./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/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 d9de6d80b6c7c2293239cef108d51b68cac5001a .............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 14:30:18,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:30:18,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:30:18,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:30:18,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:30:18,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:30:18,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:30:18,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:30:18,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:30:18,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:30:18,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:30:18,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:30:18,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:30:18,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:30:18,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:30:18,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:30:18,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:30:18,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:30:18,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:30:18,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:30:18,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:30:18,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:30:18,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:30:18,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:30:18,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:30:18,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:30:18,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:30:18,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:30:18,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:30:18,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:30:18,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:30:18,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:30:18,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:30:18,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:30:18,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:30:18,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:30:18,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:30:18,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:30:18,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:30:18,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:30:18,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:30:18,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:30:18,453 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:30:18,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:30:18,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:30:18,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:30:18,454 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:30:18,454 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:30:18,454 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:30:18,454 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:30:18,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:30:18,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:30:18,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:30:18,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:30:18,456 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:30:18,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:30:18,456 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:30:18,456 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:30:18,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:30:18,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:30:18,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:30:18,457 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:30:18,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:30:18,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:30:18,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:30:18,457 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:30:18,458 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:30:18,458 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_b696550d-dd4d-490e-9661-6dc2167b8342/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 -> d9de6d80b6c7c2293239cef108d51b68cac5001a [2019-12-07 14:30:18,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:30:18,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:30:18,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:30:18,571 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:30:18,571 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:30:18,571 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c [2019-12-07 14:30:18,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/data/279b8a732/a7912de6ab8f48d8b233e6583e225062/FLAGd178fa4b6 [2019-12-07 14:30:19,039 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:30:19,040 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c [2019-12-07 14:30:19,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/data/279b8a732/a7912de6ab8f48d8b233e6583e225062/FLAGd178fa4b6 [2019-12-07 14:30:19,059 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/data/279b8a732/a7912de6ab8f48d8b233e6583e225062 [2019-12-07 14:30:19,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:30:19,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:30:19,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:30:19,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:30:19,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:30:19,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19, skipping insertion in model container [2019-12-07 14:30:19,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:30:19,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:30:19,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:30:19,326 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:30:19,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:30:19,394 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:30:19,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19 WrapperNode [2019-12-07 14:30:19,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:30:19,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:30:19,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:30:19,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:30:19,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:30:19,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:30:19,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:30:19,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:30:19,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... [2019-12-07 14:30:19,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:30:19,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:30:19,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:30:19,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:30:19,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/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 [2019-12-07 14:30:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:30:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 14:30:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:30:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:30:19,899 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:30:19,899 INFO L287 CfgBuilder]: Removed 112 assume(true) statements. [2019-12-07 14:30:19,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:30:19 BoogieIcfgContainer [2019-12-07 14:30:19,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:30:19,901 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:30:19,901 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:30:19,903 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:30:19,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:30:19,903 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:30:19" (1/3) ... [2019-12-07 14:30:19,904 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c5cb045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:30:19, skipping insertion in model container [2019-12-07 14:30:19,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:30:19,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:30:19" (2/3) ... [2019-12-07 14:30:19,904 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c5cb045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:30:19, skipping insertion in model container [2019-12-07 14:30:19,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:30:19,905 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:30:19" (3/3) ... [2019-12-07 14:30:19,906 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product18.cil.c [2019-12-07 14:30:19,933 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:30:19,933 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:30:19,933 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:30:19,934 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:30:19,934 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:30:19,934 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:30:19,934 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:30:19,934 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:30:19,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-12-07 14:30:19,961 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-12-07 14:30:19,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:30:19,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:30:19,967 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:19,967 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:19,967 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:30:19,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-12-07 14:30:19,971 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-12-07 14:30:19,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:30:19,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:30:19,971 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:19,972 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:19,975 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);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(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 60#L319true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 65#L327true main_#t~ret24 := valid_product_#res;main_~tmp~3 := main_#t~ret24;havoc main_#t~ret24; 10#L416true assume 0 != main_~tmp~3; 19#L391true ~switchedOnBeforeTS~0 := 0; 77#L437true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L458-1true [2019-12-07 14:30:19,975 INFO L796 eck$LassoCheckResult]: Loop: 33#L458-1true assume !false; 67#L56true assume test_~splverifierCounter~0 < 4; 81#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 18#L65true assume !