./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product28.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_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/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 5673de8ec613c5b3f0b3053cf7689d6b23a316a5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:55:24,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:24,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:24,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:24,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:24,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:24,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:24,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:24,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:24,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:24,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:24,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:24,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:24,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:24,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:24,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:24,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:24,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:24,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:24,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:24,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:24,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:24,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:24,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:24,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:24,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:24,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:24,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:24,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:24,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:24,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:24,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:24,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:24,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:24,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:24,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:24,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:24,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:24,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:24,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:24,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:24,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:55:24,829 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:24,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:24,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:24,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:24,832 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:55:24,832 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:55:24,832 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:55:24,833 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:55:24,833 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:55:24,833 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:55:24,834 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:55:24,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:24,835 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:55:24,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:55:24,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:55:24,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:55:24,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:24,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:55:24,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:55:24,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:55:24,836 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:55:24,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:24,837 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:55:24,837 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:24,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:55:24,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:24,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:55:24,838 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:55:24,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:24,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:55:24,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:55:24,839 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:55:24,840 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:55:24,840 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_c2506760-821a-4c12-9cc7-1addeb64cb81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5673de8ec613c5b3f0b3053cf7689d6b23a316a5 [2020-11-29 23:55:25,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:25,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:25,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:25,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:25,153 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:25,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2020-11-29 23:55:25,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/data/a0f6d107e/be82b238c1bb48b4920f4e8c10e1e421/FLAG1337af3f0 [2020-11-29 23:55:25,795 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:25,797 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/sv-benchmarks/c/product-lines/minepump_spec5_product28.cil.c [2020-11-29 23:55:25,816 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/data/a0f6d107e/be82b238c1bb48b4920f4e8c10e1e421/FLAG1337af3f0 [2020-11-29 23:55:26,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/data/a0f6d107e/be82b238c1bb48b4920f4e8c10e1e421 [2020-11-29 23:55:26,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:26,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:26,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:26,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:26,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:26,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7943a16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26, skipping insertion in model container [2020-11-29 23:55:26,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:26,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:26,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:26,610 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:26,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:26,775 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:26,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26 WrapperNode [2020-11-29 23:55:26,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:26,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:26,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:26,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:26,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:26,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:26,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:26,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:26,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:26,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:26,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:26,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:26,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/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 23:55:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:55:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:55:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:27,946 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:27,946 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-29 23:55:27,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:27 BoogieIcfgContainer [2020-11-29 23:55:27,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:27,952 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:55:27,968 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:55:27,972 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:55:27,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:27,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:55:26" (1/3) ... [2020-11-29 23:55:27,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dac4975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:27, skipping insertion in model container [2020-11-29 23:55:27,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:27,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (2/3) ... [2020-11-29 23:55:27,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dac4975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:27, skipping insertion in model container [2020-11-29 23:55:27,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:27,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:27" (3/3) ... [2020-11-29 23:55:27,981 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2020-11-29 23:55:28,045 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:55:28,045 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:55:28,046 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:55:28,046 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:55:28,046 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:55:28,046 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:55:28,046 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:55:28,046 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:55:28,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-11-29 23:55:28,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-29 23:55:28,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:28,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:28,093 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,093 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,094 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:55:28,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-11-29 23:55:28,100 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-29 23:55:28,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:28,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:28,101 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,101 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,107 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 19#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 22#L680true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 50#L688true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 42#L278true assume 0 != main_~tmp~1; 53#L250true ~switchedOnBeforeTS~0 := 0; 12#L146true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 70#L167-1true [2020-11-29 23:55:28,107 INFO L796 eck$LassoCheckResult]: Loop: 70#L167-1true assume !false; 82#L913true assume test_~splverifierCounter~0 < 4; 25#L914true test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 51#L922true assume !(0 != test_~tmp~8); 35#L922-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 3#L932true assume !(0 != test_~tmp___0~2); 6#L932-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 66#L942true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 16#L950-1true havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 21#L819true __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 71#L156true assume !(0 != ~pumpRunning~0); 11#L716true assume !