./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.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_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/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 fa8aab7b4d1dbf3ce64147abb8b13f1152d3986f ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:39:12,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:39:12,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:39:12,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:39:12,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:39:12,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:39:12,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:39:12,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:39:12,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:39:12,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:39:12,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:39:12,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:39:12,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:39:12,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:39:12,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:39:12,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:39:12,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:39:12,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:39:12,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:39:12,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:39:12,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:39:12,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:39:12,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:39:12,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:39:12,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:39:12,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:39:12,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:39:12,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:39:12,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:39:12,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:39:12,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:39:12,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:39:12,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:39:12,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:39:12,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:39:12,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:39:12,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:39:12,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:39:12,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:39:12,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:39:12,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:39:12,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:39:12,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:39:12,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:39:12,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:39:12,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:39:12,729 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:39:12,729 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:39:12,730 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:39:12,730 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:39:12,730 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:39:12,730 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:39:12,732 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:39:12,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:39:12,733 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:39:12,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:39:12,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:39:12,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:39:12,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:39:12,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:39:12,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:39:12,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:39:12,735 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:39:12,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:39:12,736 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:39:12,736 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:39:12,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:39:12,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:39:12,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:39:12,737 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:39:12,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:39:12,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:39:12,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:39:12,740 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:39:12,743 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:39:12,744 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_db148d33-9077-4b93-af54-d8da012a3571/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa8aab7b4d1dbf3ce64147abb8b13f1152d3986f [2020-12-01 15:39:13,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:39:13,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:39:13,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:39:13,234 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:39:13,235 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:39:13,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2020-12-01 15:39:13,350 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/data/45c57f8cb/be66284dacfd4da0ad9ad56881acf31c/FLAG816615e1a [2020-12-01 15:39:14,150 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:39:14,151 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2020-12-01 15:39:14,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/data/45c57f8cb/be66284dacfd4da0ad9ad56881acf31c/FLAG816615e1a [2020-12-01 15:39:14,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/data/45c57f8cb/be66284dacfd4da0ad9ad56881acf31c [2020-12-01 15:39:14,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:39:14,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:39:14,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:14,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:39:14,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:39:14,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:14,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784c28f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14, skipping insertion in model container [2020-12-01 15:39:14,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:14,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:39:14,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:39:14,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:14,799 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:39:14,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:14,939 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:39:14,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14 WrapperNode [2020-12-01 15:39:14,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:14,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:14,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:39:14,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:39:14,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:14,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:15,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:15,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:39:15,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:39:15,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:39:15,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:15,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:15,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:15,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:15,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:15,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:15,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... [2020-12-01 