.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:32:38,582 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 96.5 MB. Free memory was 69.5 MB in the beginning and 69.5 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:32:38,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.53 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: -87.1 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:32:38,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.77 ms. Allocated memory is still 96.5 MB. Free memory was 62.5 MB in the beginning and 59.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:32:38,584 INFO L168 Benchmark]: Boogie Preprocessor took 107.79 ms. Allocated memory is still 96.5 MB. Free memory was 59.2 MB in the beginning and 56.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:32:38,584 INFO L168 Benchmark]: RCFGBuilder took 1589.64 ms. Allocated memory is still 96.5 MB. Free memory was 56.7 MB in the beginning and 35.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:32:38,585 INFO L168 Benchmark]: BuchiAutomizer took 168066.92 ms. Allocated memory was 96.5 MB in the beginning and 169.9 MB in the end (delta: 73.4 MB). Free memory was 35.9 MB in the beginning and 79.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:32:38,585 INFO L168 Benchmark]: Witness Printer took 61.61 ms. Allocated memory is still 169.9 MB. Free memory was 79.5 MB in the beginning and 77.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:32:38,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 96.5 MB. Free memory was 69.5 MB in the beginning and 69.5 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 819.53 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: -87.1 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.77 ms. Allocated memory is still 96.5 MB. Free memory was 62.5 MB in the beginning and 59.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.79 ms. Allocated memory is still 96.5 MB. Free memory was 59.2 MB in the beginning and 56.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1589.64 ms. Allocated memory is still 96.5 MB. Free memory was 56.7 MB in the beginning and 35.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 168066.92 ms. Allocated memory was 96.5 MB in the beginning and 169.9 MB in the end (delta: 73.4 MB). Free memory was 35.9 MB in the beginning and 79.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 16.1 GB. * Witness Printer took 61.61 ms. Allocated memory is still 169.9 MB. Free memory was 79.5 MB in the beginning and 77.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 311 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 167.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 167.0s. Construction of modules took 0.3s. 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, 126 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 311 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 563 SDtfs, 781 SDslu, 579 SDs, 0 SdLazy, 122 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 909]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=13969, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b0bbaa6=0, NULL=0, NULL=0, NULL=0, NULL=13972, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@426ec791=0, retValue_acc=1, NULL=0, NULL=13974, retValue_acc=0, NULL=13983, tmp=0, tmp___1=0, NULL=13992, NULL=0, NULL=13975, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cc6eb4=0, cleanupTimeShifts=4, NULL=13973, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=13979, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=13970, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6217a09d=0, NULL=0, \result=1, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=13987, retValue_acc=1, head=0, tmp=0, NULL=13967, NULL=0, NULL=0, NULL=13994, NULL=13977, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=13993, NULL=0, NULL=13985, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fcbdaa8=0, tmp___0=0, NULL=13989, NULL=0, tmp=1, NULL=0, NULL=13981, switchedOnBeforeTS=0, NULL=13976, tmp=0, \result=0, NULL=13978, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bcfc1cb=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fb8468d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@261089c9=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24df92c4=0, \result=0, NULL=13988, NULL=0, NULL=0, NULL=13968, tmp___0=0, NULL=13984, \result=0, NULL=13971, NULL=0, NULL=13990, tmp___2=61, splverifierCounter=0, NULL=0, NULL=13991, NULL=13986, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ffbb010=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2853ff80=0, NULL=13980, retValue_acc=0, NULL=13982} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int cleanupTimeShifts = 4; [L159] int switchedOnBeforeTS ; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L578] int waterLevel = 1; [L579] int methaneLevelCritical = 0; [L675] int pumpRunning = 0; [L676] int systemActive = 1; [L134] int retValue_acc ; [L135] int tmp ; [L890] int retValue_acc ; [L893] retValue_acc = 1 [L894] return (retValue_acc); [L141] tmp = valid_product() [L143] COND TRUE \read(tmp) [L164] switchedOnBeforeTS = 0 [L900] int splverifierCounter ; [L901] int tmp ; [L902] int tmp___0 ; [L903] int tmp___1 ; [L904] int tmp___2 ; [L907] splverifierCounter = 0 Loop: [L909] COND TRUE 1 [L911] COND TRUE splverifierCounter < 4 [L917] tmp = __VERIFIER_nondet_int() [L919] COND FALSE !(\read(tmp)) [L927] tmp___0 = __VERIFIER_nondet_int() [L929] COND FALSE !(\read(tmp___0)) [L937] tmp___2 = __VERIFIER_nondet_int() [L939] COND TRUE \read(tmp___2) [L859] systemActive = 1 [L792] int retValue_acc ; [L795] retValue_acc = pumpRunning [L796] return (retValue_acc); [L173] switchedOnBeforeTS = isPumpRunning() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L714] int tmp ; [L717] COND TRUE ! pumpRunning [L837] int retValue_acc ; [L838] int tmp ; [L839] int tmp___0 ; [L658] int retValue_acc ; [L661] COND TRUE waterLevel < 2 [L662] retValue_acc = 1 [L663] return (retValue_acc); [L843] tmp = isHighWaterSensorDry() [L845] COND TRUE \read(tmp) [L846] tmp___0 = 0 [L850] retValue_acc = tmp___0 [L851] return (retValue_acc); [L719] tmp = isHighWaterLevel() [L721] COND FALSE !(\read(tmp)) [L179] int tmp ; [L180] int tmp___0 ; [L649] int retValue_acc ; [L652] retValue_acc = waterLevel [L653] return (retValue_acc); [L184] tmp = getWaterLevel() [L186] COND TRUE tmp != 2 [L792] int retValue_acc ; [L795] retValue_acc = pumpRunning [L796] return (retValue_acc); [L188] tmp___0 = isPumpRunning() [L190] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...