./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product25.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_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/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 b851c52b7518c206973c66938f52b25161fa3714 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:07:37,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:07:37,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:07:37,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:07:37,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:07:37,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:07:37,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:07:37,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:07:37,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:07:37,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:07:37,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:07:37,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:07:37,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:07:37,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:07:37,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:07:37,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:07:37,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:07:37,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:07:37,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:07:37,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:07:37,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:07:37,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:07:37,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:07:37,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:07:37,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:07:37,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:07:37,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:07:37,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:07:37,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:07:37,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:07:37,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:07:37,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:07:37,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:07:37,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:07:37,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:07:37,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:07:37,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:07:37,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:07:37,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:07:37,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:07:37,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:07:37,338 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 21:07:37,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:07:37,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:07:37,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:07:37,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:07:37,380 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:07:37,380 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:07:37,380 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:07:37,380 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:07:37,381 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:07:37,381 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:07:37,382 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:07:37,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:07:37,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:07:37,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:07:37,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:07:37,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:07:37,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:07:37,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:07:37,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:07:37,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:07:37,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:07:37,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:07:37,384 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:07:37,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:07:37,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:07:37,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:07:37,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:07:37,385 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:07:37,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:07:37,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:07:37,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:07:37,387 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:07:37,389 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:07:37,389 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_f7650280-39ea-48d2-870b-85c4cb1cfe3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b851c52b7518c206973c66938f52b25161fa3714 [2020-11-29 21:07:37,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:07:37,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:07:37,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:07:37,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:07:37,735 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:07:37,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c [2020-11-29 21:07:37,816 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/data/491b8bd04/dd1d67d0f6304b37b92da87e97534a8f/FLAG56f4a7a7f [2020-11-29 21:07:38,440 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:07:38,441 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c [2020-11-29 21:07:38,454 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/data/491b8bd04/dd1d67d0f6304b37b92da87e97534a8f/FLAG56f4a7a7f [2020-11-29 21:07:38,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/data/491b8bd04/dd1d67d0f6304b37b92da87e97534a8f [2020-11-29 21:07:38,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:07:38,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:07:38,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:07:38,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:07:38,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:07:38,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:07:38" (1/1) ... [2020-11-29 21:07:38,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f564c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:38, skipping insertion in model container [2020-11-29 21:07:38,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:07:38" (1/1) ... [2020-11-29 21:07:38,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:07:38,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:07:39,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:07:39,246 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:07:39,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:07:39,381 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:07:39,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39 WrapperNode [2020-11-29 21:07:39,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:07:39,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:07:39,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:07:39,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:07:39,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:07:39,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:07:39,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:07:39,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:07:39,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... [2020-11-29 