15:39:15,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:39:15,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:39:15,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:39:15,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:39:15,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/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 15:39:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:39:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:39:15,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:39:15,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:39:16,634 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:39:16,635 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-12-01 15:39:16,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:16 BoogieIcfgContainer [2020-12-01 15:39:16,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:39:16,641 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:39:16,641 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:39:16,645 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:39:16,647 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:16,647 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:39:14" (1/3) ... [2020-12-01 15:39:16,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ed1e771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:39:16, skipping insertion in model container [2020-12-01 15:39:16,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:16,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:14" (2/3) ... [2020-12-01 15:39:16,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ed1e771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:39:16, skipping insertion in model container [2020-12-01 15:39:16,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:16,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:16" (3/3) ... [2020-12-01 15:39:16,654 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-12-01 15:39:16,714 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:39:16,715 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:39:16,715 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:39:16,715 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:39:16,716 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:39:16,716 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:39:16,716 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:39:16,716 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:39:16,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states. [2020-12-01 15:39:16,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-12-01 15:39:16,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:16,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:16,779 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:16,780 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:16,780 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:39:16,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states. [2020-12-01 15:39:16,790 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-12-01 15:39:16,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:16,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:16,792 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:16,792 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:16,799 INFO L794 eck$LassoCheckResult]: Stem: 71#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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 6#L-1true havoc main_#res;havoc main_#t~ret34, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 15#L117true 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; 12#L125true main_#t~ret34 := valid_product_#res;main_~tmp~5 := main_#t~ret34;havoc main_#t~ret34; 31#L477true assume 0 != main_~tmp~5; 8#L453true ~methAndRunningLastTime~0 := 0; 10#L59true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L70-1true [2020-12-01 15:39:16,800 INFO L796 eck$LassoCheckResult]: Loop: 9#L70-1true assume !false; 94#L338true assume test_~splverifierCounter~0 < 4; 40#L339true test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 55#L347true assume !(0 != test_~tmp~4); 58#L347-1true test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 115#L357true assume !(0 != test_~tmp___0~2); 98#L357-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 36#L367true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 39#L375-2true assume !(0 != ~pumpRunning~0); 102#L145true assume !(0 != ~systemActive~0); 46#L152true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 27#L535-1true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 11#L70true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 9#L70-1true [2020-12-01 15:39:16,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:16,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-12-01 15:39:16,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:16,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981662551] [2020-12-01 15:39:16,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:17,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:17,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:17,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:17,443 INFO L82 PathProgramCache]: Analyzing trace with hash 5246669, now seen corresponding path program 1 times [2020-12-01 15:39:17,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:17,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513666957] [2020-12-01 15:39:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:17,523 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 15:39:17,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513666957] [2020-12-01 15:39:17,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:17,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:39:17,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637717856] [2020-12-01 15:39:17,534 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:39:17,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:17,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:17,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:17,558 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 3 states. [2020-12-01 15:39:17,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:17,654 INFO L93 Difference]: Finished difference Result 112 states and 162 transitions. [2020-12-01 15:39:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:39:17,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 162 transitions. [2020-12-01 15:39:17,669 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-12-01 15:39:17,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 105 states and 154 transitions. [2020-12-01 15:39:17,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2020-12-01 15:39:17,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2020-12-01 15:39:17,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 154 transitions. [2020-12-01 15:39:17,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:39:17,695 INFO L692 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2020-12-01 15:39:17,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 154 transitions. [2020-12-01 15:39:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-12-01 15:39:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-01 15:39:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 154 transitions. [2020-12-01 15:39:17,740 INFO L715 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2020-12-01 15:39:17,740 INFO L595 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2020-12-01 15:39:17,740 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:39:17,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 154 transitions. [2020-12-01 15:39:17,744 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-12-01 15:39:17,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:17,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:17,746 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:17,746 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:17,747 INFO L794 eck$LassoCheckResult]: Stem: 319#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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 242#L-1 havoc main_#res;havoc main_#t~ret34, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 243#L117 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; 250#L125 main_#t~ret34 := valid_product_#res;main_~tmp~5 := main_#t~ret34;havoc main_#t~ret34; 251#L477 assume 0 != main_~tmp~5; 244#L453 ~methAndRunningLastTime~0 := 0; 245#L59 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 246#L70-1 [2020-12-01 15:39:17,747 INFO L796 eck$LassoCheckResult]: Loop: 246#L70-1 assume !false; 247#L338 assume test_~splverifierCounter~0 < 4; 294#L339 test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 295#L347 assume !