./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.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_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/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 ec670bcbf6c6e1b5a4e4315225f9cccdc4aca27e ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 01:30:40,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:30:40,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:30:40,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:30:40,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:30:40,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:30:40,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:30:40,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:30:40,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:30:40,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:30:40,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:30:40,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:30:40,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:30:40,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:30:40,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:30:40,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:30:40,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:30:40,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:30:40,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:30:40,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:30:40,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:30:40,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:30:40,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:30:40,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:30:40,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:30:40,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:30:40,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:30:40,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:30:40,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:30:40,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:30:40,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:30:40,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:30:40,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:30:40,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:30:40,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:30:40,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:30:40,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:30:40,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:30:40,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:30:40,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:30:40,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:30:40,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:30:40,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:30:40,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:30:40,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:30:40,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:30:40,555 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:30:40,555 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:30:40,555 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:30:40,555 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:30:40,556 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:30:40,556 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:30:40,556 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:30:40,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:30:40,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:30:40,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:30:40,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:30:40,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:30:40,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:30:40,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:30:40,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:30:40,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:30:40,559 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:30:40,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:30:40,560 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:30:40,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:30:40,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:30:40,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:30:40,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:30:40,561 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:30:40,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:30:40,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:30:40,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:30:40,562 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:30:40,563 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:30:40,564 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_0f4464fb-a271-493f-857d-2aad81bdd03c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec670bcbf6c6e1b5a4e4315225f9cccdc4aca27e [2020-11-30 01:30:40,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:30:40,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:30:40,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:30:40,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:30:40,932 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:30:40,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2020-11-30 01:30:41,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/data/ceb94db38/7d0a0154ed9a431bacf9448b412ce33c/FLAGf609bc963 [2020-11-30 01:30:41,815 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:30:41,827 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2020-11-30 01:30:41,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/data/ceb94db38/7d0a0154ed9a431bacf9448b412ce33c/FLAGf609bc963 [2020-11-30 01:30:42,083 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/data/ceb94db38/7d0a0154ed9a431bacf9448b412ce33c [2020-11-30 01:30:42,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:30:42,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:30:42,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:42,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:30:42,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:30:42,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:42,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eea879b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42, skipping insertion in model container [2020-11-30 01:30:42,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:42,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:30:42,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:30:42,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:42,630 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:30:42,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:42,825 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:30:42,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42 WrapperNode [2020-11-30 01:30:42,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:42,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:42,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:30:42,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:30:42,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:42,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:42,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:42,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:30:42,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:30:42,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:30:42,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:42,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:42,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:42,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:43,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:43,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:43,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... [2020-11-30 