./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/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 5b9eca3afb7c823b2d668da4db479190de6a16d4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:43:42,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:43:42,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:43:42,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:43:42,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:43:42,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:43:42,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:43:42,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:43:42,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:43:42,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:43:42,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:43:42,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:43:42,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:43:42,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:43:42,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:43:42,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:43:42,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:43:42,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:43:42,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:43:42,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:43:42,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:43:42,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:43:42,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:43:42,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:43:42,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:43:42,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:43:42,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:43:42,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:43:42,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:43:42,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:43:42,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:43:42,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:43:42,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:43:42,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:43:42,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:43:42,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:43:42,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:43:42,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:43:42,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:43:42,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:43:42,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:43:42,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:43:42,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:43:42,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:43:42,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:43:42,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:43:42,635 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:43:42,636 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:43:42,636 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:43:42,636 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:43:42,637 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:43:42,637 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:43:42,638 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:43:42,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:43:42,639 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:43:42,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:43:42,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:43:42,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:43:42,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:43:42,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:43:42,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:43:42,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:43:42,641 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:43:42,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:43:42,642 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:43:42,642 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:43:42,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:43:42,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:43:42,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:43:42,644 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:43:42,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:43:42,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:43:42,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:43:42,645 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:43:42,647 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:43:42,647 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_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b9eca3afb7c823b2d668da4db479190de6a16d4 [2020-11-29 18:43:42,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:43:42,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:43:43,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:43:43,002 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:43:43,003 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:43:43,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2020-11-29 18:43:43,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/data/af2d4180c/dc69b6cc850e49058c32e943651168c1/FLAG7b81570e9 [2020-11-29 18:43:43,747 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:43:43,748 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2020-11-29 18:43:43,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/data/af2d4180c/dc69b6cc850e49058c32e943651168c1/FLAG7b81570e9 [2020-11-29 18:43:44,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/data/af2d4180c/dc69b6cc850e49058c32e943651168c1 [2020-11-29 18:43:44,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:43:44,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:43:44,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:43:44,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:43:44,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:43:44,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de11e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44, skipping insertion in model container [2020-11-29 18:43:44,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:43:44,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:43:44,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:43:44,531 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:43:44,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:43:44,701 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:43:44,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44 WrapperNode [2020-11-29 18:43:44,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:43:44,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:43:44,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:43:44,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:43:44,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:43:44,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:43:44,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:43:44,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:43:44,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... [2020-11-29 