./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/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 a1351cae46a0bf53747c47a3bd817fbc84c54eae ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 15:49:39,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:49:39,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:49:39,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:49:39,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:49:39,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:49:39,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:49:39,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:49:39,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:49:39,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:49:39,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:49:39,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:49:39,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:49:39,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:49:39,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:49:39,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:49:39,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:49:39,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:49:39,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:49:39,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:49:39,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:49:39,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:49:39,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:49:39,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:49:39,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:49:39,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:49:39,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:49:39,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:49:39,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:49:39,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:49:39,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:49:39,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:49:39,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:49:39,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:49:39,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:49:39,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:49:39,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:49:39,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:49:39,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:49:39,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:49:39,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:49:39,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:49:39,521 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:49:39,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:49:39,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:49:39,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:49:39,526 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:49:39,526 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:49:39,526 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:49:39,526 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:49:39,527 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:49:39,527 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:49:39,528 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:49:39,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:49:39,529 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:49:39,529 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:49:39,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:49:39,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:49:39,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:49:39,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:49:39,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:49:39,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:49:39,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:49:39,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:49:39,531 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:49:39,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:49:39,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:49:39,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:49:39,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:49:39,532 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:49:39,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:49:39,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:49:39,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:49:39,533 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:49:39,535 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:49:39,536 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_0923cc81-d865-40a8-a510-faece86b885f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1351cae46a0bf53747c47a3bd817fbc84c54eae [2020-12-01 15:49:39,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:49:39,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:49:39,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:49:39,917 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:49:39,918 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:49:39,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2020-12-01 15:49:39,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/data/669b4678e/29abe0dd054442c19fe5d03d57941518/FLAG71c52a9b0 [2020-12-01 15:49:40,575 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:49:40,576 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2020-12-01 15:49:40,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/data/669b4678e/29abe0dd054442c19fe5d03d57941518/FLAG71c52a9b0 [2020-12-01 15:49:40,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/data/669b4678e/29abe0dd054442c19fe5d03d57941518 [2020-12-01 15:49:40,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:49:40,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:49:40,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:49:40,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:49:40,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:49:40,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:49:40" (1/1) ... [2020-12-01 15:49:40,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9d6f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:40, skipping insertion in model container [2020-12-01 15:49:40,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:49:40" (1/1) ... [2020-12-01 15:49:40,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:49:40,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:49:41,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:49:41,314 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:49:41,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:49:41,485 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:49:41,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41 WrapperNode [2020-12-01 15:49:41,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:49:41,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:49:41,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:49:41,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:49:41,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:49:41,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:49:41,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:49:41,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:49:41,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... [2020-12-01 15:49:41,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:49:41,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:49:41,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:49:41,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:49:41,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/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 [2020-12-01 15:49:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:49:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:49:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:49:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:49:43,213 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:49:43,214 INFO L298 CfgBuilder]: Removed 354 assume(true) statements. [2020-12-01 15:49:43,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:49:43 