./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.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_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/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 944b52f1c750b2b149a29532cc6e317483d681a8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:58:17,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:58:17,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:58:17,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:58:17,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:58:17,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:58:17,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:58:17,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:58:17,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:58:17,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:58:17,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:58:17,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:58:17,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:58:17,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:58:17,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:58:17,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:58:17,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:58:17,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:58:17,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:58:17,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:58:17,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:58:17,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:58:17,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:58:17,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:58:17,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:58:17,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:58:17,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:58:17,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:58:17,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:58:17,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:58:17,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:58:17,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:58:17,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:58:17,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:58:17,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:58:17,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:58:17,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:58:17,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:58:17,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:58:17,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:58:17,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:58:17,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 21:58:17,583 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:58:17,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:58:17,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:58:17,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:58:17,586 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:58:17,586 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:58:17,587 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:58:17,587 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:58:17,587 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:58:17,588 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:58:17,589 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:58:17,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:58:17,590 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:58:17,590 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:58:17,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:58:17,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:58:17,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:58:17,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:58:17,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:58:17,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:58:17,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:58:17,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:58:17,593 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:58:17,593 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:58:17,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:58:17,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:58:17,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:58:17,594 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:58:17,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:58:17,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:58:17,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:58:17,598 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:58:17,599 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:58:17,600 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_a18199bc-e7a8-4d8b-b2bc-f61324824831/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 944b52f1c750b2b149a29532cc6e317483d681a8 [2020-11-29 21:58:17,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:58:17,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:58:17,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:58:17,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:58:17,952 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:58:17,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2020-11-29 21:58:18,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/data/7dfd18e49/e37b3170ac164d0abbee0d3a732f2375/FLAG9394f0e51 [2020-11-29 21:58:18,747 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:58:18,748 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2020-11-29 21:58:18,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/data/7dfd18e49/e37b3170ac164d0abbee0d3a732f2375/FLAG9394f0e51 [2020-11-29 21:58:19,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/data/7dfd18e49/e37b3170ac164d0abbee0d3a732f2375 [2020-11-29 21:58:19,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:58:19,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:58:19,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:58:19,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:58:19,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:58:19,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:19,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84862e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19, skipping insertion in model container [2020-11-29 21:58:19,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:19,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:58:19,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:58:19,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:58:19,583 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:58:19,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:58:19,775 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:58:19,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19 WrapperNode [2020-11-29 21:58:19,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:58:19,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:58:19,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:58:19,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:58:19,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:19,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:19,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:58:19,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:58:19,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:58:19,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:58:19,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:19,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:19,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:19,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:19,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:20,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:20,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... [2020-11-29 