./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.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_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/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 107fce0473a360d3222152377d740ad2acd97172 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 19:32:35,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:32:35,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:32:35,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:32:35,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:32:35,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:32:35,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:32:35,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:32:35,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:32:35,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:32:35,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:32:35,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:32:35,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:32:35,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:32:35,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:32:35,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:32:35,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:32:35,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:32:35,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:32:35,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:32:35,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:32:35,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:32:35,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:32:35,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:32:35,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:32:35,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:32:35,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:32:35,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:32:35,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:32:35,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:32:35,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:32:35,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:32:35,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:32:35,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:32:35,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:32:35,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:32:35,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:32:35,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:32:35,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:32:35,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:32:35,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:32:35,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:32:35,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:32:35,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:32:35,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:32:35,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:32:35,416 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:32:35,417 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:32:35,417 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:32:35,417 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:32:35,418 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:32:35,418 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:32:35,420 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:32:35,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:32:35,420 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:32:35,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:32:35,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:32:35,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:32:35,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:32:35,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:32:35,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:32:35,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:32:35,423 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:32:35,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:32:35,423 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:32:35,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:32:35,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:32:35,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:32:35,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:32:35,425 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:32:35,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:32:35,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:32:35,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:32:35,428 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:32:35,430 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:32:35,430 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_266008b4-f36e-439e-8b7b-723866cd94a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 107fce0473a360d3222152377d740ad2acd97172 [2020-11-29 19:32:35,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:32:35,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:32:35,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:32:35,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:32:35,816 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:32:35,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2020-11-29 19:32:35,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/data/637eefd1d/74cbf4c2d2674ecba57a61db88ab65d0/FLAG0786001a8 [2020-11-29 19:32:36,541 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:32:36,542 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2020-11-29 19:32:36,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/data/637eefd1d/74cbf4c2d2674ecba57a61db88ab65d0/FLAG0786001a8 [2020-11-29 19:32:36,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/data/637eefd1d/74cbf4c2d2674ecba57a61db88ab65d0 [2020-11-29 19:32:36,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:32:36,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:32:36,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:32:36,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:32:36,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:32:36,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:36,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606b7ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:36, skipping insertion in model container [2020-11-29 19:32:36,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:36" (1/1) ... [2020-11-29 19:32:36,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:32:36,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:32:37,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:32:37,258 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:32:37,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:32:37,394 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:32:37,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37 WrapperNode [2020-11-29 19:32:37,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:32:37,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:32:37,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:32:37,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:32:37,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:32:37,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:32:37,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:32:37,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:32:37,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... [2020-11-29 