BoogieIcfgContainer [2020-12-01 15:49:43,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:49:43,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:49:43,219 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:49:43,222 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:49:43,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:49:43,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:49:40" (1/3) ... [2020-12-01 15:49:43,224 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a1b7929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:49:43, skipping insertion in model container [2020-12-01 15:49:43,225 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:49:43,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:49:41" (2/3) ... [2020-12-01 15:49:43,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a1b7929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:49:43, skipping insertion in model container [2020-12-01 15:49:43,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:49:43,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:49:43" (3/3) ... [2020-12-01 15:49:43,229 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2020-12-01 15:49:43,284 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:49:43,284 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:49:43,285 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:49:43,285 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:49:43,285 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:49:43,285 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:49:43,285 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:49:43,285 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:49:43,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states. [2020-12-01 15:49:43,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2020-12-01 15:49:43,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:49:43,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:49:43,398 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:49:43,398 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:49:43,398 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:49:43,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states. [2020-12-01 15:49:43,417 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2020-12-01 15:49:43,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:49:43,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:49:43,419 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:49:43,419 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:49:43,434 INFO L794 eck$LassoCheckResult]: Stem: 47#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);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~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);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);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 15#L76true 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; 97#L84true main_#t~ret82 := valid_product_#res;main_~tmp~11 := main_#t~ret82;havoc main_#t~ret82; 139#L986true assume 0 != main_~tmp~11; 58#L963true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 163#L520-1true [2020-12-01 15:49:43,435 INFO L796 eck$LassoCheckResult]: Loop: 163#L520-1true assume !false; 88#L354true assume test_~splverifierCounter~0 < 4; 151#L355true test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 63#L363true assume !(0 != test_~tmp~6); 64#L363-1true test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 32#L373true assume !(0 != test_~tmp___0~2); 11#L373-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 142#L383true assume 0 != test_~tmp___2~0; 35#L389-2true assume !(0 != ~pumpRunning~0); 188#L107true assume !(0 != ~systemActive~0); 28#L114true havoc __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 57#L484true __utac_acc__Specification4_spec__1_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret45;havoc __utac_acc__Specification4_spec__1_#t~ret45; 161#L520true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 163#L520-1true [2020-12-01 15:49:43,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:49:43,447 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-12-01 15:49:43,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:49:43,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839607182] [2020-12-01 15:49:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:49:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:43,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:43,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:43,973 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:49:43,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:49:43,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1675126780, now seen corresponding path program 1 times [2020-12-01 15:49:43,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:49:43,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584936160] [2020-12-01 15:49:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:49:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:43,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:44,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:44,020 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:49:44,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:49:44,034 INFO L82 PathProgramCache]: Analyzing trace with hash 39152158, now seen corresponding path program 1 times [2020-12-01 15:49:44,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:49:44,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890428111] [2020-12-01 15:49:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:49:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:49:44,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:49:44,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890428111] [2020-12-01 15:49:44,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:49:44,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:49:44,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123046235] [2020-12-01 15:49:44,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:49:44,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:49:44,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:49:44,287 INFO L87 Difference]: Start difference. First operand 225 states. Second operand 6 states. [2020-12-01 15:49:44,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:49:44,567 INFO L93 Difference]: Finished difference Result 222 states and 322 transitions. [2020-12-01 15:49:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:49:44,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 322 transitions. [2020-12-01 15:49:44,572 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2020-12-01 15:49:44,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 215 states and 315 transitions. [2020-12-01 15:49:44,580 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2020-12-01 15:49:44,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2020-12-01 15:49:44,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 315 transitions. [2020-12-01 15:49:44,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:49:44,585 INFO L692 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2020-12-01 15:49:44,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 315 transitions. [2020-12-01 15:49:44,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-12-01 15:49:44,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-12-01 15:49:44,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2020-12-01 15:49:44,626 INFO L715 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2020-12-01 15:49:44,626 INFO L595 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2020-12-01 15:49:44,626 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:49:44,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 315 transitions. [2020-12-01 15:49:44,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2020-12-01 15:49:44,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:49:44,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:49:44,630 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:49:44,630 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:49:44,630 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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);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~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);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);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 478#L-1 havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 479#L76 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; 488#L84 main_#t~ret82 := valid_product_#res;main_~tmp~11 := main_#t~ret82;havoc main_#t~ret82; 623#L986 assume 0 != main_~tmp~11; 571#L963 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 572#L520-1 [2020-12-01 15:49:44,630 INFO L796 eck$LassoCheckResult]: Loop: 572#L520-1 assume !false; 609#L354 assume test_~splverifierCounter~0 < 4; 610#L355 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 579#L363 assume !