(0 != test_~tmp~0); 17#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 79#L75true assume !(0 != test_~tmp___0~0); 78#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 62#L85true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 51#L93-2true havoc __utac_acc__Specification5_spec__2_#t~ret25;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 70#L217true __utac_acc__Specification5_spec__2_#t~ret25 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25;havoc __utac_acc__Specification5_spec__2_#t~ret25; 61#L447true assume !(0 != ~pumpRunning~0); 47#L132true assume !(0 != ~systemActive~0); 39#L139true havoc __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 3#L921true __utac_acc__Specification5_spec__3_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret26;havoc __utac_acc__Specification5_spec__3_#t~ret26; 58#L458true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 33#L458-1true [2019-12-07 14:30:19,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:19,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 14:30:19,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:30:19,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552248593] [2019-12-07 14:30:19,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,172 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:30:20,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:20,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1011284045, now seen corresponding path program 1 times [2019-12-07 14:30:20,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:30:20,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160168850] [2019-12-07 14:30:20,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:20,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160168850] [2019-12-07 14:30:20,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:20,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:30:20,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926861449] [2019-12-07 14:30:20,213 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:30:20,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:30:20,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:30:20,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:30:20,224 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 3 states. [2019-12-07 14:30:20,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:20,253 INFO L93 Difference]: Finished difference Result 81 states and 110 transitions. [2019-12-07 14:30:20,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:30:20,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 110 transitions. [2019-12-07 14:30:20,257 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-12-07 14:30:20,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2019-12-07 14:30:20,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2019-12-07 14:30:20,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2019-12-07 14:30:20,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2019-12-07 14:30:20,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:30:20,262 INFO L688 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-12-07 14:30:20,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2019-12-07 14:30:20,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-12-07 14:30:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 14:30:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2019-12-07 14:30:20,282 INFO L711 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-12-07 14:30:20,282 INFO L591 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-12-07 14:30:20,283 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:30:20,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2019-12-07 14:30:20,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-12-07 14:30:20,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:30:20,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:30:20,284 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:20,284 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:20,285 INFO L794 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);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(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 191#L-1 havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 192#L319 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 236#L327 main_#t~ret24 := valid_product_#res;main_~tmp~3 := main_#t~ret24;havoc main_#t~ret24; 185#L416 assume 0 != main_~tmp~3; 186#L391 ~switchedOnBeforeTS~0 := 0; 199#L437 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 215#L458-1 [2019-12-07 14:30:20,285 INFO L796 eck$LassoCheckResult]: Loop: 215#L458-1 assume !false; 216#L56 assume test_~splverifierCounter~0 < 4; 239#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 197#L65 assume !(0 != test_~tmp~0); 195#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 196#L75 assume !(0 != test_~tmp___0~0); 243#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 238#L85 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 227#L93-2 havoc __utac_acc__Specification5_spec__2_#t~ret25;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 228#L217 __utac_acc__Specification5_spec__2_#t~ret25 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25;havoc __utac_acc__Specification5_spec__2_#t~ret25; 237#L447 assume !(0 != ~pumpRunning~0); 190#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 209#L164 assume !(0 != ~pumpRunning~0); 184#L139 havoc __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 171#L921 __utac_acc__Specification5_spec__3_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret26;havoc __utac_acc__Specification5_spec__3_#t~ret26; 172#L458 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 215#L458-1 [2019-12-07 14:30:20,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:20,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 14:30:20,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:30:20,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825261256] [2019-12-07 14:30:20,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,353 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:30:20,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:20,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1258041219, now seen corresponding path program 1 times [2019-12-07 14:30:20,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:30:20,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135072063] [2019-12-07 14:30:20,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,363 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:30:20,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:20,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1083280585, now seen corresponding path program 1 times [2019-12-07 14:30:20,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:30:20,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562986969] [2019-12-07 14:30:20,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:20,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562986969] [2019-12-07 14:30:20,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:20,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:30:20,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077506959] [2019-12-07 14:30:20,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:30:20,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:30:20,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:30:20,508 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand 5 states. [2019-12-07 14:30:20,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:20,615 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2019-12-07 14:30:20,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:30:20,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2019-12-07 14:30:20,619 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2019-12-07 14:30:20,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2019-12-07 14:30:20,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2019-12-07 14:30:20,622 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2019-12-07 14:30:20,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2019-12-07 