19:32:37,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:32:37,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:32:37,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:32:37,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:32:37,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/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 19:32:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:32:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:32:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:32:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:32:39,042 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:32:39,046 INFO L298 CfgBuilder]: Removed 182 assume(true) statements. [2020-11-29 19:32:39,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:39 BoogieIcfgContainer [2020-11-29 19:32:39,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:32:39,051 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:32:39,051 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:32:39,055 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:32:39,056 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:32:39,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:32:36" (1/3) ... [2020-11-29 19:32:39,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cfba387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:32:39, skipping insertion in model container [2020-11-29 19:32:39,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:32:39,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:37" (2/3) ... [2020-11-29 19:32:39,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cfba387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:32:39, skipping insertion in model container [2020-11-29 19:32:39,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:32:39,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:39" (3/3) ... [2020-11-29 19:32:39,062 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2020-11-29 19:32:39,132 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:32:39,132 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:32:39,132 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:32:39,132 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:32:39,132 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:32:39,132 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:32:39,133 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:32:39,133 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:32:39,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2020-11-29 19:32:39,184 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-29 19:32:39,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:32:39,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:32:39,195 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:39,195 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:39,195 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:32:39,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2020-11-29 19:32:39,206 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-29 19:32:39,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:32:39,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:32:39,208 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:39,208 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:39,214 INFO L794 eck$LassoCheckResult]: Stem: 114#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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 12#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 50#L1000true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 73#L1008true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 129#L500true assume 0 != main_~tmp~3; 77#L471true ~switchedOnBeforeTS~0 := 0; 115#L531true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 20#L552-1true [2020-11-29 19:32:39,214 INFO L796 eck$LassoCheckResult]: Loop: 20#L552-1true assume !false; 34#L695true assume test_~splverifierCounter~0 < 4; 125#L696true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 127#L704true assume !(0 != test_~tmp~5); 128#L704-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 47#L714true assume !(0 != test_~tmp___0~1); 37#L714-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 82#L724true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 120#L732-1true havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 60#L876true __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 17#L541true assume !(0 != ~pumpRunning~0); 117#L765true assume !(0 != ~systemActive~0); 30#L772true havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 5#L654true __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 16#L552true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 20#L552-1true [2020-11-29 19:32:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:39,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:32:39,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:39,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248374662] [2020-11-29 19:32:39,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:39,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:39,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:39,775 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:32:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:39,780 INFO L82 PathProgramCache]: Analyzing trace with hash 677042296, now seen corresponding path program 1 times [2020-11-29 19:32:39,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:39,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725202898] [2020-11-29 19:32:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:32:39,882 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 19:32:39,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725202898] [2020-11-29 19:32:39,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:32:39,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:32:39,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675183590] [2020-11-29 19:32:39,893 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:32:39,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:32:39,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:32:39,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:32:39,916 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2020-11-29 19:32:40,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:32:40,026 INFO L93 Difference]: Finished difference Result 243 states and 353 transitions. [2020-11-29 19:32:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:32:40,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 353 transitions. [2020-11-29 19:32:40,055 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2020-11-29 19:32:40,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 229 states and 338 transitions. [2020-11-29 19:32:40,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 229 [2020-11-29 19:32:40,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 229 [2020-11-29 19:32:40,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 229 states and 338 transitions. [2020-11-29 19:32:40,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:32:40,084 INFO L691 BuchiCegarLoop]: Abstraction has 229 states and 338 transitions. [2020-11-29 19:32:40,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states and 338 transitions. [2020-11-29 19:32:40,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2020-11-29 19:32:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-11-29 19:32:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 335 transitions. [2020-11-29 19:32:40,163 INFO L714 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2020-11-29 19:32:40,164 INFO L594 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2020-11-29 19:32:40,164 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:32:40,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states and 335 transitions. [2020-11-29 19:32:40,176 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2020-11-29 19:32:40,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:32:40,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:32:40,178 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:40,179 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:40,179 INFO L794 eck$LassoCheckResult]: Stem: 506#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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 398#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 399#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 452#L1008 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 475#L500 assume 0 != main_~tmp~3; 477#L471 ~switchedOnBeforeTS~0 := 0; 478#L531 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 507#L552-1 [2020-11-29 19:32:40,179 INFO L796 eck$LassoCheckResult]: Loop: 507#L552-1 assume !false; 541#L695 assume test_~splverifierCounter~0 < 4; 511#L696 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 512#L704 assume !