./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.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_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/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 512e5cf92a225db6dbd0c8975a0c1a4cbe1a4a48 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:23:32,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:23:32,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:23:32,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:23:32,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:23:32,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:23:32,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:23:32,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:23:32,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:23:32,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:23:32,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:23:32,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:23:32,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:23:32,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:23:32,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:23:32,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:23:32,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:23:32,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:23:32,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:23:32,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:23:32,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:23:32,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:23:32,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:23:32,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:23:32,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:23:32,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:23:32,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:23:32,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:23:32,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:23:32,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:23:32,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:23:32,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:23:32,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:23:32,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:23:32,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:23:32,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:23:32,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:23:32,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:23:32,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:23:32,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:23:32,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:23:32,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:23:32,314 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:23:32,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:23:32,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:23:32,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:23:32,316 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:23:32,316 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:23:32,317 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:23:32,317 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:23:32,317 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:23:32,317 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:23:32,318 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:23:32,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:23:32,319 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:23:32,319 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:23:32,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:23:32,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:23:32,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:23:32,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:23:32,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:23:32,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:23:32,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:23:32,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:23:32,321 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:23:32,321 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:23:32,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:23:32,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:23:32,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:23:32,322 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:23:32,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:23:32,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:23:32,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:23:32,323 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:23:32,324 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:23:32,324 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_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 512e5cf92a225db6dbd0c8975a0c1a4cbe1a4a48 [2020-11-29 19:23:32,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:23:32,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:23:32,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:23:32,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:23:32,660 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:23:32,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2020-11-29 19:23:32,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/data/c14b5d999/89841d3265a0447ab03ac83d074aa210/FLAG57ce0e709 [2020-11-29 19:23:33,333 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:23:33,334 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2020-11-29 19:23:33,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/data/c14b5d999/89841d3265a0447ab03ac83d074aa210/FLAG57ce0e709 [2020-11-29 19:23:33,622 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/data/c14b5d999/89841d3265a0447ab03ac83d074aa210 [2020-11-29 19:23:33,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:23:33,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:23:33,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:23:33,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:23:33,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:23:33,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:23:33" (1/1) ... [2020-11-29 19:23:33,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fbde2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:33, skipping insertion in model container [2020-11-29 19:23:33,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:23:33" (1/1) ... [2020-11-29 19:23:33,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:23:33,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:23:34,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:23:34,022 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:23:34,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:23:34,168 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:23:34,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34 WrapperNode [2020-11-29 19:23:34,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:23:34,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:23:34,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:23:34,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:23:34,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:23:34,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:23:34,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:23:34,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:23:34,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... [2020-11-29 