(0 != test_~tmp~4); 280#L347-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 306#L357 assume !(0 != test_~tmp___0~2); 241#L357-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 288#L367 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 290#L375-2 assume !(0 != ~pumpRunning~0); 292#L145 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 340#L203 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 267#L177-1 assume !(0 == ~pumpRunning~0); 268#L152 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 275#L535-1 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 248#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 246#L70-1 [2020-12-01 15:39:17,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:17,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-12-01 15:39:17,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:17,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300616095] [2020-12-01 15:39:17,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:17,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:17,915 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:17,949 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:17,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:17,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1693207932, now seen corresponding path program 1 times [2020-12-01 15:39:17,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:17,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739068271] [2020-12-01 15:39:17,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:17,985 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 15:39:17,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739068271] [2020-12-01 15:39:17,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:17,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:39:17,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056132014] [2020-12-01 15:39:17,987 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:39:17,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:17,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:17,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:17,988 INFO L87 Difference]: Start difference. First operand 105 states and 154 transitions. cyclomatic complexity: 51 Second operand 3 states. [2020-12-01 15:39:18,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:18,146 INFO L93 Difference]: Finished difference Result 149 states and 208 transitions. [2020-12-01 15:39:18,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:39:18,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 208 transitions. [2020-12-01 15:39:18,153 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2020-12-01 15:39:18,155 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 208 transitions. [2020-12-01 15:39:18,155 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2020-12-01 15:39:18,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2020-12-01 15:39:18,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 208 transitions. [2020-12-01 15:39:18,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:39:18,158 INFO L692 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2020-12-01 15:39:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 208 transitions. [2020-12-01 15:39:18,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-12-01 15:39:18,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-01 15:39:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 208 transitions. [2020-12-01 15:39:18,190 INFO L715 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2020-12-01 15:39:18,190 INFO L595 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2020-12-01 15:39:18,190 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:39:18,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 208 transitions. [2020-12-01 15:39:18,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2020-12-01 15:39:18,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:18,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:18,198 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:18,199 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] [2020-12-01 15:39:18,199 INFO L794 eck$LassoCheckResult]: Stem: 585#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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 501#L-1 havoc main_#res;havoc main_#t~ret34, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 502#L117 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; 509#L125 main_#t~ret34 := valid_product_#res;main_~tmp~5 := main_#t~ret34;havoc main_#t~ret34; 510#L477 assume 0 != main_~tmp~5; 503#L453 ~methAndRunningLastTime~0 := 0; 504#L59 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 505#L70-1 [2020-12-01 15:39:18,200 INFO L796 eck$LassoCheckResult]: Loop: 505#L70-1 assume !false; 506#L338 assume test_~splverifierCounter~0 < 4; 554#L339 test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 555#L347 assume !(0 != test_~tmp~4); 540#L347-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 568#L357 assume !(0 != test_~tmp___0~2); 500#L357-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 548#L367 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 550#L375-2 assume !(0 != ~pumpRunning~0); 553#L145 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 609#L203 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 527#L177-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 528#L575-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 584#L580-1 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 598#L305-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 599#L305-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 576#L311-1 processEnvironment__wrappee__highWaterSensor_#t~ret10 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret10;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10; 577#L181-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 552#L152 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 535#L535-1 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 507#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 505#L70-1 [2020-12-01 15:39:18,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:18,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-12-01 15:39:18,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:18,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590376045] [2020-12-01 15:39:18,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:18,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:18,357 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:18,376 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:18,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:18,377 INFO L82 PathProgramCache]: Analyzing trace with hash 446590704, now seen corresponding path program 1 times [2020-12-01 15:39:18,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:18,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713382039] [2020-12-01 15:39:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:18,385 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:18,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:18,398 