14:30:20,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:30:20,623 INFO L688 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2019-12-07 14:30:20,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2019-12-07 14:30:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2019-12-07 14:30:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-12-07 14:30:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2019-12-07 14:30:20,632 INFO L711 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2019-12-07 14:30:20,632 INFO L591 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2019-12-07 14:30:20,632 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:30:20,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2019-12-07 14:30:20,633 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2019-12-07 14:30:20,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:30:20,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:30:20,633 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:20,634 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:20,634 INFO L794 eck$LassoCheckResult]: Stem: 519#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);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(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 489#L-1 havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 490#L319 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 543#L327 main_#t~ret24 := valid_product_#res;main_~tmp~3 := main_#t~ret24;havoc main_#t~ret24; 485#L416 assume 0 != main_~tmp~3; 486#L391 ~switchedOnBeforeTS~0 := 0; 499#L437 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 515#L458-1 [2019-12-07 14:30:20,634 INFO L796 eck$LassoCheckResult]: Loop: 515#L458-1 assume !false; 516#L56 assume test_~splverifierCounter~0 < 4; 548#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 554#L65 assume !(0 != test_~tmp~0); 611#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 610#L75 assume !(0 != test_~tmp___0~0); 608#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 607#L85 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 605#L93-2 havoc __utac_acc__Specification5_spec__2_#t~ret25;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 604#L217 __utac_acc__Specification5_spec__2_#t~ret25 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25;havoc __utac_acc__Specification5_spec__2_#t~ret25; 603#L447 assume !(0 != ~pumpRunning~0); 602#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 596#L164 assume !(0 != ~pumpRunning~0); 521#L139 havoc __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 471#L921 __utac_acc__Specification5_spec__3_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret26;havoc __utac_acc__Specification5_spec__3_#t~ret26; 472#L458 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 540#L217-1 __utac_acc__Specification5_spec__3_#t~ret27 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 529#L462 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 515#L458-1 [2019-12-07 14:30:20,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:20,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 14:30:20,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:30:20,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267170067] [2019-12-07 14:30:20,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,684 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:30:20,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:20,685 INFO L82 PathProgramCache]: Analyzing trace with hash 2091787166, now seen corresponding path program 1 times [2019-12-07 14:30:20,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:30:20,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001784074] [2019-12-07 14:30:20,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,694 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:30:20,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:20,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1650542436, now seen corresponding path program 1 times [2019-12-07 14:30:20,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:30:20,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258211299] [2019-12-07 14:30:20,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:30:20,744 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:30:44,146 WARN L192 SmtUtils]: Spent 23.29 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 14:30:55,835 WARN L192 SmtUtils]: Spent 11.68 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 14:30:55,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:30:55 BoogieIcfgContainer [2019-12-07 14:30:55,884 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:30:55,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:30:55,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:30:55,884 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:30:55,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:30:19" (3/4) ... [2019-12-07 14:30:55,886 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 14:30:55,922 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b696550d-dd4d-490e-9661-6dc2167b8342/bin/uautomizer/witness.graphml [2019-12-07 14:30:55,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:30:55,923 INFO L168 Benchmark]: Toolchain (without parser) took 36861.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 942.5 MB in the beginning and 988.8 MB in the end (delta: -46.3 MB). Peak memory consumption was 95.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:55,923 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:30:55,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 937.2 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:55,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:55,924 INFO L168 Benchmark]: Boogie Preprocessor took 25.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:30:55,925 INFO L168 Benchmark]: RCFGBuilder took 429.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:55,925 INFO L168 Benchmark]: BuchiAutomizer took 35983.03 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.0 GB in the beginning and 991.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 245.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:55,925 INFO L168 Benchmark]: Witness Printer took 38.22 ms. Allocated memory is still 1.2 GB. Free memory was 991.1 MB in the beginning and 988.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:55,927 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 937.2 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 429.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35983.03 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.0 GB in the beginning and 991.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 245.7 MB. Max. memory is 11.5 GB. * Witness Printer took 38.22 ms. Allocated memory is still 1.2 GB. Free memory was 991.1 MB in the beginning and 988.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 35.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 263 SDtfs, 426 SDslu, 298 SDs, 0 SdLazy, 85 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3440} State at position 1 is {NULL=3448, NULL=0, NULL=0, NULL=0, NULL=13147, NULL=0, retValue_acc=1, NULL=3440, NULL=3450, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2572b3f4=0, NULL=3445, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@242797a3=49, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@492ac5af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69bfa66e=0, NULL=3447, NULL=8684, NULL=8686, NULL=13154, methaneLevelCritical=0, NULL=0, tmp=1, NULL=0, NULL=3442, tmp___1=0, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=3441, \result=0, NULL=3444, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=13152, NULL=0, NULL=3446, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ed17407=0, tmp___0=0, NULL=0, NULL=13156, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2641cbe6=0, tmp___0=0, NULL=8683, NULL=13150, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d220bea=0, NULL=8685, tmp=1, NULL=0, NULL=13151, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3443, retValue_acc=1, NULL=0, tmp___2=49, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=3449, NULL=13149, NULL=13155, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54b48f21=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f39bc92=0, retValue_acc=0, NULL=8682, NULL=0, NULL=0, NULL=13148, NULL=0, NULL=13153} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L332] int cleanupTimeShifts = 4; [L431] int switchedOnBeforeTS ; [L649] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L846] int waterLevel = 1; [L847] int methaneLevelCritical = 0; [L407] int retValue_acc ; [L408] int tmp ; [L323] int retValue_acc ; [L326] retValue_acc = 1 [L327] return (retValue_acc); [L414] tmp = valid_product() [L416] COND TRUE \read(tmp) [L436] switchedOnBeforeTS = 0 [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L280] systemActive = 1 [L213] int retValue_acc ; [L216] retValue_acc = pumpRunning [L217] return (retValue_acc); [L445] switchedOnBeforeTS = isPumpRunning() [L132] COND FALSE !(\read(pumpRunning)) [L139] COND TRUE \read(systemActive) [L161] int tmp ; [L164] COND FALSE !(\read(pumpRunning)) [L451] int tmp ; [L452] int tmp___0 ; [L917] int retValue_acc ; [L920] retValue_acc = waterLevel [L921] return (retValue_acc); [L456] tmp = getWaterLevel() [L458] COND TRUE tmp != 2 [L213] int retValue_acc ; [L216] retValue_acc = pumpRunning [L217] return (retValue_acc); [L460] tmp___0 = isPumpRunning() [L462] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...