./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product08.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_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/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 5c3579778b77a7192077bc9888bcbdc6aa28d23d .................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:30:40,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:30:40,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:30:41,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:30:41,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:30:41,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:30:41,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:30:41,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:30:41,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:30:41,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:30:41,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:30:41,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:30:41,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:30:41,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:30:41,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:30:41,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:30:41,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:30:41,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:30:41,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:30:41,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:30:41,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:30:41,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:30:41,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:30:41,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:30:41,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:30:41,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:30:41,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:30:41,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:30:41,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:30:41,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:30:41,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:30:41,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:30:41,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:30:41,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:30:41,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:30:41,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:30:41,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:30:41,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:30:41,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:30:41,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:30:41,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:30:41,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:30:41,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:30:41,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:30:41,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:30:41,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:30:41,128 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:30:41,128 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:30:41,128 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:30:41,128 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:30:41,129 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:30:41,129 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:30:41,129 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:30:41,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:30:41,130 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:30:41,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:30:41,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:30:41,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:30:41,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:30:41,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:30:41,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:30:41,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:30:41,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:30:41,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:30:41,132 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:30:41,132 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:30:41,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:30:41,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:30:41,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:30:41,133 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:30:41,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:30:41,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:30:41,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:30:41,134 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:30:41,135 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:30:41,135 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_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c3579778b77a7192077bc9888bcbdc6aa28d23d [2020-11-29 18:30:41,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:30:41,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:30:41,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:30:41,432 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:30:41,433 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:30:41,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c [2020-11-29 18:30:41,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/data/2e826eee2/7958cf974ba14bb0a28010c91c3c95f5/FLAG57abef4ca [2020-11-29 18:30:42,086 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:30:42,087 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c [2020-11-29 18:30:42,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/data/2e826eee2/7958cf974ba14bb0a28010c91c3c95f5/FLAG57abef4ca [2020-11-29 18:30:42,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/data/2e826eee2/7958cf974ba14bb0a28010c91c3c95f5 [2020-11-29 18:30:42,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:30:42,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:30:42,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:30:42,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:30:42,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:30:42,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:30:42" (1/1) ... [2020-11-29 18:30:42,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5360b236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:42, skipping insertion in model container [2020-11-29 18:30:42,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:30:42" (1/1) ... [2020-11-29 18:30:42,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:30:42,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:30:42,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:30:42,994 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:30:43,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:30:43,098 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:30:43,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43 WrapperNode [2020-11-29 18:30:43,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:30:43,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:30:43,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:30:43,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:30:43,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:30:43,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:30:43,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:30:43,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:30:43,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... [2020-11-29 18:30:43,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:30:43,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:30:43,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:30:43,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:30:43,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/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 18:30:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:30:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:30:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:30:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:30:44,383 