./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.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_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/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 0e896c9575d2274fe1bd6f66c7235e6d3190661d ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:54:35,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:54:35,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:54:35,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:54:35,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:54:35,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:54:35,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:54:35,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:54:35,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:54:35,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:54:35,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:54:35,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:54:35,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:54:35,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:54:35,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:54:35,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:54:35,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:54:35,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:54:35,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:54:35,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:54:35,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:54:35,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:54:35,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:54:35,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:54:35,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:54:35,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:54:35,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:54:35,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:54:35,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:54:35,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:54:35,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:54:35,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:54:35,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:54:35,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:54:35,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:54:35,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:54:35,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:54:35,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:54:35,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:54:35,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:54:35,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:54:35,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:54:35,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:54:35,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:54:35,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:54:35,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:54:35,294 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:54:35,294 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:54:35,294 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:54:35,295 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:54:35,295 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:54:35,295 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:54:35,296 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:54:35,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:54:35,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:54:35,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:54:35,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:54:35,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:54:35,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:54:35,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:54:35,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:54:35,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:54:35,299 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:54:35,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:54:35,299 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:54:35,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:54:35,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:54:35,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:54:35,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:54:35,300 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:54:35,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:54:35,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:54:35,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:54:35,301 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:54:35,303 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:54:35,303 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_130e744b-6fc9-483c-a25d-ef69a76521de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e896c9575d2274fe1bd6f66c7235e6d3190661d [2020-11-29 18:54:35,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:54:35,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:54:35,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:54:35,623 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:54:35,626 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:54:35,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2020-11-29 18:54:35,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/data/7c5b068ca/5bf3f334d4b145fb9327c073d8bf0300/FLAG395f10e6a [2020-11-29 18:54:36,301 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:54:36,302 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2020-11-29 18:54:36,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/data/7c5b068ca/5bf3f334d4b145fb9327c073d8bf0300/FLAG395f10e6a [2020-11-29 18:54:36,616 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/data/7c5b068ca/5bf3f334d4b145fb9327c073d8bf0300 [2020-11-29 18:54:36,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:54:36,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:54:36,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:54:36,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:54:36,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:54:36,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:54:36" (1/1) ... [2020-11-29 18:54:36,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa9607f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:36, skipping insertion in model container [2020-11-29 18:54:36,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:54:36" (1/1) ... [2020-11-29 18:54:36,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:54:36,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:54:37,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:54:37,022 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:54:37,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:54:37,139 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:54:37,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37 WrapperNode [2020-11-29 18:54:37,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:54:37,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:54:37,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:54:37,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:54:37,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:54:37,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:54:37,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:54:37,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:54:37,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... [2020-11-29 