01:30:43,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:30:43,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:30:43,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:30:43,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:30:43,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/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 [2020-11-30 01:30:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:30:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:30:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:30:43,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:30:44,705 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:30:44,710 INFO L298 CfgBuilder]: Removed 284 assume(true) statements. [2020-11-30 01:30:44,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:44 BoogieIcfgContainer [2020-11-30 01:30:44,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:30:44,716 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:30:44,716 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:30:44,720 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:30:44,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:44,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:30:42" (1/3) ... [2020-11-30 01:30:44,723 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61656b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:30:44, skipping insertion in model container [2020-11-30 01:30:44,723 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:44,724 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:42" (2/3) ... [2020-11-30 01:30:44,725 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61656b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:30:44, skipping insertion in model container [2020-11-30 01:30:44,725 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:44,725 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:44" (3/3) ... [2020-11-30 01:30:44,728 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product54.cil.c [2020-11-30 01:30:44,804 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:30:44,805 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:30:44,805 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:30:44,805 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:30:44,805 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:30:44,805 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:30:44,806 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:30:44,806 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:30:44,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2020-11-30 01:30:44,883 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-30 01:30:44,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:44,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:44,894 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:44,895 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:44,895 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:30:44,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2020-11-30 01:30:44,908 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-30 01:30:44,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:44,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:44,910 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:44,910 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:44,917 INFO L794 eck$LassoCheckResult]: Stem: 156#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~4, main_~tmp~7;havoc main_~retValue_acc~4;havoc main_~tmp~7; 173#L982true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 177#L990true main_#t~ret35 := valid_product_#res;main_~tmp~7 := main_#t~ret35;havoc main_#t~ret35; 130#L468true assume 0 != main_~tmp~7; 21#L442true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L365-1true [2020-11-30 01:30:44,917 INFO L796 eck$LassoCheckResult]: Loop: 9#L365-1true assume !false; 119#L58true assume test_~splverifierCounter~0 < 4; 26#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 77#L67true assume !(0 != test_~tmp~0); 71#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 158#L77true assume !(0 != test_~tmp___0~0); 157#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 17#L87true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 10#L95-2true assume !(0 != ~pumpRunning~0); 20#L131true assume !(0 != ~systemActive~0); 132#L138true havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 74#L923true __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 7#L365true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 9#L365-1true [2020-11-30 01:30:44,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:44,929 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:30:44,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:44,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102042869] [2020-11-30 01:30:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:45,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:45,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:45,585 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:45,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1675526971, now seen corresponding path program 1 times [2020-11-30 01:30:45,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:45,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116801094] [2020-11-30 01:30:45,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:45,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116801094] [2020-11-30 01:30:45,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:45,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:45,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498013657] [2020-11-30 01:30:45,690 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:30:45,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:45,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:45,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:45,712 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 3 states. [2020-11-30 01:30:45,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:45,797 INFO L93 Difference]: Finished difference Result 186 states and 275 transitions. [2020-11-30 01:30:45,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:45,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 275 transitions. [2020-11-30 01:30:45,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2020-11-30 01:30:45,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 179 states and 267 transitions. [2020-11-30 01:30:45,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2020-11-30 01:30:45,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2020-11-30 01:30:45,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 267 transitions. [2020-11-30 01:30:45,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:30:45,841 INFO L691 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-30 01:30:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 267 transitions. [2020-11-30 01:30:45,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-11-30 01:30:45,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-11-30 01:30:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 267 transitions. [2020-11-30 01:30:45,914 INFO L714 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-30 01:30:45,914 INFO L594 