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:18,399 INFO L82 PathProgramCache]: Analyzing trace with hash -2075234966, now seen corresponding path program 1 times [2020-12-01 15:39:18,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:18,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775347079] [2020-12-01 15:39:18,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:18,465 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:18,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:18,587 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:18,756 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-01 15:40:59,739 WARN L197 SmtUtils]: Spent 1.68 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-12-01 15:42:08,709 WARN L197 SmtUtils]: Spent 1.15 m on a formula simplification that was a NOOP. DAG size: 435 [2020-12-01 15:42:09,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:42:09 BoogieIcfgContainer [2020-12-01 15:42:09,094 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:42:09,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:42:09,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:42:09,102 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:42:09,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:16" (3/4) ... [2020-12-01 15:42:09,106 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:42:09,196 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db148d33-9077-4b93-af54-d8da012a3571/bin/uautomizer/witness.graphml [2020-12-01 15:42:09,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:42:09,201 INFO L168 Benchmark]: Toolchain (without parser) took 174814.58 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 67.5 MB in the beginning and 37.0 MB in the end (delta: 30.5 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:09,204 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 74.1 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:42:09,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.28 ms. Allocated memory is still 100.7 MB. Free memory was 67.3 MB in the beginning and 67.6 MB in the end (delta: -241.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:09,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.78 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 64.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:09,208 INFO L168 Benchmark]: Boogie Preprocessor took 55.24 ms. Allocated memory is still 100.7 MB. Free memory was 63.8 MB in the beginning and 61.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:09,209 INFO L168 Benchmark]: RCFGBuilder took 1546.76 ms. Allocated memory is still 100.7 MB. Free memory was 61.3 MB in the beginning and 45.8 MB in the end (delta: 15.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:09,209 INFO L168 Benchmark]: BuchiAutomizer took 172453.63 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 45.3 MB in the beginning and 40.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:09,210 INFO L168 Benchmark]: Witness Printer took 105.28 ms. Allocated memory is still 136.3 MB. Free memory was 40.2 MB in the beginning and 37.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:09,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 74.1 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 552.28 ms. Allocated memory is still 100.7 MB. Free memory was 67.3 MB in the beginning and 67.6 MB in the end (delta: -241.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.78 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 64.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.24 ms. Allocated memory is still 100.7 MB. Free memory was 63.8 MB in the beginning and 61.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1546.76 ms. Allocated memory is still 100.7 MB. Free memory was 61.3 MB in the beginning and 45.8 MB in the end (delta: 15.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 172453.63 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 45.3 MB in the beginning and 40.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. * Witness Printer took 105.28 ms. Allocated memory is still 136.3 MB. Free memory was 40.2 MB in the beginning and 37.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 149 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 172.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 171.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. 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 149 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 311 SDtfs, 269 SDslu, 63 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 337]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12651} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=12651, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@105790eb=0, NULL=0, NULL=45215, NULL=45210, methaneLevelCritical=0, retValue_acc=0, tmp=0, NULL=0, NULL=45211, NULL=0, tmp___1=0, NULL=0, NULL=45200, NULL=45209, cleanupTimeShifts=4, NULL=33160, NULL=45207, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d3ae0e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66190061=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48b13c8f=0, waterLevel=1, NULL=0, NULL=33161, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=45218, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7db64a91=72, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4361cc5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@747f334e=0, NULL=0, tmp=1, NULL=0, NULL=45217, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=45204, methAndRunningLastTime=0, NULL=45219, NULL=45212, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fa6c33f=0, tmp=0, head=0, NULL=0, NULL=0, NULL=45198, NULL=0, NULL=0, retValue_acc=0, NULL=45201, NULL=45197, NULL=45216, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dd79389=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=45206, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22ea8920=0, tmp=0, NULL=0, systemActive=1, NULL=0, retValue_acc=0, \result=0, NULL=45202, NULL=12652, \result=0, NULL=45214, NULL=0, NULL=0, tmp___0=0, NULL=45220, NULL=45208, NULL=45205, retValue_acc=1, tmp___2=72, splverifierCounter=0, NULL=0, \result=0, NULL=45203, NULL=0, NULL=0, NULL=45199, tmp=0, NULL=0, NULL=12653, NULL=45213} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L138] int pumpRunning = 0; [L139] int systemActive = 1; [L394] int cleanupTimeShifts = 4; [L492] int waterLevel = 1; [L493] int methaneLevelCritical = 0; [L755] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L468] int retValue_acc ; [L469] int tmp ; [L121] int retValue_acc ; [L124] retValue_acc = 1 [L125] return (retValue_acc); [L475] tmp = valid_product() [L477] COND TRUE \read(tmp) [L58] methAndRunningLastTime = 0 [L328] int splverifierCounter ; [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L332] int tmp___2 ; [L335] splverifierCounter = 0 Loop: [L337] COND TRUE 1 [L339] COND TRUE splverifierCounter < 4 [L345] tmp = __VERIFIER_nondet_int() [L347] COND FALSE !(\read(tmp)) [L355] tmp___0 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___0)) [L365] tmp___2 = __VERIFIER_nondet_int() [L367] COND TRUE \read(tmp___2) [L319] systemActive = 1 [L145] COND FALSE !(\read(pumpRunning)) [L152] COND TRUE \read(systemActive) [L200] int tmp ; [L203] COND FALSE !(\read(pumpRunning)) [L174] int tmp ; [L177] COND TRUE ! pumpRunning [L297] int retValue_acc ; [L298] int tmp ; [L299] int tmp___0 ; [L572] int retValue_acc ; [L575] COND TRUE waterLevel < 2 [L576] retValue_acc = 1 [L577] return (retValue_acc); [L303] tmp = isHighWaterSensorDry() [L305] COND TRUE \read(tmp) [L306] tmp___0 = 0 [L310] retValue_acc = tmp___0 [L311] return (retValue_acc); [L179] tmp = isHighWaterLevel() [L181] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L531] int retValue_acc ; [L534] retValue_acc = methaneLevelCritical [L535] return (retValue_acc); [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...