18:43:44,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:43:44,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:43:44,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:43:44,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:43:44,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:43:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:43:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:43:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:43:46,435 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:43:46,436 INFO L298 CfgBuilder]: Removed 134 assume(true) statements. [2020-11-29 18:43:46,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:43:46 BoogieIcfgContainer [2020-11-29 18:43:46,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:43:46,440 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:43:46,440 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:43:46,444 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:43:46,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:43:46,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:43:44" (1/3) ... [2020-11-29 18:43:46,447 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79305e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:43:46, skipping insertion in model container [2020-11-29 18:43:46,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:43:46,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:44" (2/3) ... [2020-11-29 18:43:46,449 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79305e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:43:46, skipping insertion in model container [2020-11-29 18:43:46,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:43:46,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:43:46" (3/3) ... [2020-11-29 18:43:46,451 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product41.cil.c [2020-11-29 18:43:46,509 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:43:46,510 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:43:46,510 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:43:46,510 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:43:46,510 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:43:46,511 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:43:46,511 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:43:46,511 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:43:46,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-29 18:43:46,562 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2020-11-29 18:43:46,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:46,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:46,580 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:46,580 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:46,581 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:43:46,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-29 18:43:46,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2020-11-29 18:43:46,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:46,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:46,591 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:46,591 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:46,598 INFO L794 eck$LassoCheckResult]: Stem: 33#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 11#L925true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 43#L933true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 49#L283true assume 0 != main_~tmp~1; 8#L255true ~switchedOnBeforeTS~0 := 0; 5#L51true havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 81#L72-1true [2020-11-29 18:43:46,599 INFO L796 eck$LassoCheckResult]: Loop: 81#L72-1true assume !false; 25#L483true assume test_~splverifierCounter~0 < 4; 45#L484true test_~tmp~5 := test_#t~nondet41;havoc test_#t~nondet41; 82#L492true assume !(0 != test_~tmp~5); 85#L492-1true test_~tmp___0~2 := test_#t~nondet42;havoc test_#t~nondet42; 57#L502true assume !(0 != test_~tmp___0~2); 59#L502-1true test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 28#L512true assume 0 != test_~tmp___2~0; 70#L518-2true havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 91#L412true __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 84#L61true assume !(0 != ~pumpRunning~0); 88#L309true assume !(0 != ~systemActive~0); 65#L316true havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 3#L175true __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 86#L72true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 81#L72-1true [2020-11-29 18:43:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:46,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 18:43:46,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:46,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462401773] [2020-11-29 18:43:46,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:46,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:47,078 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:47,131 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:47,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:47,143 INFO L82 PathProgramCache]: Analyzing trace with hash 94689454, now seen corresponding path program 1 times [2020-11-29 18:43:47,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:47,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306059810] [2020-11-29 18:43:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:47,167 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:47,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:47,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:47,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2028714664, now seen corresponding path program 1 times [2020-11-29 18:43:47,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:47,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250901045] [2020-11-29 18:43:47,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:43:47,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250901045] [2020-11-29 18:43:47,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:43:47,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:43:47,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060752662] [2020-11-29 18:43:47,641 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-11-29 18:43:47,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:43:47,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:43:47,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:43:47,684 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 6 states. [2020-11-29 18:43:47,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:43:47,971 INFO L93 Difference]: Finished difference Result 93 states and 127 transitions. [2020-11-29 18:43:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:43:47,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 127 transitions. [2020-11-29 18:43:47,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 18:43:47,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 86 states and 120 transitions. [2020-11-29 18:43:47,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2020-11-29 18:43:47,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2020-11-29 18:43:47,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 120 transitions. [2020-11-29 18:43:47,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:43:47,992 INFO L691 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2020-11-29 18:43:48,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 120 transitions. [2020-11-29 18:43:48,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-11-29 18:43:48,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-29 