18:54:37,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:54:37,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:54:37,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:54:37,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:54:37,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/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 18:54:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:54:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:54:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:54:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:54:38,505 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:54:38,507 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-11-29 18:54:38,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:38 BoogieIcfgContainer [2020-11-29 18:54:38,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:54:38,513 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:54:38,513 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:54:38,516 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:54:38,517 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:54:38,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:54:36" (1/3) ... [2020-11-29 18:54:38,519 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3daeff1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:54:38, skipping insertion in model container [2020-11-29 18:54:38,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:54:38,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:37" (2/3) ... [2020-11-29 18:54:38,521 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3daeff1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:54:38, skipping insertion in model container [2020-11-29 18:54:38,521 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:54:38,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:38" (3/3) ... [2020-11-29 18:54:38,525 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-11-29 18:54:38,602 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:54:38,602 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:54:38,602 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:54:38,602 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:54:38,603 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:54:38,603 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:54:38,603 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:54:38,603 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:54:38,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states. [2020-11-29 18:54:38,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-29 18:54:38,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:38,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:38,668 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:54:38,669 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:38,669 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:54:38,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states. [2020-11-29 18:54:38,680 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-29 18:54:38,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:38,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:38,685 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:54:38,686 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:38,702 INFO L794 eck$LassoCheckResult]: Stem: 32#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 49#L872true 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; 85#L880true main_#t~ret76 := valid_product_#res;main_~tmp~7 := main_#t~ret76;havoc main_#t~ret76; 55#L836true assume 0 != main_~tmp~7; 70#L810true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 87#L902-1true [2020-11-29 18:54:38,703 INFO L796 eck$LassoCheckResult]: Loop: 87#L902-1true assume !false; 79#L423true assume test_~splverifierCounter~0 < 4; 14#L424true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 35#L432true assume !(0 != test_~tmp~3); 36#L432-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 23#L442true assume !(0 != test_~tmp___0~0); 4#L442-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 57#L452true assume 0 != test_~tmp___2~0; 33#L458-2true assume !(0 != ~pumpRunning~0); 6#L588true assume !(0 != ~systemActive~0); 76#L595true havoc __utac_acc__Specification1_spec__1_#t~ret78, __utac_acc__Specification1_spec__1_#t~ret79, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 65#L525-1true __utac_acc__Specification1_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret78;havoc __utac_acc__Specification1_spec__1_#t~ret78; 82#L902true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 87#L902-1true [2020-11-29 18:54:38,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:38,711 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 18:54:38,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:38,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661669976] [2020-11-29 18:54:38,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:39,078 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:39,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:39,323 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:39,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1681191228, now seen corresponding path program 1 times [2020-11-29 18:54:39,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:39,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742966258] [2020-11-29 18:54:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:39,347 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:39,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:39,375 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:39,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:39,388 INFO L82 PathProgramCache]: Analyzing trace with hash 33087710, now seen corresponding path program 1 times [2020-11-29 18:54:39,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:39,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462093197] [2020-11-29 18:54:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:39,569 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 18:54:39,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462093197] [2020-11-29 18:54:39,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:39,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:54:39,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318890320] [2020-11-29 18:54:39,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:39,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:54:39,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:54:39,717 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 6 states. [2020-11-29 18:54:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:39,976 INFO L93 Difference]: Finished difference Result 84 states and 115 transitions. [2020-11-29 18:54:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:54:39,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 115 transitions. [2020-11-29 18:54:39,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 18:54:40,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2020-11-29 18:54:40,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2020-11-29 18:54:40,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2020-11-29 18:54:40,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2020-11-29 18:54:40,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:54:40,006 INFO L691 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-29 18:54:40,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2020-11-29 18:54:40,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-29 18:54:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-29 18:54:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-11-29 