./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.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_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/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 15f9bfbb11bcf46fb604afe26b15207926ff78e9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:24:31,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:24:31,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:24:31,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:24:31,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:24:31,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:24:31,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:24:31,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:24:31,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:24:31,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:24:31,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:24:31,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:24:31,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:24:31,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:24:31,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:24:31,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:24:31,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:24:31,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:24:31,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:24:31,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:24:31,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:24:31,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:24:31,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:24:31,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:24:31,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:24:31,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:24:31,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:24:31,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:24:31,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:24:31,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:24:31,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:24:31,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:24:31,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:24:31,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:24:31,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:24:31,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:24:31,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:24:31,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:24:31,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:24:31,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:24:31,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:24:31,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:24:31,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:24:31,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:24:31,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:24:31,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:24:31,385 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:24:31,385 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:24:31,386 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:24:31,386 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:24:31,386 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:24:31,387 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:24:31,388 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:24:31,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:24:31,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:24:31,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:24:31,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:24:31,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:24:31,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:24:31,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:24:31,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:24:31,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:24:31,391 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:24:31,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:24:31,392 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:24:31,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:24:31,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:24:31,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:24:31,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:24:31,393 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:24:31,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:24:31,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:24:31,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:24:31,395 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:24:31,397 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:24:31,397 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_29408744-7f7c-4e2c-9b1e-f3fa272379e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15f9bfbb11bcf46fb604afe26b15207926ff78e9 [2020-11-29 20:24:31,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:24:31,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:24:31,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:24:31,755 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:24:31,760 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:24:31,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2020-11-29 20:24:31,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/data/69976e28e/916caea54f8740798283f08397b63781/FLAGc8c3e0d2b [2020-11-29 20:24:32,515 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:24:32,516 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2020-11-29 20:24:32,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/data/69976e28e/916caea54f8740798283f08397b63781/FLAGc8c3e0d2b [2020-11-29 20:24:32,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/data/69976e28e/916caea54f8740798283f08397b63781 [2020-11-29 20:24:32,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:24:32,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:24:32,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:32,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:24:32,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:24:32,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:32" (1/1) ... [2020-11-29 20:24:32,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa6fbf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:32, skipping insertion in model container [2020-11-29 20:24:32,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:32" (1/1) ... [2020-11-29 20:24:32,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:24:32,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:24:33,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:33,362 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:24:33,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:33,548 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:24:33,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33 WrapperNode [2020-11-29 20:24:33,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:33,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:33,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:24:33,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:24:33,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:33,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:24:33,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:24:33,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:24:33,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... [2020-11-29 20:24:33,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:24:33,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:24:33,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:24:33,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:24:33,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/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 