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:30:44,383 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-29 18:30:44,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:30:44 BoogieIcfgContainer [2020-11-29 18:30:44,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:30:44,387 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:30:44,387 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:30:44,391 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:30:44,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:30:44,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:30:42" (1/3) ... [2020-11-29 18:30:44,394 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@92f6cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:30:44, skipping insertion in model container [2020-11-29 18:30:44,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:30:44,394 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:43" (2/3) ... [2020-11-29 18:30:44,395 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@92f6cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:30:44, skipping insertion in model container [2020-11-29 18:30:44,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:30:44,395 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:30:44" (3/3) ... [2020-11-29 18:30:44,397 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product08.cil.c [2020-11-29 18:30:44,466 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:30:44,466 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:30:44,466 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:30:44,466 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:30:44,466 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:30:44,467 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:30:44,467 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:30:44,467 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:30:44,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-29 18:30:44,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 18:30:44,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:30:44,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:30:44,516 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:44,516 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:44,516 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:30:44,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-29 18:30:44,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 18:30:44,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:30:44,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:30:44,524 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:44,524 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:44,530 INFO L794 eck$LassoCheckResult]: Stem: 34#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);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(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 71#L408true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 5#L416true main_#t~ret29 := valid_product_#res;main_~tmp~2 := main_#t~ret29;havoc main_#t~ret29; 77#L372true assume 0 != main_~tmp~2; 19#L344true ~switchedOnBeforeTS~0 := 0; 49#L429true havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 25#L450-1true [2020-11-29 18:30:44,531 INFO L796 eck$LassoCheckResult]: Loop: 25#L450-1true assume !false; 42#L227true assume test_~splverifierCounter~0 < 4; 68#L228true test_~tmp~1 := test_#t~nondet25;havoc test_#t~nondet25; 82#L236true assume !(0 != test_~tmp~1); 81#L236-1true test_~tmp___0~0 := test_#t~nondet26;havoc test_#t~nondet26; 61#L246true assume !(0 != test_~tmp___0~0); 58#L246-1true test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 35#L256true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 24#L264-1true havoc __utac_acc__Specification5_spec__2_#t~ret31;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 7#L149true __utac_acc__Specification5_spec__2_#t~ret31 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret31;havoc __utac_acc__Specification5_spec__2_#t~ret31; 23#L439true assume !(0 != ~pumpRunning~0); 80#L64true assume !(0 != ~systemActive~0); 51#L71true havoc __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;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; 43#L922true __utac_acc__Specification5_spec__3_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret32;havoc __utac_acc__Specification5_spec__3_#t~ret32; 21#L450true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 25#L450-1true [2020-11-29 18:30:44,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:44,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 18:30:44,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:44,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343607684] [2020-11-29 18:30:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:44,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:44,934 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:45,000 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:30:45,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:45,005 INFO L82 PathProgramCache]: Analyzing trace with hash 674918200, now seen corresponding path program 1 times [2020-11-29 18:30:45,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:45,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267680252] [2020-11-29 18:30:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:45,152 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 18:30:45,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267680252] [2020-11-29 18:30:45,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:45,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:30:45,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004726682] [2020-11-29 18:30:45,165 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:30:45,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:45,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:30:45,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:30:45,185 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-11-29 18:30:45,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:45,281 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2020-11-29 18:30:45,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:30:45,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 203 transitions. [2020-11-29 18:30:45,291 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2020-11-29 18:30:45,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 133 states and 188 transitions. [2020-11-29 18:30:45,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2020-11-29 18:30:45,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2020-11-29 18:30:45,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 188 transitions. [2020-11-29 18:30:45,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:30:45,303 INFO L691 BuchiCegarLoop]: Abstraction has 133 states and 188 transitions. [2020-11-29 18:30:45,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 188 transitions. [2020-11-29 18:30:45,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2020-11-29 18:30:45,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-29 18:30:45,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2020-11-29 18:30:45,346 INFO L714 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2020-11-29 18:30:45,347 INFO L594 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2020-11-29 18:30:45,347 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:30:45,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 185 transitions. [2020-11-29 18:30:45,350 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2020-11-29 18:30:45,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:30:45,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:30:45,351 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:45,351 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 18:30:45,351 INFO L794 eck$LassoCheckResult]: Stem: 282#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);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(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 242#L-1 havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 243#L408 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 240#L416 main_#t~ret29 := valid_product_#res;main_~tmp~2 := main_#t~ret29;havoc main_#t~ret29; 241#L372 assume 0 != main_~tmp~2; 257#L344 ~switchedOnBeforeTS~0 := 0; 258#L429 havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 295#L450-1 [2020-11-29 18:30:45,352 INFO L796 eck$LassoCheckResult]: Loop: 295#L450-1 assume !false; 328#L227 assume test_~splverifierCounter~0 < 4; 329#L228 test_~tmp~1 := test_#t~nondet25;havoc test_#t~nondet25; 337#L236 assume !