21:07:39,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:07:39,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:07:39,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:07:39,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:07:39,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/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 21:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:07:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:07:40,613 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:07:40,616 INFO L298 CfgBuilder]: Removed 116 assume(true) statements. [2020-11-29 21:07:40,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:07:40 BoogieIcfgContainer [2020-11-29 21:07:40,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:07:40,620 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:07:40,621 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:07:40,624 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:07:40,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:07:40,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:07:38" (1/3) ... [2020-11-29 21:07:40,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ef29dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:07:40, skipping insertion in model container [2020-11-29 21:07:40,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:07:40,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:07:39" (2/3) ... [2020-11-29 21:07:40,629 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ef29dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:07:40, skipping insertion in model container [2020-11-29 21:07:40,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:07:40,629 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:07:40" (3/3) ... [2020-11-29 21:07:40,633 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product25.cil.c [2020-11-29 21:07:40,694 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:07:40,694 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:07:40,694 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:07:40,694 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:07:40,694 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:07:40,695 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:07:40,695 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:07:40,695 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:07:40,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2020-11-29 21:07:40,736 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 21:07:40,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:07:40,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:07:40,745 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:07:40,745 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:07:40,745 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:07:40,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2020-11-29 21:07:40,751 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 21:07:40,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:07:40,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:07:40,752 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:07:40,752 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:07:40,758 INFO L794 eck$LassoCheckResult]: Stem: 48#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 18#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 71#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 80#L75true main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 44#L425true assume 0 != main_~tmp~4; 72#L400true ~switchedOnBeforeTS~0 := 0; 73#L901true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 30#L922-1true [2020-11-29 21:07:40,758 INFO L796 eck$LassoCheckResult]: Loop: 30#L922-1true assume !false; 78#L287true assume test_~splverifierCounter~0 < 4; 20#L288true test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 13#L296true assume !(0 != test_~tmp~3); 9#L296-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 82#L306true assume !(0 != test_~tmp___0~1); 84#L306-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 69#L316true assume 0 != test_~tmp___2~0; 41#L322-2true havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 65#L213true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 56#L911true assume !(0 != ~pumpRunning~0); 53#L110true assume !(0 != ~systemActive~0); 46#L117true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3#L515true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 54#L922true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 30#L922-1true [2020-11-29 21:07:40,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:40,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 21:07:40,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:40,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002819669] [2020-11-29 21:07:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:41,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:41,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:41,224 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:07:41,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:41,226 INFO L82 PathProgramCache]: Analyzing trace with hash 94196910, now seen corresponding path program 1 times [2020-11-29 21:07:41,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:41,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588668465] [2020-11-29 21:07:41,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:41,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:41,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:41,274 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:07:41,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:41,276 INFO L82 PathProgramCache]: Analyzing trace with hash 2028222120, now seen corresponding path program 1 times [2020-11-29 21:07:41,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:41,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75416039] [2020-11-29 21:07:41,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:07:41,512 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 21:07:41,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75416039] [2020-11-29 21:07:41,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:07:41,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:07:41,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107424890] [2020-11-29 21:07:41,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:07:41,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:07:41,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:07:41,701 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 6 states. [2020-11-29 21:07:41,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:07:41,981 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2020-11-29 21:07:41,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:07:41,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 109 transitions. [2020-11-29 21:07:41,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 21:07:41,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2020-11-29 21:07:41,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2020-11-29 21:07:41,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2020-11-29 21:07:41,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2020-11-29 21:07:42,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:07:42,000 INFO L691 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 21:07:42,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2020-11-29 21:07:42,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-29 21:07:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-29 21:07:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2020-11-29 21:07:42,052 INFO L714 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 21:07:42,053 INFO L594 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 21:07:42,053 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:07:42,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2020-11-29 21:07:42,057 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 21:07:42,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:07:42,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:07:42,064 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:07:42,064 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 21:07:42,065 INFO L794 eck$LassoCheckResult]: Stem: 237#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 203#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 204#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 251#L75 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 233#L425 assume 0 != main_~tmp~4; 234#L400 ~switchedOnBeforeTS~0 := 0; 252#L901 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 216#L922-1 [2020-11-29 21:07:42,066 INFO L796 eck$LassoCheckResult]: Loop: 216#L922-1 assume !false; 217#L287 assume test_~splverifierCounter~0 < 4; 207#L288 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 201#L296 assume !