(0 != test_~tmp~6); 581#L363-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 515#L373 assume !(0 != test_~tmp___0~2); 480#L373-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 481#L383 assume 0 != test_~tmp___2~0; 523#L389-2 assume !(0 != ~pumpRunning~0); 524#L107 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 526#L191 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 527#L165-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 568#L139-3 assume !(0 == ~pumpRunning~0); 508#L114 havoc __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 509#L484 __utac_acc__Specification4_spec__1_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret45;havoc __utac_acc__Specification4_spec__1_#t~ret45; 570#L520 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 572#L520-1 [2020-12-01 15:49:44,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:49:44,631 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-12-01 15:49:44,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:49:44,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423237918] [2020-12-01 15:49:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:49:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:44,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:44,752 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:44,786 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:49:44,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:49:44,793 INFO L82 PathProgramCache]: Analyzing trace with hash 391395523, now seen corresponding path program 1 times [2020-12-01 15:49:44,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:49:44,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654836621] [2020-12-01 15:49:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:49:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:49:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:49:44,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654836621] [2020-12-01 15:49:44,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:49:44,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:49:44,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967370312] [2020-12-01 15:49:44,829 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:49:44,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:49:44,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:49:44,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:49:44,834 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. cyclomatic complexity: 102 Second operand 3 states. [2020-12-01 15:49:45,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:49:45,009 INFO L93 Difference]: Finished difference Result 211 states and 291 transitions. [2020-12-01 15:49:45,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:49:45,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 291 transitions. [2020-12-01 15:49:45,023 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2020-12-01 15:49:45,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 291 transitions. [2020-12-01 15:49:45,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2020-12-01 15:49:45,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2020-12-01 15:49:45,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 291 transitions. [2020-12-01 15:49:45,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:49:45,040 INFO L692 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2020-12-01 15:49:45,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 291 transitions. [2020-12-01 15:49:45,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-12-01 15:49:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-12-01 15:49:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2020-12-01 15:49:45,063 INFO L715 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2020-12-01 15:49:45,063 INFO L595 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2020-12-01 15:49:45,063 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:49:45,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 291 transitions. [2020-12-01 15:49:45,068 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2020-12-01 15:49:45,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:49:45,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:49:45,071 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:49:45,073 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:49:45,073 INFO L794 eck$LassoCheckResult]: Stem: 1033#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);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~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);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);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 933#L-1 havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 934#L76 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; 931#L84 main_#t~ret82 := valid_product_#res;main_~tmp~11 := main_#t~ret82;havoc main_#t~ret82; 932#L986 assume 0 != main_~tmp~11; 1010#L963 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 987#L520-1 [2020-12-01 15:49:45,073 INFO L796 eck$LassoCheckResult]: Loop: 987#L520-1 assume !false; 912#L354 assume test_~splverifierCounter~0 < 4; 913#L355 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 1025#L363 assume !(0 != test_~tmp~6); 1014#L363-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 968#L373 assume !(0 != test_~tmp___0~2); 935#L373-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 936#L383 assume 0 != test_~tmp___2~0; 982#L389-2 assume !(0 != ~pumpRunning~0); 983#L107 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 992#L191 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 993#L165-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 927#L139-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 928#L492-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 899#L497-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 900#L310-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1065#L310-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1046#L316-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 1038#L143-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 923#L114 havoc __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 965#L484 __utac_acc__Specification4_spec__1_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret45;havoc __utac_acc__Specification4_spec__1_#t~ret45; 1034#L520 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 987#L520-1 [2020-12-01 15:49:45,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:49:45,074 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-12-01 15:49:45,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:49:45,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238729268] [2020-12-01 15:49:45,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:49:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:45,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:45,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:45,210 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:49:45,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:49:45,213 INFO L82 PathProgramCache]: Analyzing trace with hash 697809967, now seen corresponding path program 1 times [2020-12-01 15:49:45,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:49:45,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925248046] [2020-12-01 