19:23:34,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:23:34,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:23:34,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:23:34,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:23:34,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:23:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:23:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:23:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:23:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:23:35,531 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:23:35,531 INFO L298 CfgBuilder]: Removed 138 assume(true) statements. [2020-11-29 19:23:35,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:35 BoogieIcfgContainer [2020-11-29 19:23:35,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:23:35,534 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:23:35,534 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:23:35,539 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:23:35,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:23:35,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:23:33" (1/3) ... [2020-11-29 19:23:35,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d07192f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:23:35, skipping insertion in model container [2020-11-29 19:23:35,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:23:35,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:34" (2/3) ... [2020-11-29 19:23:35,542 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d07192f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:23:35, skipping insertion in model container [2020-11-29 19:23:35,542 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:23:35,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:35" (3/3) ... [2020-11-29 19:23:35,543 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2020-11-29 19:23:35,593 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:23:35,593 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:23:35,593 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:23:35,593 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:23:35,593 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:23:35,594 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:23:35,594 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:23:35,594 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:23:35,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states. [2020-11-29 19:23:35,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-11-29 19:23:35,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:35,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:35,654 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:35,655 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:35,655 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:23:35,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states. [2020-11-29 19:23:35,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-11-29 19:23:35,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:35,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:35,662 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:35,662 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:35,667 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 96#L946true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 20#L954true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 92#L500true assume 0 != main_~tmp~3; 48#L471true ~switchedOnBeforeTS~0 := 0; 54#L881true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 99#L902-1true [2020-11-29 19:23:35,668 INFO L796 eck$LassoCheckResult]: Loop: 99#L902-1true assume !false; 47#L526true assume test_~splverifierCounter~0 < 4; 34#L527true test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 40#L535true assume !(0 != test_~tmp~4); 42#L535-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 62#L545true assume !(0 != test_~tmp___0~0); 64#L545-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 9#L555true assume 0 != test_~tmp___2~0; 81#L561-1true havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 89#L704true __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 98#L891true assume !(0 != ~pumpRunning~0); 36#L601true assume !(0 != ~systemActive~0); 74#L608true havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 5#L855true __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 97#L902true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 99#L902-1true [2020-11-29 19:23:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:35,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:23:35,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:35,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169726782] [2020-11-29 19:23:35,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:35,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:36,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:36,206 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:36,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:36,211 INFO L82 PathProgramCache]: Analyzing trace with hash -241460905, now seen corresponding path program 1 times [2020-11-29 19:23:36,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:36,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387707952] [2020-11-29 19:23:36,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:36,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:36,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:36,245 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:36,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1692564305, now seen corresponding path program 1 times [2020-11-29 19:23:36,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:36,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168809394] [2020-11-29 19:23:36,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:36,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168809394] [2020-11-29 19:23:36,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:36,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:23:36,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777840501] [2020-11-29 19:23:36,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:36,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:23:36,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:23:36,555 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 6 states. [2020-11-29 19:23:36,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:36,838 INFO L93 Difference]: Finished difference Result 241 states and 334 transitions. [2020-11-29 19:23:36,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:23:36,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 334 transitions. [2020-11-29 19:23:36,849 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 155 [2020-11-29 19:23:36,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 220 states and 313 transitions. [2020-11-29 19:23:36,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 220 [2020-11-29 19:23:36,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 220 [2020-11-29 19:23:36,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 