20:24:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:24:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:24:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:24:33,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:24:34,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:24:34,857 INFO L298 CfgBuilder]: Removed 118 assume(true) statements. [2020-11-29 20:24:34,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:34 BoogieIcfgContainer [2020-11-29 20:24:34,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:24:34,861 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:24:34,862 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:24:34,866 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:24:34,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:24:34,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:24:32" (1/3) ... [2020-11-29 20:24:34,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f958c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:24:34, skipping insertion in model container [2020-11-29 20:24:34,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:24:34,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:33" (2/3) ... [2020-11-29 20:24:34,871 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f958c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:24:34, skipping insertion in model container [2020-11-29 20:24:34,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:24:34,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:34" (3/3) ... [2020-11-29 20:24:34,876 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product06.cil.c [2020-11-29 20:24:34,951 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:24:34,951 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:24:34,951 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:24:34,951 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:24:34,952 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:24:34,952 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:24:34,952 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:24:34,953 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:24:34,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-29 20:24:34,990 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 20:24:34,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:24:34,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:24:34,998 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:34,998 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:34,998 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:24:34,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-29 20:24:35,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 20:24:35,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:24:35,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:24:35,006 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:35,007 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:35,013 INFO L794 eck$LassoCheckResult]: Stem: 41#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 27#L153true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 43#L161true main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 67#L470true assume 0 != main_~tmp~2; 75#L445true ~switchedOnBeforeTS~0 := 0; 55#L491true havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 39#L512-1true [2020-11-29 20:24:35,014 INFO L796 eck$LassoCheckResult]: Loop: 39#L512-1true assume !false; 40#L180true assume test_~splverifierCounter~0 < 4; 73#L181true test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 68#L189true assume !(0 != test_~tmp~0); 65#L189-1true test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 53#L199true assume !(0 != test_~tmp___0~0); 52#L199-1true test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 32#L209true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 56#L217-2true havoc __utac_acc__Specification5_spec__2_#t~ret41;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; 46#L337true __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 37#L501true assume !(0 != ~pumpRunning~0); 8#L252true assume !(0 != ~systemActive~0); 25#L259true havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 64#L123true __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 35#L512true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 39#L512-1true [2020-11-29 20:24:35,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:35,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 20:24:35,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:35,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023625468] [2020-11-29 20:24:35,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:35,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:35,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:35,628 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:24:35,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:35,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1011068559, now seen corresponding path program 1 times [2020-11-29 20:24:35,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:35,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161817398] [2020-11-29 20:24:35,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:35,757 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 20:24:35,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161817398] [2020-11-29 20:24:35,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:35,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:35,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336105192] [2020-11-29 20:24:35,769 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:24:35,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:35,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:35,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:35,813 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 3 states. [2020-11-29 20:24:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:35,885 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2020-11-29 20:24:35,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:35,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 101 transitions. [2020-11-29 20:24:35,896 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 20:24:35,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2020-11-29 20:24:35,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2020-11-29 20:24:35,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-11-29 20:24:35,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2020-11-29 20:24:35,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:24:35,915 INFO L691 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-29 20:24:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2020-11-29 20:24:35,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-29 20:24:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 20:24:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2020-11-29 20:24:35,956 INFO L714 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-29 20:24:35,956 INFO L594 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-29 20:24:35,956 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:24:35,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2020-11-29 20:24:35,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 20:24:35,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:24:35,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:24:35,961 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:35,961 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 20:24:35,962 INFO L794 eck$LassoCheckResult]: Stem: 216#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 174#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 175#L153 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 198#L161 main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 217#L470 assume 0 != main_~tmp~2; 226#L445 ~switchedOnBeforeTS~0 := 0; 225#L491 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 200#L512-1 [2020-11-29 20:24:35,962 INFO L796 eck$LassoCheckResult]: Loop: 200#L512-1 assume !false; 213#L180 assume test_~splverifierCounter~0 < 4; 214#L181 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 227#L189 assume !