15:49:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:49:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:45,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:45,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:45,237 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:49:45,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:49:45,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1951115093, now seen corresponding path program 1 times [2020-12-01 15:49:45,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:49:45,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305941642] [2020-12-01 15:49:45,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:49:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:45,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:49:45,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:49:45,377 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:49:45,510 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-12-01 15:51:36,236 WARN L197 SmtUtils]: Spent 1.84 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-12-01 15:52:55,715 WARN L197 SmtUtils]: Spent 1.32 m on a formula simplification that was a NOOP. DAG size: 433 [2020-12-01 15:52:56,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:52:56 BoogieIcfgContainer [2020-12-01 15:52:56,317 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:52:56,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:52:56,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:52:56,319 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:52:56,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:49:43" (3/4) ... [2020-12-01 15:52:56,324 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:52:56,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0923cc81-d865-40a8-a510-faece86b885f/bin/uautomizer/witness.graphml [2020-12-01 15:52:56,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:52:56,404 INFO L168 Benchmark]: Toolchain (without parser) took 195542.39 ms. Allocated memory was 109.1 MB in the beginning and 167.8 MB in the end (delta: 58.7 MB). Free memory was 67.7 MB in the beginning and 75.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 52.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:56,405 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 109.1 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:52:56,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.75 ms. Allocated memory is still 109.1 MB. Free memory was 67.5 MB in the beginning and 73.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:56,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 156.25 ms. Allocated memory is still 109.1 MB. Free memory was 73.9 MB in the beginning and 68.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:56,408 INFO L168 Benchmark]: Boogie Preprocessor took 97.58 ms. Allocated memory is still 109.1 MB. Free memory was 68.0 MB in the beginning and 64.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:56,409 INFO L168 Benchmark]: RCFGBuilder took 1466.17 ms. Allocated memory is still 109.1 MB. Free memory was 64.3 MB in the beginning and 49.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:56,410 INFO L168 Benchmark]: BuchiAutomizer took 193098.57 ms. Allocated memory was 109.1 MB in the beginning and 167.8 MB in the end (delta: 58.7 MB). Free memory was 49.1 MB in the beginning and 77.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:52:56,411 INFO L168 Benchmark]: Witness Printer took 84.37 ms. Allocated memory is still 167.8 MB. Free memory was 77.5 MB in the beginning and 75.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:52:56,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 109.1 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 612.75 ms. Allocated memory is still 109.1 MB. Free memory was 67.5 MB in the beginning and 73.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 156.25 ms. Allocated memory is still 109.1 MB. Free memory was 73.9 MB in the beginning and 68.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.58 ms. Allocated memory is still 109.1 MB. Free memory was 68.0 MB in the beginning and 64.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1466.17 ms. Allocated memory is still 109.1 MB. Free memory was 64.3 MB in the beginning and 49.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 193098.57 ms. Allocated memory was 109.1 MB in the beginning and 167.8 MB in the end (delta: 58.7 MB). Free memory was 49.1 MB in the beginning and 77.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. * Witness Printer took 84.37 ms. Allocated memory is still 167.8 MB. Free memory was 77.5 MB in the beginning and 75.4 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 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 192.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 192.2s. Construction of modules took 0.2s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 539 SDtfs, 1127 SDslu, 77 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 353]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14635} State at position 1 is {NULL=0, NULL=14635, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43c6401a=0, NULL=0, NULL=14640, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@318858a8=0, retValue_acc=0, NULL=0, tmp=0, NULL=14647, NULL=0, tmp___1=0, NULL=0, NULL=14650, NULL=14645, cleanupTimeShifts=4, NULL=14657, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ba53c89=0, NULL=14636, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cb362b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22acc181=61, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d5cb429=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40000de4=0, NULL=14642, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=14648, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49adbe2d=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16526f9e=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=14654, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36d32c1d=0, tmp=1, retValue_acc=1, NULL=0, tmp___0=0, NULL=14644, NULL=14637, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=14651, NULL=0, NULL=0, NULL=14663, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7280209c=0, tmp___0=0, NULL=0, NULL=0, NULL=14652, NULL=0, NULL=0, tmp=0, NULL=14661, tmp___0=0, NULL=0, systemActive=1, NULL=14660, \result=1, NULL=0, \result=0, NULL=14638, retValue_acc=0, NULL=14646, \result=0, NULL=14653, NULL=0, NULL=0, NULL=14655, NULL=14641, NULL=14656, NULL=14662, retValue_acc=1, tmp___2=61, splverifierCounter=0, NULL=0, NULL=14649, NULL=14639, NULL=0, NULL=0, NULL=14659, NULL=0, NULL=14643, NULL=14658} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L99] int pumpRunning = 0; [L100] int systemActive = 1; [L409] int waterLevel = 1; [L410] int methaneLevelCritical = 0; [L707] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L904] int cleanupTimeShifts = 4; [L977] int retValue_acc ; [L978] int tmp ; [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L984] tmp = valid_product() [L986] COND TRUE \read(tmp) [L344] int splverifierCounter ; [L345] int tmp ; [L346] int tmp___0 ; [L347] int tmp___1 ; [L348] int tmp___2 ; [L351] splverifierCounter = 0 Loop: [L353] COND TRUE 1 [L355] COND TRUE splverifierCounter < 4 [L361] tmp = __VERIFIER_nondet_int() [L363] COND FALSE !(\read(tmp)) [L371] tmp___0 = __VERIFIER_nondet_int() [L373] COND FALSE !(\read(tmp___0)) [L381] tmp___2 = __VERIFIER_nondet_int() [L383] COND TRUE \read(tmp___2) [L107] COND FALSE !(\read(pumpRunning)) [L114] COND TRUE \read(systemActive) [L188] int tmp ; [L191] COND FALSE !(\read(pumpRunning)) [L162] int tmp ; [L165] COND FALSE !(\read(pumpRunning)) [L136] int tmp ; [L139] COND TRUE ! pumpRunning [L302] int retValue_acc ; [L303] int tmp ; [L304] int tmp___0 ; [L489] int retValue_acc ; [L492] COND TRUE waterLevel < 2 [L493] retValue_acc = 1 [L494] return (retValue_acc); [L308] tmp = isHighWaterSensorDry() [L310] COND TRUE \read(tmp) [L311] tmp___0 = 0 [L315] retValue_acc = tmp___0 [L316] return (retValue_acc); [L141] tmp = isHighWaterLevel() [L143] COND FALSE !(\read(tmp)) [L513] int tmp ; [L514] int tmp___0 ; [L480] int retValue_acc ; [L483] retValue_acc = waterLevel [L484] return (retValue_acc); [L518] tmp = getWaterLevel() [L520] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...