21:58:20,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:58:20,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:58:20,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:58:20,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:58:20,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:58:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:58:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:58:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:58:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:58:21,420 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:58:21,425 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-29 21:58:21,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:58:21 BoogieIcfgContainer [2020-11-29 21:58:21,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:58:21,430 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:58:21,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:58:21,434 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:58:21,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:58:21,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:58:19" (1/3) ... [2020-11-29 21:58:21,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5be3a855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:58:21, skipping insertion in model container [2020-11-29 21:58:21,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:58:21,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:19" (2/3) ... [2020-11-29 21:58:21,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5be3a855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:58:21, skipping insertion in model container [2020-11-29 21:58:21,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:58:21,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:58:21" (3/3) ... [2020-11-29 21:58:21,443 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-11-29 21:58:21,501 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:58:21,502 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:58:21,502 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:58:21,502 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:58:21,502 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:58:21,503 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:58:21,503 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:58:21,503 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:58:21,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-29 21:58:21,554 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 21:58:21,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:58:21,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:58:21,565 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:58:21,565 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:21,565 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:58:21,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-29 21:58:21,574 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 21:58:21,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:58:21,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:58:21,576 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:58:21,577 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:21,584 INFO L794 eck$LassoCheckResult]: Stem: 99#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 41#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 57#L75true main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 79#L906true assume 0 != main_~tmp~7; 104#L883true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 80#L928-1true [2020-11-29 21:58:21,597 INFO L796 eck$LassoCheckResult]: Loop: 80#L928-1true assume !false; 102#L462true assume test_~splverifierCounter~0 < 4; 66#L463true test_~tmp~3 := test_#t~nondet43;havoc test_#t~nondet43; 72#L471true assume !(0 != test_~tmp~3); 74#L471-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 110#L481true assume !(0 != test_~tmp___0~0); 111#L481-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 33#L491true assume 0 != test_~tmp___2~0; 16#L497-1true assume !(0 != ~pumpRunning~0); 97#L534true assume !(0 != ~systemActive~0); 11#L541true havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 23#L805true __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 77#L928true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 80#L928-1true [2020-11-29 21:58:21,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:21,611 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 21:58:21,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:21,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160780344] [2020-11-29 21:58:21,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:21,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:22,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:22,134 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:58:22,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:22,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1671401907, now seen corresponding path program 1 times [2020-11-29 21:58:22,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:22,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749421992] [2020-11-29 21:58:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:22,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:22,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:22,159 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:58:22,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:22,161 INFO L82 PathProgramCache]: Analyzing trace with hash 42877031, now seen corresponding path program 1 times [2020-11-29 21:58:22,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:22,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628600152] [2020-11-29 21:58:22,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:58:22,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628600152] [2020-11-29 21:58:22,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:22,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:58:22,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647732519] [2020-11-29 21:58:22,554 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-11-29 21:58:22,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:22,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:58:22,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:58:22,609 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 6 states. [2020-11-29 21:58:23,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:23,011 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2020-11-29 21:58:23,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:58:23,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 378 transitions. [2020-11-29 21:58:23,036 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 169 [2020-11-29 21:58:23,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 243 states and 357 transitions. [2020-11-29 21:58:23,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2020-11-29 21:58:23,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2020-11-29 21:58:23,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 357 transitions. [2020-11-29 21:58:23,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:58:23,072 INFO L691 BuchiCegarLoop]: Abstraction has 243 states and 357 transitions. [2020-11-29 21:58:23,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 357 transitions. [2020-11-29 21:58:23,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 144. [2020-11-29 21:58:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-29 