(0 != test_~tmp~1); 335#L236-1 test_~tmp___0~0 := test_#t~nondet26;havoc test_#t~nondet26; 307#L246 assume !(0 != test_~tmp___0~0); 237#L246-1 test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 327#L256 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 267#L264-1 havoc __utac_acc__Specification5_spec__2_#t~ret31;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 268#L149 __utac_acc__Specification5_spec__2_#t~ret31 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret31;havoc __utac_acc__Specification5_spec__2_#t~ret31; 324#L439 assume !(0 != ~pumpRunning~0); 318#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 319#L96 assume !(0 != ~pumpRunning~0); 339#L71 havoc __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;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; 338#L922 __utac_acc__Specification5_spec__3_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret32;havoc __utac_acc__Specification5_spec__3_#t~ret32; 333#L450 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 295#L450-1 [2020-11-29 18:30:45,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:45,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 18:30:45,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:45,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202510675] [2020-11-29 18:30:45,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:45,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:45,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:45,552 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:30:45,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:45,557 INFO L82 PathProgramCache]: Analyzing trace with hash -572900795, now seen corresponding path program 1 times [2020-11-29 18:30:45,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:45,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846257483] [2020-11-29 18:30:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:45,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:45,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:45,583 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:30:45,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:45,586 INFO L82 PathProgramCache]: Analyzing trace with hash -747661429, now seen corresponding path program 1 times [2020-11-29 18:30:45,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:45,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417756851] [2020-11-29 18:30:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:45,697 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 18:30:45,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417756851] [2020-11-29 18:30:45,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:45,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:30:45,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707340860] [2020-11-29 18:30:45,818 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-29 18:30:45,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:45,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:30:45,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:30:45,896 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. cyclomatic complexity: 57 Second operand 5 states. [2020-11-29 18:30:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:46,145 INFO L93 Difference]: Finished difference Result 356 states and 495 transitions. [2020-11-29 18:30:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:30:46,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 356 states and 495 transitions. [2020-11-29 18:30:46,157 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2020-11-29 18:30:46,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 356 states to 356 states and 495 transitions. [2020-11-29 18:30:46,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2020-11-29 18:30:46,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2020-11-29 18:30:46,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 495 transitions. [2020-11-29 18:30:46,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:30:46,176 INFO L691 BuchiCegarLoop]: Abstraction has 356 states and 495 transitions. [2020-11-29 18:30:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 495 transitions. [2020-11-29 18:30:46,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 255. [2020-11-29 18:30:46,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-11-29 18:30:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 349 transitions. [2020-11-29 18:30:46,207 INFO L714 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2020-11-29 18:30:46,207 INFO L594 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2020-11-29 18:30:46,207 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:30:46,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 349 transitions. [2020-11-29 18:30:46,216 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2020-11-29 18:30:46,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:30:46,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:30:46,217 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:46,217 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:46,218 INFO L794 eck$LassoCheckResult]: Stem: 787#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);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(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 745#L-1 havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 746#L408 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 743#L416 main_#t~ret29 := valid_product_#res;main_~tmp~2 := main_#t~ret29;havoc main_#t~ret29; 744#L372 assume 0 != main_~tmp~2; 763#L344 ~switchedOnBeforeTS~0 := 0; 764#L429 havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 772#L450-1 [2020-11-29 18:30:46,218 INFO L796 eck$LassoCheckResult]: Loop: 772#L450-1 assume !false; 773#L227 assume test_~splverifierCounter~0 < 4; 793#L228 test_~tmp~1 := test_#t~nondet25;havoc test_#t~nondet25; 821#L236 assume !(0 != test_~tmp~1); 986#L236-1 test_~tmp___0~0 := test_#t~nondet26;havoc test_#t~nondet26; 985#L246 assume !(0 != test_~tmp___0~0); 983#L246-1 test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 786#L256 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 771#L264-1 havoc __utac_acc__Specification5_spec__2_#t~ret31;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 749#L149 __utac_acc__Specification5_spec__2_#t~ret31 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret31;havoc __utac_acc__Specification5_spec__2_#t~ret31; 750#L439 assume !(0 != ~pumpRunning~0); 769#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 814#L96 assume !