(0 != test_~tmp~5); 514#L704-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 446#L714 assume !(0 != test_~tmp___0~1); 435#L714-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 436#L724 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 484#L732-1 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 588#L876 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 586#L541 assume !(0 != ~pumpRunning~0); 585#L765 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 583#L823 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 582#L797-1 assume !(0 == ~pumpRunning~0); 428#L772 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 386#L654 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 387#L552 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 507#L552-1 [2020-11-29 19:32:40,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:40,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:32:40,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:40,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367330733] [2020-11-29 19:32:40,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:40,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:40,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:40,438 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:32:40,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:40,439 INFO L82 PathProgramCache]: Analyzing trace with hash -543108202, now seen corresponding path program 1 times [2020-11-29 19:32:40,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:40,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240414557] [2020-11-29 19:32:40,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:32:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:32:40,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240414557] [2020-11-29 19:32:40,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:32:40,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:32:40,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870342439] [2020-11-29 19:32:40,458 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:32:40,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:32:40,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:32:40,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:32:40,459 INFO L87 Difference]: Start difference. First operand 227 states and 335 transitions. cyclomatic complexity: 111 Second operand 3 states. [2020-11-29 19:32:40,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:32:40,845 INFO L93 Difference]: Finished difference Result 326 states and 457 transitions. [2020-11-29 19:32:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:32:40,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 457 transitions. [2020-11-29 19:32:40,851 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2020-11-29 19:32:40,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 326 states and 457 transitions. [2020-11-29 19:32:40,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2020-11-29 19:32:40,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2020-11-29 19:32:40,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 457 transitions. [2020-11-29 19:32:40,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:32:40,866 INFO L691 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2020-11-29 19:32:40,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 457 transitions. [2020-11-29 19:32:40,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2020-11-29 19:32:40,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-11-29 19:32:40,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 457 transitions. [2020-11-29 19:32:40,912 INFO L714 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2020-11-29 19:32:40,912 INFO L594 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2020-11-29 19:32:40,912 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:32:40,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 457 transitions. [2020-11-29 19:32:40,916 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2020-11-29 19:32:40,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:32:40,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:32:40,917 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:40,917 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:40,917 INFO L794 eck$LassoCheckResult]: Stem: 1068#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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 956#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 957#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1015#L1008 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1040#L500 assume 0 != main_~tmp~3; 1042#L471 ~switchedOnBeforeTS~0 := 0; 1043#L531 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 965#L552-1 [2020-11-29 19:32:40,918 INFO L796 eck$LassoCheckResult]: Loop: 965#L552-1 assume !false; 972#L695 assume test_~splverifierCounter~0 < 4; 993#L696 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 1256#L704 assume !(0 != test_~tmp~5); 1254#L704-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 1253#L714 assume !(0 != test_~tmp___0~1); 1251#L714-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 1249#L724 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1049#L732-1 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1244#L876 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 966#L541 assume !