18:54:40,051 INFO L714 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-29 18:54:40,051 INFO L594 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-29 18:54:40,051 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:54:40,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2020-11-29 18:54:40,059 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 18:54:40,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:40,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:40,063 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:54:40,063 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:40,063 INFO L794 eck$LassoCheckResult]: Stem: 224#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 203#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 204#L872 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; 247#L880 main_#t~ret76 := valid_product_#res;main_~tmp~7 := main_#t~ret76;havoc main_#t~ret76; 250#L836 assume 0 != main_~tmp~7; 251#L810 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 201#L902-1 [2020-11-29 18:54:40,065 INFO L796 eck$LassoCheckResult]: Loop: 201#L902-1 assume !false; 265#L423 assume test_~splverifierCounter~0 < 4; 211#L424 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 212#L432 assume !(0 != test_~tmp~3); 228#L432-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 219#L442 assume !(0 != test_~tmp___0~0); 191#L442-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 192#L452 assume 0 != test_~tmp___2~0; 225#L458-2 assume !(0 != ~pumpRunning~0); 195#L588 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 196#L620 assume !(0 == ~pumpRunning~0); 257#L595 havoc __utac_acc__Specification1_spec__1_#t~ret78, __utac_acc__Specification1_spec__1_#t~ret79, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 258#L525-1 __utac_acc__Specification1_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret78;havoc __utac_acc__Specification1_spec__1_#t~ret78; 259#L902 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 201#L902-1 [2020-11-29 18:54:40,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:40,067 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 18:54:40,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:40,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883367790] [2020-11-29 18:54:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:40,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:40,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:40,250 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:40,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:40,251 INFO L82 PathProgramCache]: Analyzing trace with hash -619089827, now seen corresponding path program 1 times [2020-11-29 18:54:40,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:40,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139451596] [2020-11-29 18:54:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:40,266 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 18:54:40,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139451596] [2020-11-29 18:54:40,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:40,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:54:40,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976352477] [2020-11-29 18:54:40,267 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:54:40,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:40,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:54:40,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:54:40,269 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2020-11-29 18:54:40,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:40,371 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions. [2020-11-29 18:54:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:54:40,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 159 transitions. [2020-11-29 18:54:40,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2020-11-29 18:54:40,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 118 states and 159 transitions. [2020-11-29 18:54:40,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2020-11-29 18:54:40,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2020-11-29 18:54:40,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 159 transitions. [2020-11-29 18:54:40,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:54:40,380 INFO L691 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2020-11-29 18:54:40,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 159 transitions. [2020-11-29 18:54:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-11-29 18:54:40,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-29 18:54:40,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2020-11-29 18:54:40,390 INFO L714 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2020-11-29 18:54:40,390 INFO L594 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2020-11-29 18:54:40,390 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:54:40,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 159 transitions. [2020-11-29 18:54:40,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2020-11-29 18:54:40,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:40,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:40,393 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:54:40,393 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:40,393 INFO L794 eck$LassoCheckResult]: Stem: 424#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 403#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 404#L872 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; 443#L880 main_#t~ret76 := valid_product_#res;main_~tmp~7 := main_#t~ret76;havoc main_#t~ret76; 452#L836 assume 0 != main_~tmp~7; 453#L810 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 402#L902-1 [2020-11-29 18:54:40,394 INFO L796 eck$LassoCheckResult]: Loop: 402#L902-1 assume !false; 472#L423 assume test_~splverifierCounter~0 < 4; 409#L424 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 410#L432 assume !(0 != test_~tmp~3); 427#L432-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 417#L442 assume !(0 != test_~tmp___0~0); 390#L442-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 391#L452 assume 0 != test_~tmp___2~0; 425#L458-2 assume !(0 != ~pumpRunning~0); 396#L588 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 397#L620 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 463#L565 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 419#L570 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 420#L740 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 428#L740-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 421#L746 processEnvironment_#t~ret56 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret56;havoc processEnvironment_#t~ret56; 422#L624 assume !