220 states and 313 transitions. [2020-11-29 19:23:36,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:23:36,870 INFO L691 BuchiCegarLoop]: Abstraction has 220 states and 313 transitions. [2020-11-29 19:23:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states and 313 transitions. [2020-11-29 19:23:36,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 137. [2020-11-29 19:23:36,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-29 19:23:36,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 194 transitions. [2020-11-29 19:23:36,911 INFO L714 BuchiCegarLoop]: Abstraction has 137 states and 194 transitions. [2020-11-29 19:23:36,912 INFO L594 BuchiCegarLoop]: Abstraction has 137 states and 194 transitions. [2020-11-29 19:23:36,912 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:23:36,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 194 transitions. [2020-11-29 19:23:36,915 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2020-11-29 19:23:36,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:36,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:36,916 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:36,916 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 19:23:36,916 INFO L794 eck$LassoCheckResult]: Stem: 429#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 385#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 386#L946 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 402#L954 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 403#L500 assume 0 != main_~tmp~3; 364#L471 ~switchedOnBeforeTS~0 := 0; 365#L881 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 381#L902-1 [2020-11-29 19:23:36,917 INFO L796 eck$LassoCheckResult]: Loop: 381#L902-1 assume !false; 357#L526 assume test_~splverifierCounter~0 < 4; 358#L527 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 433#L535 assume !(0 != test_~tmp~4); 428#L535-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 417#L545 assume !(0 != test_~tmp___0~0); 419#L545-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 373#L555 assume 0 != test_~tmp___2~0; 375#L561-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 441#L704 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 442#L891 assume !(0 != ~pumpRunning~0); 396#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 407#L633 assume !(0 == ~pumpRunning~0); 409#L608 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 366#L855 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 367#L902 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 381#L902-1 [2020-11-29 19:23:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:36,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:23:36,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:36,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232331902] [2020-11-29 19:23:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:36,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,030 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:37,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:37,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1062877061, now seen corresponding path program 1 times [2020-11-29 19:23:37,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:37,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802940476] [2020-11-29 19:23:37,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:37,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802940476] [2020-11-29 19:23:37,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:37,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:37,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420181538] [2020-11-29 19:23:37,048 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:23:37,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:37,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:37,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:37,049 INFO L87 Difference]: Start difference. First operand 137 states and 194 transitions. cyclomatic complexity: 60 Second operand 3 states. [2020-11-29 19:23:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:37,137 INFO L93 Difference]: Finished difference Result 184 states and 248 transitions. [2020-11-29 19:23:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:37,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 248 transitions. [2020-11-29 19:23:37,140 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2020-11-29 19:23:37,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 248 transitions. [2020-11-29 19:23:37,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2020-11-29 19:23:37,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2020-11-29 19:23:37,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 248 transitions. [2020-11-29 19:23:37,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:23:37,144 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2020-11-29 19:23:37,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 248 transitions. [2020-11-29 19:23:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-29 19:23:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-29 19:23:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 248 transitions. [2020-11-29 19:23:37,167 INFO L714 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2020-11-29 19:23:37,168 INFO L594 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2020-11-29 19:23:37,168 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:23:37,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 248 transitions. [2020-11-29 19:23:37,170 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2020-11-29 19:23:37,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:37,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:37,172 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:37,173 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:37,173 INFO L794 eck$LassoCheckResult]: Stem: 759#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 712#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 713#L946 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 729#L954 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 730#L500 assume 0 != main_~tmp~3; 693#L471 ~switchedOnBeforeTS~0 := 0; 694#L881 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 708#L902-1 [2020-11-29 19:23:37,173 INFO L796 eck$LassoCheckResult]: Loop: 708#L902-1 assume !false; 788#L526 assume test_~splverifierCounter~0 < 4; 766#L527 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 767#L535 assume !(0 != test_~tmp~4); 754#L535-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 741#L545 assume !(0 != test_~tmp___0~0); 743#L545-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 700#L555 assume 0 != test_~tmp___2~0; 702#L561-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 856#L704 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 855#L891 assume !(0 != ~pumpRunning~0); 791#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 734#L633 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 735#L863 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 752#L868 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 727#L753 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 728#L753-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 731#L759 processEnvironment_#t~ret47 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret47;havoc processEnvironment_#t~ret47; 760#L637 assume !