21:58:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2020-11-29 21:58:23,117 INFO L714 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2020-11-29 21:58:23,117 INFO L594 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2020-11-29 21:58:23,117 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:58:23,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2020-11-29 21:58:23,122 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2020-11-29 21:58:23,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:58:23,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:58:23,123 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:58:23,124 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:23,124 INFO L794 eck$LassoCheckResult]: Stem: 495#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 406#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 407#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 458#L75 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 471#L906 assume 0 != main_~tmp~7; 484#L883 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 396#L928-1 [2020-11-29 21:58:23,124 INFO L796 eck$LassoCheckResult]: Loop: 396#L928-1 assume !false; 485#L462 assume test_~splverifierCounter~0 < 4; 474#L463 test_~tmp~3 := test_#t~nondet43;havoc test_#t~nondet43; 475#L471 assume !(0 != test_~tmp~3); 482#L471-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 483#L481 assume !(0 != test_~tmp___0~0); 480#L481-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 446#L491 assume 0 != test_~tmp___2~0; 419#L497-1 assume !(0 != ~pumpRunning~0); 422#L534 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 489#L592 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 404#L566-1 assume !(0 == ~pumpRunning~0); 400#L541 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 412#L805 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 431#L928 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 396#L928-1 [2020-11-29 21:58:23,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:23,127 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 21:58:23,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:23,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142013327] [2020-11-29 21:58:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:23,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:23,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:23,301 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:58:23,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:23,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1955219780, now seen corresponding path program 1 times [2020-11-29 21:58:23,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:23,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019065448] [2020-11-29 21:58:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:58:23,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019065448] [2020-11-29 21:58:23,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:23,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:58:23,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937546646] [2020-11-29 21:58:23,334 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:58:23,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:23,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:23,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:58:23,336 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand 3 states. [2020-11-29 21:58:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:23,515 INFO L93 Difference]: Finished difference Result 183 states and 250 transitions. [2020-11-29 21:58:23,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:23,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 250 transitions. [2020-11-29 21:58:23,520 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2020-11-29 21:58:23,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 250 transitions. [2020-11-29 21:58:23,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2020-11-29 21:58:23,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2020-11-29 21:58:23,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 250 transitions. [2020-11-29 21:58:23,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:58:23,528 INFO L691 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2020-11-29 21:58:23,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 250 transitions. [2020-11-29 21:58:23,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2020-11-29 21:58:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-29 21:58:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2020-11-29 21:58:23,551 INFO L714 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2020-11-29 21:58:23,551 INFO L594 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2020-11-29 21:58:23,551 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 21:58:23,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 250 transitions. [2020-11-29 21:58:23,562 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2020-11-29 21:58:23,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:58:23,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:58:23,565 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:58:23,565 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:23,566 INFO L794 eck$LassoCheckResult]: Stem: 845#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 739#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 740#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 801#L75 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 815#L906 assume 0 != main_~tmp~7; 833#L883 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 729#L928-1 [2020-11-29 21:58:23,567 INFO L796 eck$LassoCheckResult]: Loop: 729#L928-1 assume !false; 834#L462 assume test_~splverifierCounter~0 < 4; 821#L463 test_~tmp~3 := test_#t~nondet43;havoc test_#t~nondet43; 822#L471 assume !(0 != test_~tmp~3); 899#L471-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 898#L481 assume !(0 != test_~tmp___0~0); 896#L481-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 785#L491 assume 0 != test_~tmp___2~0; 786#L497-1 assume !(0 != ~pumpRunning~0); 843#L534 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 840#L592 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 737#L566-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 738#L813-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 782#L818-1 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 813#L694-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 814#L694-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 799#L700-1 processEnvironment__wrappee__highWaterSensor_#t~ret47 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret47;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47; 800#L570-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 742#L541 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 746#L805 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 769#L928 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 729#L928-1 [2020-11-29 21:58:23,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:23,568 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 21:58:23,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:23,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048154142] [2020-11-29 21:58:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:23,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:23,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:23,748 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:58:23,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:23,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1592970096, now seen corresponding path program 1 times [2020-11-29 