(0 != test_~tmp~0); 219#L189-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 223#L199 assume !(0 != test_~tmp___0~0); 222#L199-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 205#L209 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 207#L217-2 havoc __utac_acc__Specification5_spec__2_#t~ret41;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; 220#L337 __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 212#L501 assume !(0 != ~pumpRunning~0); 172#L252 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 173#L284 assume !(0 != ~pumpRunning~0); 184#L259 havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 195#L123 __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 209#L512 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 200#L512-1 [2020-11-29 20:24:35,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:35,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 20:24:35,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:35,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249811592] [2020-11-29 20:24:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:36,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:36,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:36,217 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:24:36,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:36,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1257825733, now seen corresponding path program 1 times [2020-11-29 20:24:36,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:36,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809376597] [2020-11-29 20:24:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:36,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:36,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:36,253 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:24:36,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:36,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1083065099, now seen corresponding path program 1 times [2020-11-29 20:24:36,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:36,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464331927] [2020-11-29 20:24:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:36,409 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 20:24:36,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464331927] [2020-11-29 20:24:36,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:36,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:36,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392003426] [2020-11-29 20:24:36,556 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-29 20:24:36,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:36,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:24:36,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:36,667 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand 5 states. [2020-11-29 20:24:36,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:36,967 INFO L93 Difference]: Finished difference Result 188 states and 255 transitions. [2020-11-29 20:24:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:24:36,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 255 transitions. [2020-11-29 20:24:36,984 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2020-11-29 20:24:36,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 188 states and 255 transitions. [2020-11-29 20:24:36,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2020-11-29 20:24:36,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2020-11-29 20:24:36,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 255 transitions. [2020-11-29 20:24:37,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:24:37,001 INFO L691 BuchiCegarLoop]: Abstraction has 188 states and 255 transitions. [2020-11-29 20:24:37,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 255 transitions. [2020-11-29 20:24:37,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 129. [2020-11-29 20:24:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-29 20:24:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2020-11-29 20:24:37,027 INFO L714 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2020-11-29 20:24:37,027 INFO L594 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2020-11-29 20:24:37,027 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:24:37,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 172 transitions. [2020-11-29 20:24:37,035 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2020-11-29 20:24:37,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:24:37,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:24:37,041 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:37,042 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 20:24:37,042 INFO L794 eck$LassoCheckResult]: Stem: 489#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 450#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 451#L153 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 470#L161 main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 490#L470 assume 0 != main_~tmp~2; 507#L445 ~switchedOnBeforeTS~0 := 0; 501#L491 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 472#L512-1 [2020-11-29 20:24:37,043 INFO L796 eck$LassoCheckResult]: Loop: 472#L512-1 assume !false; 486#L180 assume test_~splverifierCounter~0 < 4; 487#L181 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 562#L189 assume !(0 != test_~tmp~0); 561#L189-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 560#L199 assume !(0 != test_~tmp___0~0); 558#L199-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 557#L209 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 555#L217-2 havoc __utac_acc__Specification5_spec__2_#t~ret41;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; 554#L337 __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 553#L501 assume !(0 != ~pumpRunning~0); 551#L252 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 549#L284 assume !(0 != ~pumpRunning~0); 547#L259 havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 504#L123 __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 481#L512 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;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; 482#L337-1 __utac_acc__Specification5_spec__3_#t~ret43 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 471#L516 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 472#L512-1 [2020-11-29 20:24:37,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:37,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 20:24:37,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:37,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663559981] [2020-11-29 20:24:37,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:37,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:37,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:37,209 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:24:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:37,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1884702976, now seen corresponding path program 1 times [2020-11-29 20:24:37,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:37,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077975514] [2020-11-29 20:24:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:37,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:37,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:37,226 