(0 != processEnvironment_~tmp~5); 755#L608 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 862#L855 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 786#L902 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 708#L902-1 [2020-11-29 19:23:37,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:37,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:23:37,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:37,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384200187] [2020-11-29 19:23:37,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,312 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:37,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:37,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1275820081, now seen corresponding path program 1 times [2020-11-29 19:23:37,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:37,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029130400] [2020-11-29 19:23:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:37,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:37,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029130400] [2020-11-29 19:23:37,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:37,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:23:37,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238947678] [2020-11-29 19:23:37,343 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:23:37,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:37,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:23:37,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:23:37,344 INFO L87 Difference]: Start difference. First operand 184 states and 248 transitions. cyclomatic complexity: 67 Second operand 5 states. [2020-11-29 19:23:37,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:37,543 INFO L93 Difference]: Finished difference Result 476 states and 629 transitions. [2020-11-29 19:23:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:23:37,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 476 states and 629 transitions. [2020-11-29 19:23:37,549 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 325 [2020-11-29 19:23:37,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 476 states to 476 states and 629 transitions. [2020-11-29 19:23:37,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 476 [2020-11-29 19:23:37,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 476 [2020-11-29 19:23:37,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 476 states and 629 transitions. [2020-11-29 19:23:37,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:23:37,563 INFO L691 BuchiCegarLoop]: Abstraction has 476 states and 629 transitions. [2020-11-29 19:23:37,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states and 629 transitions. [2020-11-29 19:23:37,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 361. [2020-11-29 19:23:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-11-29 19:23:37,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 474 transitions. [2020-11-29 19:23:37,601 INFO L714 BuchiCegarLoop]: Abstraction has 361 states and 474 transitions. [2020-11-29 19:23:37,601 INFO L594 BuchiCegarLoop]: Abstraction has 361 states and 474 transitions. [2020-11-29 19:23:37,601 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:23:37,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 474 transitions. [2020-11-29 19:23:37,604 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 264 [2020-11-29 19:23:37,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:37,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:37,609 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:37,609 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:37,609 INFO L794 eck$LassoCheckResult]: Stem: 1432#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 1388#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1389#L946 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1405#L954 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1406#L500 assume 0 != main_~tmp~3; 1369#L471 ~switchedOnBeforeTS~0 := 0; 1370#L881 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1384#L902-1 [2020-11-29 19:23:37,614 INFO L796 eck$LassoCheckResult]: Loop: 1384#L902-1 assume !false; 1360#L526 assume test_~splverifierCounter~0 < 4; 1361#L527 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 1696#L535 assume !(0 != test_~tmp~4); 1695#L535-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 1694#L545 assume !(0 != test_~tmp___0~0); 1692#L545-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 1690#L555 assume 0 != test_~tmp___2~0; 1689#L561-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1688#L704 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 1687#L891 assume !(0 != ~pumpRunning~0); 1442#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1410#L633 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1411#L863 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1426#L868 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 1403#L753 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1404#L753-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1409#L759 processEnvironment_#t~ret47 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret47;havoc processEnvironment_#t~ret47; 1433#L637 assume !(0 != processEnvironment_~tmp~5); 1430#L608 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1447#L855 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 1461#L902 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1460#L704-1 __utac_acc__Specification5_spec__3_#t~ret79 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1383#L906 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1384#L902-1 [2020-11-29 19:23:37,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:37,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 19:23:37,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:37,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759810773] [2020-11-29 19:23:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,699 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,710 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:37,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1997403212, now seen corresponding path program 1 times [2020-11-29 19:23:37,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:37,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362381904] [2020-11-29 19:23:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,723 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,735 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:37,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:37,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1856809874, now seen corresponding path program 1 times [2020-11-29 19:23:37,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:37,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729095880] [2020-11-29 19:23:37,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:37,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:37,825 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:38,004 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-11-29 19:24:43,586 WARN L193 SmtUtils]: Spent 1.09 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:25:31,170 WARN L193 SmtUtils]: Spent 47.57 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:25:31,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:25:31 BoogieIcfgContainer [2020-11-29 19:25:31,465 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:25:31,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:25:31,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:25:31,466 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:25:31,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:35" (3/4) ... [2020-11-29 19:25:31,469 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:25:31,521 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53df3c83-e0c3-4e17-8f08-8a1f0a5b5c87/bin/uautomizer/witness.graphml [2020-11-29 19:25:31,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:25:31,523 INFO L168 Benchmark]: Toolchain (without parser) took 117896.02 ms. Allocated memory was 138.4 MB in the beginning and 218.1 MB in the end (delta: 79.7 MB). Free memory was 105.7 MB in the beginning and 118.