18:43:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2020-11-29 18:43:48,039 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2020-11-29 18:43:48,040 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2020-11-29 18:43:48,040 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:43:48,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 120 transitions. [2020-11-29 18:43:48,042 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 18:43:48,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:48,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:48,046 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:48,046 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:48,046 INFO L794 eck$LassoCheckResult]: Stem: 257#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 215#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 216#L925 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 223#L933 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 267#L283 assume 0 != main_~tmp~1; 217#L255 ~switchedOnBeforeTS~0 := 0; 211#L51 havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 212#L72-1 [2020-11-29 18:43:48,047 INFO L796 eck$LassoCheckResult]: Loop: 212#L72-1 assume !false; 237#L483 assume test_~splverifierCounter~0 < 4; 238#L484 test_~tmp~5 := test_#t~nondet41;havoc test_#t~nondet41; 268#L492 assume !(0 != test_~tmp~5); 281#L492-1 test_~tmp___0~2 := test_#t~nondet42;havoc test_#t~nondet42; 276#L502 assume !(0 != test_~tmp___0~2); 278#L502-1 test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 243#L512 assume 0 != test_~tmp___2~0; 245#L518-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 285#L412 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 291#L61 assume !(0 != ~pumpRunning~0); 251#L309 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret21, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 279#L341 assume !(0 == ~pumpRunning~0); 270#L316 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 207#L175 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 208#L72 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 212#L72-1 [2020-11-29 18:43:48,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:48,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 18:43:48,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:48,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251079208] [2020-11-29 18:43:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:48,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:48,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:48,276 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:48,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:48,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1401363707, now seen corresponding path program 1 times [2020-11-29 18:43:48,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:48,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699622869] [2020-11-29 18:43:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:43:48,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699622869] [2020-11-29 18:43:48,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:43:48,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:43:48,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102383370] [2020-11-29 18:43:48,317 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:43:48,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:43:48,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:43:48,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:43:48,319 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-11-29 18:43:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:43:48,479 INFO L93 Difference]: Finished difference Result 135 states and 182 transitions. [2020-11-29 18:43:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:43:48,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 182 transitions. [2020-11-29 18:43:48,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2020-11-29 18:43:48,488 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 135 states and 182 transitions. [2020-11-29 18:43:48,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2020-11-29 18:43:48,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2020-11-29 18:43:48,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 182 transitions. [2020-11-29 18:43:48,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:43:48,491 INFO L691 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2020-11-29 18:43:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 182 transitions. [2020-11-29 18:43:48,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2020-11-29 18:43:48,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-29 18:43:48,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 182 transitions. [2020-11-29 18:43:48,504 INFO L714 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2020-11-29 18:43:48,504 INFO L594 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2020-11-29 18:43:48,504 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:43:48,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 182 transitions. [2020-11-29 18:43:48,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2020-11-29 18:43:48,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:48,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:48,508 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:48,508 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:48,509 INFO L794 eck$LassoCheckResult]: Stem: 481#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 442#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 443#L925 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 450#L933 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 492#L283 assume 0 != main_~tmp~1; 444#L255 ~switchedOnBeforeTS~0 := 0; 438#L51 havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 439#L72-1 [2020-11-29 18:43:48,509 INFO L796 eck$LassoCheckResult]: Loop: 439#L72-1 assume !false; 534#L483 assume test_~splverifierCounter~0 < 4; 535#L484 test_~tmp~5 := test_#t~nondet41;havoc test_#t~nondet41; 552#L492 assume !(0 != test_~tmp~5); 549#L492-1 test_~tmp___0~2 := test_#t~nondet42;havoc test_#t~nondet42; 547#L502 assume !(0 != test_~tmp___0~2); 545#L502-1 test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 544#L512 assume 0 != test_~tmp___2~0; 518#L518-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 519#L412 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 525#L61 assume !(0 != ~pumpRunning~0); 526#L309 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret21, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 509#L341 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret40, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 487#L183 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 488#L188 isHighWaterLevel_#t~ret40 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret40;havoc isHighWaterLevel_#t~ret40; 468#L461 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 469#L461-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 470#L467 processEnvironment_#t~ret21 := isHighWaterLevel_#res;processEnvironment_~tmp~2 := processEnvironment_#t~ret21;havoc processEnvironment_#t~ret21; 495#L345 assume !