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:24:37,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:37,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1443458246, now seen corresponding path program 1 times [2020-11-29 20:24:37,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:37,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253333848] [2020-11-29 20:24:37,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:37,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:37,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:37,361 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:24:37,512 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-29 20:26:18,113 WARN L193 SmtUtils]: Spent 1.68 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 20:27:32,483 WARN L193 SmtUtils]: Spent 1.24 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 20:27:32,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:27:32 BoogieIcfgContainer [2020-11-29 20:27:32,648 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:27:32,648 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:27:32,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:27:32,649 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:27:32,649 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:34" (3/4) ... [2020-11-29 20:27:32,654 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:27:32,711 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_29408744-7f7c-4e2c-9b1e-f3fa272379e4/bin/uautomizer/witness.graphml [2020-11-29 20:27:32,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:27:32,712 INFO L168 Benchmark]: Toolchain (without parser) took 179870.62 ms. Allocated memory was 107.0 MB in the beginning and 161.5 MB in the end (delta: 54.5 MB). Free memory was 77.9 MB in the beginning and 51.8 MB in the end (delta: 26.1 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:32,713 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 107.0 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:27:32,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.55 ms. Allocated memory is still 107.0 MB. Free memory was 77.9 MB in the beginning and 73.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:32,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.62 ms. Allocated memory is still 107.0 MB. Free memory was 73.2 MB in the beginning and 70.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:32,715 INFO L168 Benchmark]: Boogie Preprocessor took 48.17 ms. Allocated memory is still 107.0 MB. Free memory was 69.8 MB in the beginning and 67.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:32,715 INFO L168 Benchmark]: RCFGBuilder took 1156.79 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 67.7 MB in the beginning and 86.1 MB in the end (delta: -18.4 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:32,716 INFO L168 Benchmark]: BuchiAutomizer took 177786.62 ms. Allocated memory was 130.0 MB in the beginning and 161.5 MB in the end (delta: 31.5 MB). Free memory was 85.5 MB in the beginning and 53.9 MB in the end (delta: 31.6 MB). Peak memory consumption was 82.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:27:32,717 INFO L168 Benchmark]: Witness Printer took 62.64 ms. Allocated memory is still 161.5 MB. Free memory was 53.9 MB in the beginning and 51.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:27:32,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 107.0 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 705.55 ms. Allocated memory is still 107.0 MB. Free memory was 77.9 MB in the beginning and 73.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.62 ms. Allocated memory is still 107.0 MB. Free memory was 73.2 MB in the beginning and 70.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.17 ms. Allocated memory is still 107.0 MB. Free memory was 69.8 MB in the beginning and 67.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1156.79 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 67.7 MB in the beginning and 86.1 MB in the end (delta: -18.4 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 177786.62 ms. Allocated memory was 130.0 MB in the beginning and 161.5 MB in the end (delta: 31.5 MB). Free memory was 85.5 MB in the beginning and 53.9 MB in the end (delta: 31.6 MB). Peak memory consumption was 82.1 MB. Max. memory is 16.1 GB. * Witness Printer took 62.64 ms. Allocated memory is still 161.5 MB. Free memory was 53.9 MB in the beginning and 51.8 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 5 locations. The remainder module has 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 177.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 177.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 59 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 241 SDtfs, 372 SDslu, 272 SDs, 0 SdLazy, 70 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 179]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9688} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bb88c67=0, NULL=0, NULL=0, NULL=0, NULL=9699, NULL=0, NULL=9688, NULL=9703, retValue_acc=0, NULL=9698, NULL=9708, NULL=9700, methaneLevelCritical=0, NULL=9716, NULL=9692, tmp=1, NULL=0, NULL=9695, NULL=0, NULL=0, tmp___1=0, NULL=9711, NULL=0, NULL=0, NULL=0, NULL=9694, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=9712, NULL=9710, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@196f224b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7457ceb9=0, NULL=9713, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=9715, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d0fe3ed=0, tmp___0=0, NULL=9689, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, tmp___0=0, NULL=9707, NULL=9701, tmp=1, NULL=0, NULL=0, NULL=0, NULL=9697, retValue_acc=1, NULL=9702, NULL=0, NULL=0, NULL=9704, NULL=0, NULL=0, NULL=9693, NULL=0, tmp___2=81, NULL=0, splverifierCounter=0, NULL=0, NULL=9709, NULL=9714, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a467402=0, NULL=9705, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71d8e368=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9a6de70=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@475f8b1b=81, NULL=9706, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a2d230a=0, NULL=0, NULL=0, NULL=9696, NULL=0, NULL=9691, NULL=9690, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L240] int pumpRunning = 0; [L241] int systemActive = 1; [L386] int cleanupTimeShifts = 4; [L485] int switchedOnBeforeTS ; [L703] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L461] int retValue_acc ; [L462] int tmp ; [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); [L468] tmp = valid_product() [L470] COND TRUE \read(tmp) [L490] switchedOnBeforeTS = 0 [L170] int splverifierCounter ; [L171] int tmp ; [L172] int tmp___0 ; [L173] int tmp___1 ; [L174] int tmp___2 ; [L177] splverifierCounter = 0 Loop: [L179] COND TRUE 1 [L181] COND TRUE splverifierCounter < 4 [L187] tmp = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp)) [L197] tmp___0 = __VERIFIER_nondet_int() [L199] COND FALSE !(\read(tmp___0)) [L207] tmp___2 = __VERIFIER_nondet_int() [L209] COND TRUE \read(tmp___2) [L381] systemActive = 1 [L333] int retValue_acc ; [L336] retValue_acc = pumpRunning [L337] return (retValue_acc); [L499] switchedOnBeforeTS = isPumpRunning() [L252] COND FALSE !(\read(pumpRunning)) [L259] COND TRUE \read(systemActive) [L281] int tmp ; [L284] COND FALSE !(\read(pumpRunning)) [L505] int tmp ; [L506] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L510] tmp = getWaterLevel() [L512] COND TRUE tmp != 2 [L333] int retValue_acc ; [L336] retValue_acc = pumpRunning [L337] return (retValue_acc); [L514] tmp___0 = isPumpRunning() [L516] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...