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 65.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,523 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 81.8 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:25:31,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.41 ms. Allocated memory is still 138.4 MB. Free memory was 105.4 MB in the beginning and 101.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.80 ms. Allocated memory is still 138.4 MB. Free memory was 101.5 MB in the beginning and 98.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,525 INFO L168 Benchmark]: Boogie Preprocessor took 43.08 ms. Allocated memory is still 138.4 MB. Free memory was 98.2 MB in the beginning and 96.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,525 INFO L168 Benchmark]: RCFGBuilder took 1250.42 ms. Allocated memory was 138.4 MB in the beginning and 174.1 MB in the end (delta: 35.7 MB). Free memory was 96.1 MB in the beginning and 113.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,526 INFO L168 Benchmark]: BuchiAutomizer took 115931.52 ms. Allocated memory was 174.1 MB in the beginning and 218.1 MB in the end (delta: 44.0 MB). Free memory was 113.7 MB in the beginning and 121.2 MB in the end (delta: -7.5 MB). Peak memory consumption was 96.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,526 INFO L168 Benchmark]: Witness Printer took 55.75 ms. Allocated memory is still 218.1 MB. Free memory was 121.2 MB in the beginning and 118.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 81.8 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.41 ms. Allocated memory is still 138.4 MB. Free memory was 105.4 MB in the beginning and 101.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.80 ms. Allocated memory is still 138.4 MB. Free memory was 101.5 MB in the beginning and 98.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.08 ms. Allocated memory is still 138.4 MB. Free memory was 98.2 MB in the beginning and 96.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1250.42 ms. Allocated memory was 138.4 MB in the beginning and 174.1 MB in the end (delta: 35.7 MB). Free memory was 96.1 MB in the beginning and 113.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 115931.52 ms. Allocated memory was 174.1 MB in the beginning and 218.1 MB in the end (delta: 44.0 MB). Free memory was 113.7 MB in the beginning and 121.2 MB in the end (delta: -7.5 MB). Peak memory consumption was 96.8 MB. Max. memory is 16.1 GB. * Witness Printer took 55.75 ms. Allocated memory is still 218.1 MB. Free memory was 121.2 MB in the beginning and 118.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 361 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 115.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 114.9s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 198 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 361 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 422 SDtfs, 993 SDslu, 1103 SDs, 0 SdLazy, 138 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 525]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14802} State at position 1 is {NULL=0, NULL=14815, NULL=0, NULL=14802, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b60ad5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3897c5cb=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c010450=0, methaneLevelCritical=0, retValue_acc=1, tmp=0, NULL=0, NULL=14828, tmp___1=0, NULL=14829, retValue_acc=0, NULL=0, NULL=14820, NULL=14813, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50d314a=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c0bedc3=0, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=14814, tmp=1, NULL=14817, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71597cd4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cf4d357=0, NULL=0, \result=1, NULL=14809, NULL=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, NULL=14819, NULL=14824, NULL=14822, NULL=14811, head=0, NULL=0, NULL=0, tmp=0, NULL=14825, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58e1902e=0, NULL=0, NULL=14830, NULL=14812, NULL=14816, NULL=14810, tmp___0=0, tmp=1, NULL=0, NULL=0, NULL=14818, NULL=14806, switchedOnBeforeTS=0, NULL=14821, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58055981=0, \result=0, NULL=14826, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f66146f=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=14804, tmp___0=0, \result=0, NULL=0, NULL=14805, NULL=14823, tmp___2=76, splverifierCounter=0, NULL=0, NULL=0, NULL=14807, NULL=14808, NULL=14827, NULL=14803, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L589] int pumpRunning = 0; [L590] int systemActive = 1; [L780] int waterLevel = 1; [L781] int methaneLevelCritical = 0; [L875] int switchedOnBeforeTS ; [L491] int retValue_acc ; [L492] int tmp ; [L950] int retValue_acc ; [L953] retValue_acc = 1 [L954] return (retValue_acc); [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L880] switchedOnBeforeTS = 0 [L516] int splverifierCounter ; [L517] int tmp ; [L518] int tmp___0 ; [L519] int tmp___1 ; [L520] int tmp___2 ; [L523] splverifierCounter = 0 Loop: [L525] COND TRUE 1 [L527] COND TRUE splverifierCounter < 4 [L533] tmp = __VERIFIER_nondet_int() [L535] COND FALSE !(\read(tmp)) [L543] tmp___0 = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp___0)) [L553] tmp___2 = __VERIFIER_nondet_int() [L555] COND TRUE \read(tmp___2) [L700] int retValue_acc ; [L703] retValue_acc = pumpRunning [L704] return (retValue_acc); [L889] switchedOnBeforeTS = isPumpRunning() [L601] COND FALSE !(\read(pumpRunning)) [L608] COND TRUE \read(systemActive) [L630] int tmp ; [L633] COND TRUE ! pumpRunning [L745] int retValue_acc ; [L746] int tmp ; [L747] int tmp___0 ; [L860] int retValue_acc ; [L863] COND TRUE waterLevel < 2 [L864] retValue_acc = 1 [L865] return (retValue_acc); [L751] tmp = isHighWaterSensorDry() [L753] COND TRUE \read(tmp) [L754] tmp___0 = 0 [L758] retValue_acc = tmp___0 [L759] return (retValue_acc); [L635] tmp = isHighWaterLevel() [L637] COND FALSE !(\read(tmp)) [L895] int tmp ; [L896] int tmp___0 ; [L851] int retValue_acc ; [L854] retValue_acc = waterLevel [L855] return (retValue_acc); [L900] tmp = getWaterLevel() [L902] COND TRUE tmp != 2 [L700] int retValue_acc ; [L703] retValue_acc = pumpRunning [L704] return (retValue_acc); [L904] tmp___0 = isPumpRunning() [L906] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...