(0 != processEnvironment_~tmp~2); 496#L316 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 434#L175 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 435#L72 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 439#L72-1 [2020-11-29 18:43:48,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:48,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 18:43:48,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:48,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448713270] [2020-11-29 18:43:48,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:48,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:48,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:48,644 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:48,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:48,645 INFO L82 PathProgramCache]: Analyzing trace with hash 394057809, now seen corresponding path program 1 times [2020-11-29 18:43:48,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:48,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35809105] [2020-11-29 18:43:48,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:48,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:43:48,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35809105] [2020-11-29 18:43:48,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:43:48,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:43:48,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470863080] [2020-11-29 18:43:48,710 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:43:48,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:43:48,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:43:48,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:43:48,711 INFO L87 Difference]: Start difference. First operand 135 states and 182 transitions. cyclomatic complexity: 49 Second operand 5 states. [2020-11-29 18:43:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:43:49,001 INFO L93 Difference]: Finished difference Result 357 states and 473 transitions. [2020-11-29 18:43:49,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:43:49,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 357 states and 473 transitions. [2020-11-29 18:43:49,009 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 235 [2020-11-29 18:43:49,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 357 states to 357 states and 473 transitions. [2020-11-29 18:43:49,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2020-11-29 18:43:49,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2020-11-29 18:43:49,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 473 transitions. [2020-11-29 18:43:49,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:43:49,028 INFO L691 BuchiCegarLoop]: Abstraction has 357 states and 473 transitions. [2020-11-29 18:43:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 473 transitions. [2020-11-29 18:43:49,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 263. [2020-11-29 18:43:49,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-29 18:43:49,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 346 transitions. [2020-11-29 18:43:49,075 INFO L714 BuchiCegarLoop]: Abstraction has 263 states and 346 transitions. [2020-11-29 18:43:49,075 INFO L594 BuchiCegarLoop]: Abstraction has 263 states and 346 transitions. [2020-11-29 18:43:49,075 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:43:49,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 346 transitions. [2020-11-29 18:43:49,079 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2020-11-29 18:43:49,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:49,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:49,083 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:49,084 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] [2020-11-29 18:43:49,085 INFO L794 eck$LassoCheckResult]: Stem: 989#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 950#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 951#L925 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 958#L933 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 1000#L283 assume 0 != main_~tmp~1; 952#L255 ~switchedOnBeforeTS~0 := 0; 946#L51 havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 947#L72-1 [2020-11-29 18:43:49,085 INFO L796 eck$LassoCheckResult]: Loop: 947#L72-1 assume !false; 972#L483 assume test_~splverifierCounter~0 < 4; 973#L484 test_~tmp~5 := test_#t~nondet41;havoc test_#t~nondet41; 1201#L492 assume !(0 != test_~tmp~5); 1199#L492-1 test_~tmp___0~2 := test_#t~nondet42;havoc test_#t~nondet42; 1196#L502 assume !(0 != test_~tmp___0~2); 1193#L502-1 test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 1190#L512 assume 0 != test_~tmp___2~0; 1187#L518-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1185#L412 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 1039#L61 assume !(0 != ~pumpRunning~0); 1040#L309 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret21, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1020#L341 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret40, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 995#L183 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 996#L188 isHighWaterLevel_#t~ret40 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret40;havoc isHighWaterLevel_#t~ret40; 1126#L461 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 977#L461-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 978#L467 processEnvironment_#t~ret21 := isHighWaterLevel_#res;processEnvironment_~tmp~2 := processEnvironment_#t~ret21;havoc processEnvironment_#t~ret21; 1004#L345 assume !(0 != processEnvironment_~tmp~2); 1005#L316 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 942#L175 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 943#L72 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1041#L412-1 __utac_acc__Specification5_spec__3_#t~ret9 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 959#L76 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 947#L72-1 [2020-11-29 18:43:49,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:49,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 18:43:49,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:49,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17326424] [2020-11-29 18:43:49,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:49,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:49,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:49,237 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:49,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:49,239 INFO L82 PathProgramCache]: Analyzing trace with hash 732416844, now seen corresponding path program 1 times [2020-11-29 18:43:49,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:49,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755895524] [2020-11-29 18:43:49,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:49,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:49,270 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:49,277 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:49,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:49,280 INFO L82 PathProgramCache]: Analyzing trace with hash 591823506, now seen corresponding path program 1 times [2020-11-29 18:43:49,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:49,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055556464] [2020-11-29 18:43:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:49,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:49,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:49,455 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:49,757 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-11-29 