(0 != test_~tmp~3); 195#L296-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 196#L306 assume !(0 != test_~tmp___0~1); 255#L306-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 250#L316 assume 0 != test_~tmp___2~0; 226#L322-2 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 230#L213 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 240#L911 assume !(0 != ~pumpRunning~0); 206#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 214#L142 assume !(0 != ~pumpRunning~0); 198#L117 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 183#L515 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 184#L922 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 216#L922-1 [2020-11-29 21:07:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:42,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 21:07:42,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:42,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719352456] [2020-11-29 21:07:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:42,130 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:42,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:42,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:07:42,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:42,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1401856251, now seen corresponding path program 1 times [2020-11-29 21:07:42,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:42,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818152515] [2020-11-29 21:07:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:42,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:42,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:42,248 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:07:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:42,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1576616885, now seen corresponding path program 1 times [2020-11-29 21:07:42,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:42,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847463154] [2020-11-29 21:07:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:07:42,353 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 21:07:42,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847463154] [2020-11-29 21:07:42,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:07:42,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:07:42,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593224887] [2020-11-29 21:07:42,458 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-11-29 21:07:42,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:07:42,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:07:42,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:07:42,556 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand 5 states. [2020-11-29 21:07:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:07:42,867 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2020-11-29 21:07:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:07:42,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2020-11-29 21:07:42,876 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2020-11-29 21:07:42,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2020-11-29 21:07:42,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2020-11-29 21:07:42,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2020-11-29 21:07:42,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2020-11-29 21:07:42,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:07:42,889 INFO L691 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2020-11-29 21:07:42,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2020-11-29 21:07:42,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2020-11-29 21:07:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-29 21:07:42,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2020-11-29 21:07:42,908 INFO L714 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2020-11-29 21:07:42,909 INFO L594 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2020-11-29 21:07:42,909 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 21:07:42,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2020-11-29 21:07:42,917 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2020-11-29 21:07:42,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:07:42,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:07:42,918 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:07:42,919 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:07:42,919 INFO L794 eck$LassoCheckResult]: Stem: 549#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 506#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 507#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 573#L75 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 542#L425 assume 0 != main_~tmp~4; 543#L400 ~switchedOnBeforeTS~0 := 0; 574#L901 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 519#L922-1 [2020-11-29 21:07:42,919 INFO L796 eck$LassoCheckResult]: Loop: 519#L922-1 assume !false; 520#L287 assume test_~splverifierCounter~0 < 4; 510#L288 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 501#L296 assume !(0 != test_~tmp~3); 495#L296-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 496#L306 assume !(0 != test_~tmp___0~1); 579#L306-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 572#L316 assume 0 != test_~tmp___2~0; 530#L322-2 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 538#L213 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 559#L911 assume !(0 != ~pumpRunning~0); 554#L110 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 517#L142 assume !