21:58:23,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:23,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130250527] [2020-11-29 21:58:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:23,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:23,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:23,785 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:58:23,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:23,786 INFO L82 PathProgramCache]: Analyzing trace with hash 2049041290, now seen corresponding path program 1 times [2020-11-29 21:58:23,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:23,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886084410] [2020-11-29 21:58:23,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:23,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:58:23,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:58:23,945 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:58:24,112 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 21:59:56,626 WARN L193 SmtUtils]: Spent 1.54 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:00:57,241 WARN L193 SmtUtils]: Spent 1.01 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:00:57,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:00:57 BoogieIcfgContainer [2020-11-29 22:00:57,627 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:00:57,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:00:57,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:00:57,628 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:00:57,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:58:21" (3/4) ... [2020-11-29 22:00:57,632 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:00:57,733 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a18199bc-e7a8-4d8b-b2bc-f61324824831/bin/uautomizer/witness.graphml [2020-11-29 22:00:57,733 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:00:57,737 INFO L168 Benchmark]: Toolchain (without parser) took 158695.69 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 55.6 MB in the beginning and 99.6 MB in the end (delta: -44.0 MB). Peak memory consumption was 68.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:00:57,738 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 45.2 MB in the beginning and 45.2 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:00:57,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.10 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 55.4 MB in the beginning and 74.3 MB in the end (delta: -19.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:00:57,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.53 ms. Allocated memory is still 107.0 MB. Free memory was 74.3 MB in the beginning and 70.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:00:57,743 INFO L168 Benchmark]: Boogie Preprocessor took 101.89 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 68.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:00:57,743 INFO L168 Benchmark]: RCFGBuilder took 1406.96 ms. Allocated memory is still 107.0 MB. Free memory was 68.1 MB in the beginning and 56.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:00:57,744 INFO L168 Benchmark]: BuchiAutomizer took 156196.64 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 56.1 MB in the beginning and 31.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:00:57,745 INFO L168 Benchmark]: Witness Printer took 105.70 ms. Allocated memory is still 130.0 MB. Free memory was 31.7 MB in the beginning and 99.6 MB in the end (delta: -67.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:00:57,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 45.2 MB in the beginning and 45.2 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 736.10 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 55.4 MB in the beginning and 74.3 MB in the end (delta: -19.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.53 ms. Allocated memory is still 107.0 MB. Free memory was 74.3 MB in the beginning and 70.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.89 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 68.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1406.96 ms. Allocated memory is still 107.0 MB. Free memory was 68.1 MB in the beginning and 56.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 156196.64 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 56.1 MB in the beginning and 31.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. * Witness Printer took 105.70 ms. Allocated memory is still 130.0 MB. Free memory was 31.7 MB in the beginning and 99.6 MB in the end (delta: -67.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 156.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 155.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 303 SDtfs, 706 SDslu, 752 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 461]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31310} State at position 1 is {NULL=0, NULL=31324, NULL=0, NULL=31310, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55c09061=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e5c0b93=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@347e06ab=0, methaneLevelCritical=0, tmp=0, NULL=0, NULL=31313, retValue_acc=0, tmp___1=0, NULL=31328, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61f56ef5=0, NULL=31314, NULL=31330, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e060f66=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78afdf39=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=31315, NULL=31333, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=31318, NULL=0, NULL=0, retValue_acc=1, NULL=0, tmp=1, NULL=31323, NULL=31337, tmp=1, NULL=31311, NULL=31336, head=0, NULL=0, NULL=0, tmp=0, NULL=31338, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ba6d829=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d2381ae=0, NULL=0, NULL=31312, NULL=31317, NULL=31331, NULL=31322, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3769df68=0, NULL=0, NULL=0, NULL=31325, tmp=0, NULL=31316, tmp___0=0, NULL=31319, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=31329, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b62298d=0, NULL=0, NULL=31327, NULL=31321, retValue_acc=1, tmp___2=61, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=31320, NULL=31335, NULL=31326, NULL=31334, NULL=31332} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L526] int pumpRunning = 0; [L527] int systemActive = 1; [L730] int waterLevel = 1; [L731] int methaneLevelCritical = 0; [L824] int cleanupTimeShifts = 4; [L897] int retValue_acc ; [L898] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) [L452] int splverifierCounter ; [L453] int tmp ; [L454] int tmp___0 ; [L455] int tmp___1 ; [L456] int tmp___2 ; [L459] splverifierCounter = 0 Loop: [L461] COND TRUE 1 [L463] COND TRUE splverifierCounter < 4 [L469] tmp = __VERIFIER_nondet_int() [L471] COND FALSE !(\read(tmp)) [L479] tmp___0 = __VERIFIER_nondet_int() [L481] COND FALSE !(\read(tmp___0)) [L489] tmp___2 = __VERIFIER_nondet_int() [L491] COND TRUE \read(tmp___2) [L534] COND FALSE !(\read(pumpRunning)) [L541] COND TRUE \read(systemActive) [L589] int tmp ; [L592] COND FALSE !(\read(pumpRunning)) [L563] int tmp ; [L566] COND TRUE ! pumpRunning [L686] int retValue_acc ; [L687] int tmp ; [L688] int tmp___0 ; [L810] int retValue_acc ; [L813] COND TRUE waterLevel < 2 [L814] retValue_acc = 1 [L815] return (retValue_acc); [L692] tmp = isHighWaterSensorDry() [L694] COND TRUE \read(tmp) [L695] tmp___0 = 0 [L699] retValue_acc = tmp___0 [L700] return (retValue_acc); [L568] tmp = isHighWaterLevel() [L570] COND FALSE !(\read(tmp)) [L921] int tmp ; [L922] int tmp___0 ; [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] return (retValue_acc); [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...