18:43:49,904 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-11-29 18:45:22,845 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 18:46:24,020 WARN L193 SmtUtils]: Spent 1.02 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 18:46:24,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:46:24 BoogieIcfgContainer [2020-11-29 18:46:24,239 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:46:24,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:46:24,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:46:24,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:46:24,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:43:46" (3/4) ... [2020-11-29 18:46:24,243 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:46:24,356 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9d012049-398a-4156-8c0c-a6ecdc9d3b7a/bin/uautomizer/witness.graphml [2020-11-29 18:46:24,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:46:24,358 INFO L168 Benchmark]: Toolchain (without parser) took 160336.79 ms. Allocated memory was 109.1 MB in the beginning and 184.5 MB in the end (delta: 75.5 MB). Free memory was 79.9 MB in the beginning and 91.5 MB in the end (delta: -11.6 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:24,358 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:46:24,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.38 ms. Allocated memory is still 109.1 MB. Free memory was 79.6 MB in the beginning and 74.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:24,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.58 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 70.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:24,362 INFO L168 Benchmark]: Boogie Preprocessor took 80.02 ms. Allocated memory is still 109.1 MB. Free memory was 70.8 MB in the beginning and 68.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:24,363 INFO L168 Benchmark]: RCFGBuilder took 1545.33 ms. Allocated memory was 109.1 MB in the beginning and 153.1 MB in the end (delta: 44.0 MB). Free memory was 68.3 MB in the beginning and 87.9 MB in the end (delta: -19.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:24,364 INFO L168 Benchmark]: BuchiAutomizer took 157798.96 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 87.9 MB in the beginning and 94.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:24,365 INFO L168 Benchmark]: Witness Printer took 116.77 ms. Allocated memory is still 184.5 MB. Free memory was 94.5 MB in the beginning and 91.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:24,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 680.38 ms. Allocated memory is still 109.1 MB. Free memory was 79.6 MB in the beginning and 74.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.58 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 70.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.02 ms. Allocated memory is still 109.1 MB. Free memory was 70.8 MB in the beginning and 68.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1545.33 ms. Allocated memory was 109.1 MB in the beginning and 153.1 MB in the end (delta: 44.0 MB). Free memory was 68.3 MB in the beginning and 87.9 MB in the end (delta: -19.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 157798.96 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 87.9 MB in the beginning and 94.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. * Witness Printer took 116.77 ms. Allocated memory is still 184.5 MB. Free memory was 94.5 MB in the beginning and 91.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 263 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 157.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 156.6s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 94 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 263 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 399 SDtfs, 848 SDslu, 408 SDs, 0 SdLazy, 103 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 482]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11058} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=11058, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@87c44f5=0, NULL=11072, NULL=11061, NULL=11083, methaneLevelCritical=0, retValue_acc=1, tmp=0, NULL=0, NULL=11075, NULL=11081, NULL=0, tmp___1=0, NULL=11066, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d63a500=0, NULL=11077, cleanupTimeShifts=4, NULL=11064, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@444f915c=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fd0865d=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bccb885=0, waterLevel=1, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=11070, tmp=1, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=11073, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=11067, NULL=11079, tmp=0, head=0, NULL=11068, NULL=0, NULL=0, NULL=0, NULL=11062, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49de59eb=0, NULL=11063, retValue_acc=0, NULL=11085, NULL=11078, NULL=11076, tmp___0=0, NULL=0, NULL=0, tmp=1, NULL=0, switchedOnBeforeTS=0, NULL=11071, NULL=11069, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=11074, tmp___0=0, \result=0, NULL=0, NULL=11082, NULL=0, NULL=11084, NULL=0, NULL=11086, NULL=11059, tmp___2=55, splverifierCounter=0, NULL=0, NULL=11060, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b0e1715=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5faf7e0c=0, NULL=11065, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c3fed7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a315d6b=0, NULL=0, NULL=0, NULL=11080, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int switchedOnBeforeTS ; [L100] int waterLevel = 1; [L101] int methaneLevelCritical = 0; [L194] int cleanupTimeShifts = 4; [L299] int pumpRunning = 0; [L300] int systemActive = 1; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L274] int retValue_acc ; [L275] int tmp ; [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); [L281] tmp = valid_product() [L283] COND TRUE \read(tmp) [L50] switchedOnBeforeTS = 0 [L473] int splverifierCounter ; [L474] int tmp ; [L475] int tmp___0 ; [L476] int tmp___1 ; [L477] int tmp___2 ; [L480] splverifierCounter = 0 Loop: [L482] COND TRUE 1 [L484] COND TRUE splverifierCounter < 4 [L490] tmp = __VERIFIER_nondet_int() [L492] COND FALSE !(\read(tmp)) [L500] tmp___0 = __VERIFIER_nondet_int() [L502] COND FALSE !(\read(tmp___0)) [L510] tmp___2 = __VERIFIER_nondet_int() [L512] COND TRUE \read(tmp___2) [L408] int retValue_acc ; [L411] retValue_acc = pumpRunning [L412] return (retValue_acc); [L59] switchedOnBeforeTS = isPumpRunning() [L309] COND FALSE !(\read(pumpRunning)) [L316] COND TRUE \read(systemActive) [L338] int tmp ; [L341] COND TRUE ! pumpRunning [L453] int retValue_acc ; [L454] int tmp ; [L455] int tmp___0 ; [L180] int retValue_acc ; [L183] COND TRUE waterLevel < 2 [L184] retValue_acc = 1 [L185] return (retValue_acc); [L459] tmp = isHighWaterSensorDry() [L461] COND TRUE \read(tmp) [L462] tmp___0 = 0 [L466] retValue_acc = tmp___0 [L467] return (retValue_acc); [L343] tmp = isHighWaterLevel() [L345] COND FALSE !(\read(tmp)) [L65] int tmp ; [L66] int tmp___0 ; [L171] int retValue_acc ; [L174] retValue_acc = waterLevel [L175] return (retValue_acc); [L70] tmp = getWaterLevel() [L72] COND TRUE tmp != 2 [L408] int retValue_acc ; [L411] retValue_acc = pumpRunning [L412] return (retValue_acc); [L74] tmp___0 = isPumpRunning() [L76] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...