(0 != ~pumpRunning~0); 498#L117 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 546#L515 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 555#L922 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 556#L213-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 547#L926 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 519#L922-1 [2020-11-29 21:07:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:42,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 21:07:42,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:42,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631505487] [2020-11-29 21:07:42,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:42,989 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:43,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:43,074 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:07:43,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:43,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1435857664, now seen corresponding path program 1 times [2020-11-29 21:07:43,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:43,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302325584] [2020-11-29 21:07:43,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:43,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:43,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:43,086 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:07:43,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:07:43,087 INFO L82 PathProgramCache]: Analyzing trace with hash 994612934, now seen corresponding path program 1 times [2020-11-29 21:07:43,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:07:43,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417978466] [2020-11-29 21:07:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:07:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:43,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:07:43,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:07:43,166 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:07:43,331 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-29 21:08:58,845 WARN L193 SmtUtils]: Spent 1.26 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 21:09:48,478 WARN L193 SmtUtils]: Spent 49.61 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 21:09:48,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 09:09:48 BoogieIcfgContainer [2020-11-29 21:09:48,745 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 21:09:48,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:09:48,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:09:48,746 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:09:48,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:07:40" (3/4) ... [2020-11-29 21:09:48,748 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 21:09:48,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f7650280-39ea-48d2-870b-85c4cb1cfe3b/bin/uautomizer/witness.graphml [2020-11-29 21:09:48,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:09:48,817 INFO L168 Benchmark]: Toolchain (without parser) took 130045.28 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 112.5 MB in the beginning and 66.5 MB in the end (delta: 46.0 MB). Peak memory consumption was 86.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:09:48,818 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 83.9 MB. Free memory was 42.2 MB in the beginning and 42.2 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:09:48,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.98 ms. Allocated memory is still 140.5 MB. Free memory was 112.5 MB in the beginning and 107.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:09:48,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.33 ms. Allocated memory is still 140.5 MB. Free memory was 107.3 MB in the beginning and 104.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:09:48,823 INFO L168 Benchmark]: Boogie Preprocessor took 68.34 ms. Allocated memory is still 140.5 MB. Free memory was 104.4 MB in the beginning and 102.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:09:48,823 INFO L168 Benchmark]: RCFGBuilder took 1080.12 ms. Allocated memory is still 140.5 MB. Free memory was 102.3 MB in the beginning and 92.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:09:48,824 INFO L168 Benchmark]: BuchiAutomizer took 128125.22 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 92.1 MB in the beginning and 68.6 MB in the end (delta: 23.5 MB). Peak memory consumption was 89.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:09:48,824 INFO L168 Benchmark]: Witness Printer took 69.84 ms. Allocated memory is still 182.5 MB. Free memory was 68.6 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:09:48,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 83.9 MB. Free memory was 42.2 MB in the beginning and 42.2 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 606.98 ms. Allocated memory is still 140.5 MB. Free memory was 112.5 MB in the beginning and 107.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.33 ms. Allocated memory is still 140.5 MB. Free memory was 107.3 MB in the beginning and 104.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.34 ms. Allocated memory is still 140.5 MB. Free memory was 104.4 MB in the beginning and 102.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1080.12 ms. Allocated memory is still 140.5 MB. Free memory was 102.3 MB in the beginning and 92.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128125.22 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 92.1 MB in the beginning and 68.6 MB in the end (delta: 23.5 MB). Peak memory consumption was 89.3 MB. Max. memory is 16.1 GB. * Witness Printer took 69.84 ms. Allocated memory is still 182.5 MB. Free memory was 68.6 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 127.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 260 SDtfs, 733 SDslu, 300 SDs, 0 SdLazy, 90 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 286]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24283} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=24283, NULL=0, NULL=24290, retValue_acc=0, NULL=0, NULL=24301, NULL=24306, NULL=0, NULL=24293, NULL=24300, methaneLevelCritical=0, tmp=1, tmp=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=24285, NULL=24308, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ede52d0=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66a18f8d=0, NULL=24298, switchedOnBeforeTS=0, NULL=24287, NULL=24297, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b171df2=0, NULL=24302, NULL=24299, \result=1, NULL=24284, head=0, pumpRunning=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fb73d59=0, NULL=24310, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22d5e86f=0, NULL=0, NULL=24309, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29fdb1a5=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6133b924=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22f391cf=62, NULL=24288, NULL=24286, NULL=0, NULL=0, NULL=24311, NULL=0, NULL=0, NULL=24296, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f02fd13=0, retValue_acc=1, tmp___2=62, NULL=0, tmp___0=0, NULL=24304, splverifierCounter=0, NULL=0, NULL=24289, NULL=24307, NULL=24294, tmp=0, head=0, NULL=0, NULL=24305, NULL=0, NULL=0, NULL=24303, NULL=0, NULL=24295, NULL=24292, NULL=24291, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L341] int cleanupTimeShifts = 4; [L440] int waterLevel = 1; [L441] int methaneLevelCritical = 0; [L698] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L895] int switchedOnBeforeTS ; [L416] int retValue_acc ; [L417] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L423] tmp = valid_product() [L425] COND TRUE \read(tmp) [L900] switchedOnBeforeTS = 0 [L277] int splverifierCounter ; [L278] int tmp ; [L279] int tmp___0 ; [L280] int tmp___1 ; [L281] int tmp___2 ; [L284] splverifierCounter = 0 Loop: [L286] COND TRUE 1 [L288] COND TRUE splverifierCounter < 4 [L294] tmp = __VERIFIER_nondet_int() [L296] COND FALSE !(\read(tmp)) [L304] tmp___0 = __VERIFIER_nondet_int() [L306] COND FALSE !(\read(tmp___0)) [L314] tmp___2 = __VERIFIER_nondet_int() [L316] COND TRUE \read(tmp___2) [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L909] switchedOnBeforeTS = isPumpRunning() [L110] COND FALSE !(\read(pumpRunning)) [L117] COND TRUE \read(systemActive) [L139] int tmp ; [L142] COND FALSE !(\read(pumpRunning)) [L915] int tmp ; [L916] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); [L920] tmp = getWaterLevel() [L922] COND TRUE tmp != 2 [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L924] tmp___0 = isPumpRunning() [L926] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...