(0 != ~pumpRunning~0); 967#L765 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1064#L823 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 975#L797-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret79, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 976#L662-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 996#L667-1 isHighWaterLevel_#t~ret79 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret79;havoc isHighWaterLevel_#t~ret79; 1020#L925-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 1041#L925-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1024#L931-1 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 1025#L801-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 987#L772 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 945#L654 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 946#L552 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 965#L552-1 [2020-11-29 19:32:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:40,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:32:40,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:40,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065695477] [2020-11-29 19:32:40,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:40,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:41,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:41,072 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:32:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:41,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1971117566, now seen corresponding path program 1 times [2020-11-29 19:32:41,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:41,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689510839] [2020-11-29 19:32:41,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:32:41,112 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 19:32:41,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689510839] [2020-11-29 19:32:41,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:32:41,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:32:41,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372236698] [2020-11-29 19:32:41,114 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:32:41,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:32:41,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:32:41,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:32:41,115 INFO L87 Difference]: Start difference. First operand 326 states and 457 transitions. cyclomatic complexity: 134 Second operand 5 states. [2020-11-29 19:32:41,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:32:41,424 INFO L93 Difference]: Finished difference Result 902 states and 1237 transitions. [2020-11-29 19:32:41,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:32:41,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 902 states and 1237 transitions. [2020-11-29 19:32:41,437 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 599 [2020-11-29 19:32:41,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 902 states to 902 states and 1237 transitions. [2020-11-29 19:32:41,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 902 [2020-11-29 19:32:41,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 902 [2020-11-29 19:32:41,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 902 states and 1237 transitions. [2020-11-29 19:32:41,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:32:41,461 INFO L691 BuchiCegarLoop]: Abstraction has 902 states and 1237 transitions. [2020-11-29 19:32:41,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states and 1237 transitions. [2020-11-29 19:32:41,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 645. [2020-11-29 19:32:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-11-29 19:32:41,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 879 transitions. [2020-11-29 19:32:41,506 INFO L714 BuchiCegarLoop]: Abstraction has 645 states and 879 transitions. [2020-11-29 19:32:41,506 INFO L594 BuchiCegarLoop]: Abstraction has 645 states and 879 transitions. [2020-11-29 19:32:41,506 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:32:41,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 645 states and 879 transitions. [2020-11-29 19:32:41,517 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 462 [2020-11-29 19:32:41,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:32:41,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:32:41,522 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:41,523 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:32:41,523 INFO L794 eck$LassoCheckResult]: Stem: 2327#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~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2202#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2203#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 2269#L1008 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 2294#L500 assume 0 != main_~tmp~3; 2296#L471 ~switchedOnBeforeTS~0 := 0; 2297#L531 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2219#L552-1 [2020-11-29 19:32:41,523 INFO L796 eck$LassoCheckResult]: Loop: 2219#L552-1 assume !false; 2220#L695 assume test_~splverifierCounter~0 < 4; 2244#L696 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 2538#L704 assume !(0 != test_~tmp~5); 2537#L704-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 2536#L714 assume !(0 != test_~tmp___0~1); 2534#L714-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 2533#L724 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2330#L732-1 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 2776#L876 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 2216#L541 assume !(0 != ~pumpRunning~0); 2217#L765 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2322#L823 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2223#L797-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret79, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2224#L662-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2247#L667-1 isHighWaterLevel_#t~ret79 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret79;havoc isHighWaterLevel_#t~ret79; 2276#L925-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 2295#L925-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 2280#L931-1 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 2281#L801-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 2236#L772 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 2237#L654 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 2211#L552 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 2212#L876-1 __utac_acc__Specification5_spec__3_#t~ret45 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 2286#L556 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 2219#L552-1 [2020-11-29 19:32:41,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:41,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 19:32:41,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:41,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800073771] [2020-11-29 19:32:41,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:41,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:41,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:41,643 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:32:41,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:41,644 INFO L82 PathProgramCache]: Analyzing trace with hash -163417155, now seen corresponding path program 1 times [2020-11-29 19:32:41,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:41,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021390300] [2020-11-29 19:32:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:41,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:41,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:41,661 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:32:41,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:32:41,662 INFO L82 PathProgramCache]: Analyzing trace with hash -226843337, now seen corresponding path program 1 times [2020-11-29 19:32:41,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:32:41,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575257954] [2020-11-29 19:32:41,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:32:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:41,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:32:41,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:32:41,775 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:32:42,000 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-29 19:34:14,093 WARN L193 SmtUtils]: Spent 1.53 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:35:14,151 WARN L193 SmtUtils]: Spent 1.00 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:35:14,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:35:14 BoogieIcfgContainer [2020-11-29 19:35:14,400 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:35:14,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:35:14,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:35:14,401 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:35:14,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:39" (3/4) ... [2020-11-29 19:35:14,405 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:35:14,475 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_266008b4-f36e-439e-8b7b-723866cd94a3/bin/uautomizer/witness.graphml [2020-11-29 19:35:14,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:35:14,477 INFO L168 Benchmark]: Toolchain (without parser) took 157661.04 ms. Allocated memory was 111.1 MB in the beginning and 180.4 MB in the end (delta: 69.2 MB). Free memory was 82.7 MB in the beginning and 92.3 MB in the end (delta: -9.6 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:14,477 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 111.1 MB. Free memory was 70.1 MB in the beginning and 70.1 MB in the end (delta: 55.