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-30 01:30:45,914 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:30:45,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 267 transitions. [2020-11-30 01:30:45,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2020-11-30 01:30:45,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:45,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:45,925 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:45,925 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:45,926 INFO L794 eck$LassoCheckResult]: Stem: 555#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 407#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~4, main_~tmp~7;havoc main_~retValue_acc~4;havoc main_~tmp~7; 408#L982 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 562#L990 main_#t~ret35 := valid_product_#res;main_~tmp~7 := main_#t~ret35;havoc main_#t~ret35; 542#L468 assume 0 != main_~tmp~7; 425#L442 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 393#L365-1 [2020-11-30 01:30:45,926 INFO L796 eck$LassoCheckResult]: Loop: 393#L365-1 assume !false; 399#L58 assume test_~splverifierCounter~0 < 4; 430#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 431#L67 assume !(0 != test_~tmp~0); 398#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 497#L77 assume !(0 != test_~tmp___0~0); 554#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 416#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 400#L95-2 assume !(0 != ~pumpRunning~0); 401#L131 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 420#L215 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 549#L189-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 527#L163-3 assume !(0 == ~pumpRunning~0); 391#L138 havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 498#L923 __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 392#L365 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 393#L365-1 [2020-11-30 01:30:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:45,928 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:30:45,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:45,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995502412] [2020-11-30 01:30:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,053 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,203 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:46,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1905346312, now seen corresponding path program 1 times [2020-11-30 01:30:46,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:46,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067473779] [2020-11-30 01:30:46,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:46,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067473779] [2020-11-30 01:30:46,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:46,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:46,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603962229] [2020-11-30 01:30:46,234 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:30:46,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:46,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:46,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:46,235 INFO L87 Difference]: Start difference. First operand 179 states and 267 transitions. cyclomatic complexity: 90 Second operand 3 states. [2020-11-30 01:30:46,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:46,407 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2020-11-30 01:30:46,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:46,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2020-11-30 01:30:46,411 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-30 01:30:46,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2020-11-30 01:30:46,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2020-11-30 01:30:46,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2020-11-30 01:30:46,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2020-11-30 01:30:46,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:30:46,417 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-30 01:30:46,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2020-11-30 01:30:46,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-30 01:30:46,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-30 01:30:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2020-11-30 01:30:46,429 INFO L714 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-30 01:30:46,429 INFO L594 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-30 01:30:46,430 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:30:46,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 255 transitions. [2020-11-30 01:30:46,432 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-30 01:30:46,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:46,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:46,433 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:46,434 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] [2020-11-30 01:30:46,434 INFO L794 eck$LassoCheckResult]: Stem: 894#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 774#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~4, main_~tmp~7;havoc main_~retValue_acc~4;havoc main_~tmp~7; 775#L982 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 898#L990 main_#t~ret35 := valid_product_#res;main_~tmp~7 := main_#t~ret35;havoc main_#t~ret35; 884#L468 assume 0 != main_~tmp~7; 785#L442 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 762#L365-1 [2020-11-30 01:30:46,435 INFO L796 eck$LassoCheckResult]: Loop: 762#L365-1 assume !false; 767#L58 assume test_~splverifierCounter~0 < 4; 792#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 793#L67 assume !(0 != test_~tmp~0); 766#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 845#L77 assume !(0 != test_~tmp___0~0); 893#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 779#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 768#L95-2 assume !(0 != ~pumpRunning~0); 769#L131 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 784#L215 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 888#L189-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 873#L163-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 866#L931-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 867#L936-3 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 831#L317-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 832#L317-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 825#L323-3 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 826#L167-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 760#L138 havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 848#L923 __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 761#L365 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 762#L365-1 [2020-11-30 01:30:46,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,435 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:30:46,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:46,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319674308] [2020-11-30 01:30:46,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,615 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:46,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,616 INFO L82 PathProgramCache]: Analyzing trace with hash -659266396, now seen corresponding path program 1 times [2020-11-30 01:30:46,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:46,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177505988] [2020-11-30 01:30:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,640 