(0 != processEnvironment_~tmp~4); 470#L595 havoc __utac_acc__Specification1_spec__1_#t~ret78, __utac_acc__Specification1_spec__1_#t~ret79, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 464#L525-1 __utac_acc__Specification1_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret78;havoc __utac_acc__Specification1_spec__1_#t~ret78; 465#L902 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 402#L902-1 [2020-11-29 18:54:40,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:40,394 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 18:54:40,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:40,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217420119] [2020-11-29 18:54:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:40,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:40,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:40,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:40,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash -21695255, now seen corresponding path program 1 times [2020-11-29 18:54:40,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:40,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946091685] [2020-11-29 18:54:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:40,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:40,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:40,601 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:40,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:40,603 INFO L82 PathProgramCache]: Analyzing trace with hash -6983281, now seen corresponding path program 1 times [2020-11-29 18:54:40,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:40,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408759232] [2020-11-29 18:54:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:40,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:40,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:40,734 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:40,922 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 18:56:13,792 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 18:57:14,884 WARN L193 SmtUtils]: Spent 1.02 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 18:57:15,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:57:15 BoogieIcfgContainer [2020-11-29 18:57:15,181 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:57:15,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:57:15,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:57:15,182 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:57:15,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:38" (3/4) ... [2020-11-29 18:57:15,186 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:57:15,255 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_130e744b-6fc9-483c-a25d-ef69a76521de/bin/uautomizer/witness.graphml [2020-11-29 18:57:15,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:57:15,257 INFO L168 Benchmark]: Toolchain (without parser) took 158636.76 ms. Allocated memory was 88.1 MB in the beginning and 134.2 MB in the end (delta: 46.1 MB). Free memory was 56.8 MB in the beginning and 93.7 MB in the end (delta: -36.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:15,258 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 88.1 MB. Free memory was 45.7 MB in the beginning and 45.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:57:15,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.18 ms. Allocated memory is still 88.1 MB. Free memory was 56.7 MB in the beginning and 54.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:15,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.11 ms. Allocated memory is still 88.1 MB. Free memory was 54.8 MB in the beginning and 51.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:15,260 INFO L168 Benchmark]: Boogie Preprocessor took 77.42 ms. Allocated memory is still 88.1 MB. Free memory was 51.9 MB in the beginning and 49.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:15,261 INFO L168 Benchmark]: RCFGBuilder took 1178.48 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 49.7 MB in the beginning and 50.1 MB in the end (delta: -400.1 kB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:15,262 INFO L168 Benchmark]: BuchiAutomizer took 156668.42 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 50.1 MB in the beginning and 95.8 MB in the end (delta: -45.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:15,262 INFO L168 Benchmark]: Witness Printer took 73.59 ms. Allocated memory is still 134.2 MB. Free memory was 95.8 MB in the beginning and 93.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:57:15,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 88.1 MB. Free memory was 45.7 MB in the beginning and 45.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.18 ms. Allocated memory is still 88.1 MB. Free memory was 56.7 MB in the beginning and 54.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.11 ms. Allocated memory is still 88.1 MB. Free memory was 54.8 MB in the beginning and 51.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.42 ms. Allocated memory is still 88.1 MB. Free memory was 51.9 MB in the beginning and 49.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1178.48 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 49.7 MB in the beginning and 50.1 MB in the end (delta: -400.1 kB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 156668.42 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 50.1 MB in the beginning and 95.8 MB in the end (delta: -45.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. * Witness Printer took 73.59 ms. Allocated memory is still 134.2 MB. Free memory was 95.8 MB in the beginning and 93.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 156.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 155.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 216 SDtfs, 427 SDslu, 50 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 422]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=38, NULL=24, NULL=0, NULL=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3408ad17=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@611f0f39=90, retValue_acc=0, NULL=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51b4e7df=0, NULL=31, methaneLevelCritical=0, NULL=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78e88c31=0, tmp___0=0, retValue_acc=1, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=29, tmp___1=0, NULL=41, tmp___0=0, NULL=0, NULL=0, NULL=27, NULL=47, NULL=43, cleanupTimeShifts=4, NULL=36, NULL=42, NULL=49, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cc45e15=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38fe36b=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=48, tmp___0=0, NULL=51, NULL=0, NULL=0, NULL=26, \result=1, head=0, pumpRunning=0, NULL=46, \result=0, retValue_acc=1, NULL=34, NULL=0, NULL=39, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=45, \result=1, NULL=0, tmp=0, NULL=0, NULL=32, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@153c0013=0, tmp___2=90, NULL=44, NULL=25, tmp=1, splverifierCounter=0, NULL=0, \result=0, NULL=30, NULL=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c0b7339=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@471b541c=0, head=0, tmp=0, NULL=0, NULL=0, NULL=35, NULL=0, NULL=0, NULL=52, NULL=50} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L482] int waterLevel = 1; [L483] int methaneLevelCritical = 0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L751] int cleanupTimeShifts = 4; [L827] int retValue_acc ; [L828] int tmp ; [L876] int retValue_acc ; [L879] retValue_acc = 1 [L880] return (retValue_acc); [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 Loop: [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L588] COND FALSE !(\read(pumpRunning)) [L595] COND TRUE \read(systemActive) [L617] int tmp ; [L620] COND TRUE ! pumpRunning [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L562] int retValue_acc ; [L565] COND TRUE waterLevel < 2 [L566] retValue_acc = 1 [L567] return (retValue_acc); [L738] tmp = isHighWaterSensorDry() [L740] COND TRUE \read(tmp) [L741] tmp___0 = 0 [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); [L622] tmp = isHighWaterLevel() [L624] COND FALSE !(\read(tmp)) [L895] int tmp ; [L896] int tmp___0 ; [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); [L900] tmp = isMethaneLevelCritical() [L902] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...