(0 != ~pumpRunning~0); 804#L71 havoc __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;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; 795#L922 __utac_acc__Specification5_spec__3_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret32;havoc __utac_acc__Specification5_spec__3_#t~ret32; 767#L450 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 768#L149-1 __utac_acc__Specification5_spec__3_#t~ret33 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 791#L454 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 772#L450-1 [2020-11-29 18:30:46,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:46,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 18:30:46,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:46,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870130164] [2020-11-29 18:30:46,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:46,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:46,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:46,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:30:46,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:46,354 INFO L82 PathProgramCache]: Analyzing trace with hash -801866080, now seen corresponding path program 1 times [2020-11-29 18:30:46,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:46,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368013558] [2020-11-29 18:30:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:46,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:46,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:46,377 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:30:46,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:46,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1243110810, now seen corresponding path program 1 times [2020-11-29 18:30:46,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:46,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971388926] [2020-11-29 18:30:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:46,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:46,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:46,485 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:30:46,640 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-29 18:32:16,797 WARN L193 SmtUtils]: Spent 1.50 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 18:33:16,559 WARN L193 SmtUtils]: Spent 59.74 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 18:33:16,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:33:16 BoogieIcfgContainer [2020-11-29 18:33:16,863 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:33:16,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:33:16,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:33:16,865 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:33:16,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:30:44" (3/4) ... [2020-11-29 18:33:16,868 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:33:16,929 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4e1696d2-9cdd-4344-a1a6-117f98d22a1b/bin/uautomizer/witness.graphml [2020-11-29 18:33:16,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:33:16,931 INFO L168 Benchmark]: Toolchain (without parser) took 154522.99 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 66.4 MB in the beginning and 114.3 MB in the end (delta: -47.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:33:16,932 INFO L168 Benchmark]: CDTParser took 1.44 ms. Allocated memory is still 102.8 MB. Free memory was 73.1 MB in the beginning and 73.1 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:33:16,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.23 ms. Allocated memory is still 102.8 MB. Free memory was 66.4 MB in the beginning and 68.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:16,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.24 ms. Allocated memory is still 102.8 MB. Free memory was 67.7 MB in the beginning and 65.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:16,933 INFO L168 Benchmark]: Boogie Preprocessor took 81.75 ms. Allocated memory is still 102.8 MB. Free memory was 65.0 MB in the beginning and 62.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:16,934 INFO L168 Benchmark]: RCFGBuilder took 1113.23 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 62.9 MB in the beginning and 78.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:16,935 INFO L168 Benchmark]: BuchiAutomizer took 152477.15 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 78.4 MB in the beginning and 116.4 MB in the end (delta: -37.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:16,936 INFO L168 Benchmark]: Witness Printer took 64.71 ms. Allocated memory is still 148.9 MB. Free memory was 116.4 MB in the beginning and 114.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:33:16,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44 ms. Allocated memory is still 102.8 MB. Free memory was 73.1 MB in the beginning and 73.1 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.23 ms. Allocated memory is still 102.8 MB. Free memory was 66.4 MB in the beginning and 68.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.24 ms. Allocated memory is still 102.8 MB. Free memory was 67.7 MB in the beginning and 65.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.75 ms. Allocated memory is still 102.8 MB. Free memory was 65.0 MB in the beginning and 62.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1113.23 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 62.9 MB in the beginning and 78.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 152477.15 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 78.4 MB in the beginning and 116.4 MB in the end (delta: -37.9 MB). Peak memory consumption was 75.9 MB. Max. memory is 16.1 GB. * Witness Printer took 64.71 ms. Allocated memory is still 148.9 MB. Free memory was 116.4 MB in the beginning and 114.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 152.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 151.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 103 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 404 SDslu, 387 SDs, 0 SdLazy, 77 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 226]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18511} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=18521, NULL=18527, NULL=0, retValue_acc=0, NULL=18511, NULL=0, NULL=18532, NULL=18533, NULL=18531, NULL=18530, methaneLevelCritical=0, tmp=1, NULL=0, NULL=18537, NULL=0, tmp___1=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dd6167d=0, NULL=18516, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=18528, \result=0, NULL=18523, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eebfb6b=0, NULL=18534, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18526, \result=1, NULL=18525, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2503960c=0, NULL=18529, \result=0, tmp___0=0, NULL=18520, NULL=18513, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@297c516b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@289006b2=76, NULL=18538, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@214a2355=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@637a8ff0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2deba145=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1595f9b4=0, NULL=0, retValue_acc=1, NULL=0, NULL=18514, NULL=18522, NULL=0, NULL=0, retValue_acc=1, NULL=18512, NULL=0, tmp___2=76, splverifierCounter=0, NULL=0, NULL=18539, NULL=18536, NULL=18535, tmp=0, head=0, retValue_acc=0, NULL=18519, NULL=0, NULL=0, NULL=18517, NULL=0, NULL=18518, NULL=18524, NULL=18515} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L52] int pumpRunning = 0; [L53] int systemActive = 1; [L285] int cleanupTimeShifts = 4; [L423] int switchedOnBeforeTS ; [L641] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L847] int waterLevel = 1; [L848] int methaneLevelCritical = 0; [L363] int retValue_acc ; [L364] int tmp ; [L412] int retValue_acc ; [L415] retValue_acc = 1 [L416] return (retValue_acc); [L370] tmp = valid_product() [L372] COND TRUE \read(tmp) [L428] switchedOnBeforeTS = 0 [L217] int splverifierCounter ; [L218] int tmp ; [L219] int tmp___0 ; [L220] int tmp___1 ; [L221] int tmp___2 ; [L224] splverifierCounter = 0 Loop: [L226] COND TRUE 1 [L228] COND TRUE splverifierCounter < 4 [L234] tmp = __VERIFIER_nondet_int() [L236] COND FALSE !(\read(tmp)) [L244] tmp___0 = __VERIFIER_nondet_int() [L246] COND FALSE !(\read(tmp___0)) [L254] tmp___2 = __VERIFIER_nondet_int() [L256] COND TRUE \read(tmp___2) [L208] systemActive = 1 [L145] int retValue_acc ; [L148] retValue_acc = pumpRunning [L149] return (retValue_acc); [L437] switchedOnBeforeTS = isPumpRunning() [L64] COND FALSE !(\read(pumpRunning)) [L71] COND TRUE \read(systemActive) [L93] int tmp ; [L96] COND FALSE !(\read(pumpRunning)) [L443] int tmp ; [L444] int tmp___0 ; [L918] int retValue_acc ; [L921] retValue_acc = waterLevel [L922] return (retValue_acc); [L448] tmp = getWaterLevel() [L450] COND TRUE tmp != 2 [L145] int retValue_acc ; [L148] retValue_acc = pumpRunning [L149] return (retValue_acc); [L452] tmp___0 = isPumpRunning() [L454] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...