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:46,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,641 INFO L82 PathProgramCache]: Analyzing trace with hash 594038730, now seen corresponding path program 1 times [2020-11-30 01:30:46,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:46,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693246705] [2020-11-30 01:30:46,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,733 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,816 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:46,974 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 01:32:11,633 WARN L193 SmtUtils]: Spent 1.41 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:33:11,033 WARN L193 SmtUtils]: Spent 59.39 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:33:11,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:33:11 BoogieIcfgContainer [2020-11-30 01:33:11,234 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:33:11,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:33:11,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:33:11,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:33:11,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:44" (3/4) ... [2020-11-30 01:33:11,246 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:33:11,335 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0f4464fb-a271-493f-857d-2aad81bdd03c/bin/uautomizer/witness.graphml [2020-11-30 01:33:11,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:33:11,345 INFO L168 Benchmark]: Toolchain (without parser) took 149255.17 ms. Allocated memory was 94.4 MB in the beginning and 180.4 MB in the end (delta: 86.0 MB). Free memory was 60.8 MB in the beginning and 98.2 MB in the end (delta: -37.4 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:11,348 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 69.2 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:33:11,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.74 ms. Allocated memory is still 94.4 MB. Free memory was 60.6 MB in the beginning and 59.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:11,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.36 ms. Allocated memory is still 94.4 MB. Free memory was 59.6 MB in the beginning and 55.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:11,350 INFO L168 Benchmark]: Boogie Preprocessor took 101.36 ms. Allocated memory is still 94.4 MB. Free memory was 55.0 MB in the beginning and 51.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:11,351 INFO L168 Benchmark]: RCFGBuilder took 1665.02 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 51.2 MB in the beginning and 89.6 MB in the end (delta: -38.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:11,351 INFO L168 Benchmark]: BuchiAutomizer took 146518.86 ms. Allocated memory was 138.4 MB in the beginning and 180.4 MB in the end (delta: 41.9 MB). Free memory was 89.6 MB in the beginning and 101.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 87.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:11,352 INFO L168 Benchmark]: Witness Printer took 107.67 ms. Allocated memory is still 180.4 MB. Free memory was 101.3 MB in the beginning and 98.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:11,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 69.2 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 731.74 ms. Allocated memory is still 94.4 MB. Free memory was 60.6 MB in the beginning and 59.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 119.36 ms. Allocated memory is still 94.4 MB. Free memory was 59.6 MB in the beginning and 55.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.36 ms. Allocated memory is still 94.4 MB. Free memory was 55.0 MB in the beginning and 51.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1665.02 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 51.2 MB in the beginning and 89.6 MB in the end (delta: -38.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 146518.86 ms. Allocated memory was 138.4 MB in the beginning and 180.4 MB in the end (delta: 41.9 MB). Free memory was 89.6 MB in the beginning and 101.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 87.1 MB. Max. memory is 16.1 GB. * Witness Printer took 107.67 ms. Allocated memory is still 180.4 MB. Free memory was 101.3 MB in the beginning and 98.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 184 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 146.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 145.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 184 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 464 SDtfs, 405 SDslu, 75 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8872} State at position 1 is {NULL=0, NULL=0, NULL=31047, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@af8d094=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@331b03f3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d8ffd9=0, NULL=8872, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55c262e3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25aa281a=0, NULL=31057, retValue_acc=1, methaneLevelCritical=0, NULL=31055, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1045868e=0, NULL=0, retValue_acc=0, NULL=31051, NULL=0, tmp___1=0, NULL=0, NULL=31041, cleanupTimeShifts=4, tmp=0, waterLevel=1, NULL=0, NULL=31048, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=31059, NULL=31054, tmp=1, \result=1, NULL=0, NULL=0, tmp=1, NULL=0, retValue_acc=1, tmp=1, NULL=0, NULL=31042, NULL=31044, NULL=31056, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@81246f9=0, NULL=31049, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f8c8d57=0, tmp=0, head=0, NULL=0, NULL=0, NULL=8873, retValue_acc=0, NULL=31050, NULL=31052, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ece3a28=0, NULL=31045, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@569f9771=0, tmp=0, NULL=0, tmp___0=0, NULL=0, NULL=31053, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73a846cd=0, NULL=0, NULL=31039, tmp=0, tmp___0=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=31037, NULL=8874, \result=0, NULL=31058, NULL=0, NULL=0, NULL=31060, NULL=31038, NULL=8876, tmp___2=66, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=8875, NULL=0, NULL=0, NULL=31043, NULL=0, NULL=31040, NULL=31046} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L383] int cleanupTimeShifts = 4; [L651] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L848] int waterLevel = 1; [L849] int methaneLevelCritical = 0; [L459] int retValue_acc ; [L460] int tmp ; [L986] int retValue_acc ; [L989] retValue_acc = 1 [L990] return (retValue_acc); [L466] tmp = valid_product() [L468] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L350] systemActive = 1 [L131] COND FALSE !(\read(pumpRunning)) [L138] COND TRUE \read(systemActive) [L212] int tmp ; [L215] COND FALSE !(\read(pumpRunning)) [L186] int tmp ; [L189] COND FALSE !(\read(pumpRunning)) [L160] int tmp ; [L163] COND TRUE ! pumpRunning [L309] int retValue_acc ; [L310] int tmp ; [L311] int tmp___0 ; [L928] int retValue_acc ; [L931] COND TRUE waterLevel < 2 [L932] retValue_acc = 1 [L933] return (retValue_acc); [L315] tmp = isHighWaterSensorDry() [L317] COND TRUE \read(tmp) [L318] tmp___0 = 0 [L322] retValue_acc = tmp___0 [L323] return (retValue_acc); [L165] tmp = isHighWaterLevel() [L167] COND FALSE !(\read(tmp)) [L358] int tmp ; [L359] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = waterLevel [L923] return (retValue_acc); [L363] tmp = getWaterLevel() [L365] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...