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:35:14,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.56 ms. Allocated memory is still 111.1 MB. Free memory was 82.5 MB in the beginning and 74.9 MB in the end (delta: 7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:14,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.30 ms. Allocated memory is still 111.1 MB. Free memory was 74.9 MB in the beginning and 71.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:14,480 INFO L168 Benchmark]: Boogie Preprocessor took 55.46 ms. Allocated memory is still 111.1 MB. Free memory was 71.0 MB in the beginning and 68.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:14,480 INFO L168 Benchmark]: RCFGBuilder took 1505.55 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 68.5 MB in the beginning and 106.7 MB in the end (delta: -38.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:14,481 INFO L168 Benchmark]: BuchiAutomizer took 155349.01 ms. Allocated memory was 140.5 MB in the beginning and 180.4 MB in the end (delta: 39.8 MB). Free memory was 106.7 MB in the beginning and 94.4 MB in the end (delta: 12.2 MB). Peak memory consumption was 106.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:14,482 INFO L168 Benchmark]: Witness Printer took 74.58 ms. Allocated memory is still 180.4 MB. Free memory was 94.4 MB in the beginning and 92.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:14,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 111.1 MB. Free memory was 70.1 MB in the beginning and 70.1 MB in the end (delta: 55.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 578.56 ms. Allocated memory is still 111.1 MB. Free memory was 82.5 MB in the beginning and 74.9 MB in the end (delta: 7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.30 ms. Allocated memory is still 111.1 MB. Free memory was 74.9 MB in the beginning and 71.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.46 ms. Allocated memory is still 111.1 MB. Free memory was 71.0 MB in the beginning and 68.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1505.55 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 68.5 MB in the beginning and 106.7 MB in the end (delta: -38.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 155349.01 ms. Allocated memory was 140.5 MB in the beginning and 180.4 MB in the end (delta: 39.8 MB). Free memory was 106.7 MB in the beginning and 94.4 MB in the end (delta: 12.2 MB). Peak memory consumption was 106.7 MB. Max. memory is 16.1 GB. * Witness Printer took 74.58 ms. Allocated memory is still 180.4 MB. Free memory was 94.4 MB in the beginning and 92.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 645 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 155.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 154.0s. Construction of modules took 0.5s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 259 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 645 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 620 SDtfs, 861 SDslu, 849 SDs, 0 SdLazy, 145 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 694]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20289} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40aa0c4d=0, NULL=0, NULL=0, NULL=20314, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6805d3c5=0, NULL=20289, NULL=20307, retValue_acc=1, methaneLevelCritical=0, tmp=0, NULL=0, NULL=20304, tmp___1=0, NULL=20290, NULL=0, NULL=20299, NULL=20305, cleanupTimeShifts=4, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=20302, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, tmp=1, NULL=20292, tmp___0=0, NULL=20296, retValue_acc=1, NULL=20317, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@468cbcb=0, head=0, NULL=0, NULL=0, NULL=20298, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f40e3b9=0, NULL=0, retValue_acc=0, NULL=20300, NULL=20313, NULL=20316, tmp___0=0, NULL=20303, tmp=1, NULL=0, NULL=0, NULL=20297, NULL=20291, switchedOnBeforeTS=0, NULL=20293, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@478fadb0=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bf57228=0, NULL=20315, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33293294=0, \result=0, NULL=20310, NULL=0, NULL=0, NULL=20309, tmp___0=0, NULL=20306, \result=0, NULL=20301, NULL=0, NULL=20295, NULL=20311, tmp___2=81, splverifierCounter=0, NULL=0, NULL=20294, NULL=20312, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@502ec07=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13e3b13f=81, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5feeefae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4364b287=0, retValue_acc=0, NULL=20308} - 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; [L408] int cleanupTimeShifts = 4; [L525] int switchedOnBeforeTS ; [L579] int waterLevel = 1; [L580] int methaneLevelCritical = 0; [L755] int pumpRunning = 0; [L756] int systemActive = 1; [L491] int retValue_acc ; [L492] int tmp ; [L1004] int retValue_acc ; [L1007] retValue_acc = 1 [L1008] return (retValue_acc); [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L530] switchedOnBeforeTS = 0 [L685] int splverifierCounter ; [L686] int tmp ; [L687] int tmp___0 ; [L688] int tmp___1 ; [L689] int tmp___2 ; [L692] splverifierCounter = 0 Loop: [L694] COND TRUE 1 [L696] COND TRUE splverifierCounter < 4 [L702] tmp = __VERIFIER_nondet_int() [L704] COND FALSE !(\read(tmp)) [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND TRUE \read(tmp___2) [L973] systemActive = 1 [L872] int retValue_acc ; [L875] retValue_acc = pumpRunning [L876] return (retValue_acc); [L539] switchedOnBeforeTS = isPumpRunning() [L765] COND FALSE !(\read(pumpRunning)) [L772] COND TRUE \read(systemActive) [L820] int tmp ; [L823] COND FALSE !(\read(pumpRunning)) [L794] int tmp ; [L797] COND TRUE ! pumpRunning [L917] int retValue_acc ; [L918] int tmp ; [L919] int tmp___0 ; [L659] int retValue_acc ; [L662] COND TRUE waterLevel < 2 [L663] retValue_acc = 1 [L664] return (retValue_acc); [L923] tmp = isHighWaterSensorDry() [L925] COND TRUE \read(tmp) [L926] tmp___0 = 0 [L930] retValue_acc = tmp___0 [L931] return (retValue_acc); [L799] tmp = isHighWaterLevel() [L801] COND FALSE !(\read(tmp)) [L545] int tmp ; [L546] int tmp___0 ; [L650] int retValue_acc ; [L653] retValue_acc = waterLevel [L654] return (retValue_acc); [L550] tmp = getWaterLevel() [L552] COND TRUE tmp != 2 [L872] int retValue_acc ; [L875] retValue_acc = pumpRunning [L876] return (retValue_acc); [L554] tmp___0 = isPumpRunning() [L556] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...