(0 != ~systemActive~0); 80#L723true havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 9#L124true __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 74#L167true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 70#L167-1true [2020-11-29 23:55:28,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:28,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 23:55:28,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:28,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134365202] [2020-11-29 23:55:28,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:28,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:28,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:28,548 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:28,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:28,554 INFO L82 PathProgramCache]: Analyzing trace with hash 675133688, now seen corresponding path program 1 times [2020-11-29 23:55:28,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:28,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895957904] [2020-11-29 23:55:28,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:28,644 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 23:55:28,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895957904] [2020-11-29 23:55:28,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:28,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:55:28,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380017546] [2020-11-29 23:55:28,651 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:55:28,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:55:28,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:55:28,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:55:28,671 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2020-11-29 23:55:28,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:28,798 INFO L93 Difference]: Finished difference Result 159 states and 221 transitions. [2020-11-29 23:55:28,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:55:28,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 221 transitions. [2020-11-29 23:55:28,810 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 102 [2020-11-29 23:55:28,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 145 states and 206 transitions. [2020-11-29 23:55:28,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2020-11-29 23:55:28,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2020-11-29 23:55:28,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 206 transitions. [2020-11-29 23:55:28,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:55:28,818 INFO L691 BuchiCegarLoop]: Abstraction has 145 states and 206 transitions. [2020-11-29 23:55:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 206 transitions. [2020-11-29 23:55:28,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2020-11-29 23:55:28,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-11-29 23:55:28,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 203 transitions. [2020-11-29 23:55:28,864 INFO L714 BuchiCegarLoop]: Abstraction has 143 states and 203 transitions. [2020-11-29 23:55:28,864 INFO L594 BuchiCegarLoop]: Abstraction has 143 states and 203 transitions. [2020-11-29 23:55:28,864 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:55:28,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 203 transitions. [2020-11-29 23:55:28,868 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2020-11-29 23:55:28,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:28,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:28,869 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,869 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,869 INFO L794 eck$LassoCheckResult]: Stem: 313#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 285#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 286#L680 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 290#L688 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 314#L278 assume 0 != main_~tmp~1; 315#L250 ~switchedOnBeforeTS~0 := 0; 273#L146 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 274#L167-1 [2020-11-29 23:55:28,870 INFO L796 eck$LassoCheckResult]: Loop: 274#L167-1 assume !false; 340#L913 assume test_~splverifierCounter~0 < 4; 341#L914 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 374#L922 assume !(0 != test_~tmp~8); 372#L922-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 371#L932 assume !(0 != test_~tmp___0~2); 369#L932-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 368#L942 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 333#L950-1 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 366#L819 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 362#L156 assume !(0 != ~pumpRunning~0); 360#L716 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 358#L748 assume !(0 != ~pumpRunning~0); 356#L723 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 355#L124 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 353#L167 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 274#L167-1 [2020-11-29 23:55:28,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:28,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 23:55:28,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:28,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680711387] [2020-11-29 23:55:28,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:28,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,039 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:29,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:29,040 INFO L82 PathProgramCache]: Analyzing trace with hash -572685307, now seen corresponding path program 1 times [2020-11-29 23:55:29,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:29,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935443915] [2020-11-29 23:55:29,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,077 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:29,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:29,080 INFO L82 PathProgramCache]: Analyzing trace with hash -747445941, now seen corresponding path program 1 times [2020-11-29 23:55:29,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:29,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034126077] [2020-11-29 23:55:29,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:29,209 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 23:55:29,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034126077] [2020-11-29 23:55:29,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:29,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:55:29,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659152947] [2020-11-29 23:55:29,380 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-29 23:55:29,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:55:29,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:55:29,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:55:29,439 INFO L87 Difference]: Start difference. First operand 143 states and 203 transitions. cyclomatic complexity: 63 Second operand 5 states. [2020-11-29 23:55:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:29,690 INFO L93 Difference]: Finished difference Result 398 states and 558 transitions. [2020-11-29 23:55:29,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:55:29,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 558 transitions. [2020-11-29 23:55:29,701 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2020-11-29 23:55:29,716 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 558 transitions. [2020-11-29 23:55:29,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2020-11-29 23:55:29,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2020-11-29 23:55:29,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 558 transitions. [2020-11-29 23:55:29,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:55:29,720 INFO L691 BuchiCegarLoop]: Abstraction has 398 states and 558 transitions. [2020-11-29 23:55:29,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 558 transitions. [2020-11-29 23:55:29,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 279. [2020-11-29 23:55:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-11-29 23:55:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 385 transitions. [2020-11-29 23:55:29,766 INFO L714 BuchiCegarLoop]: Abstraction has 279 states and 385 transitions. [2020-11-29 23:55:29,766 INFO L594 BuchiCegarLoop]: Abstraction has 279 states and 385 transitions. [2020-11-29 23:55:29,767 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:55:29,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 385 transitions. [2020-11-29 23:55:29,770 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2020-11-29 23:55:29,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:29,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:29,774 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:29,774 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:29,775 INFO L794 eck$LassoCheckResult]: Stem: 871#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 843#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 844#L680 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 848#L688 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 872#L278 assume 0 != main_~tmp~1; 873#L250 ~switchedOnBeforeTS~0 := 0; 829#L146 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 830#L167-1 [2020-11-29 23:55:29,775 INFO L796 eck$LassoCheckResult]: Loop: 830#L167-1 assume !false; 1065#L913 assume test_~splverifierCounter~0 < 4; 1064#L914 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 1063#L922 assume !(0 != test_~tmp~8); 1062#L922-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 1061#L932 assume !(0 != test_~tmp___0~2); 1057#L932-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 1056#L942 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 838#L950-1 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 839#L819 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 847#L156 assume !(0 != ~pumpRunning~0); 825#L716 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 826#L748 assume !(0 != ~pumpRunning~0); 897#L723 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1071#L124 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 1070#L167 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1069#L819-1 __utac_acc__Specification5_spec__3_#t~ret19 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 1068#L171 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 830#L167-1 [2020-11-29 23:55:29,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:29,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 23:55:29,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:29,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069843903] [2020-11-29 23:55:29,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,951 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:29,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:29,959 INFO L82 PathProgramCache]: Analyzing trace with hash -594781888, now seen corresponding path program 1 times [2020-11-29 23:55:29,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:29,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141565013] [2020-11-29 23:55:29,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,965 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,972 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:29,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:29,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1036026618, now seen corresponding path program 1 times [2020-11-29 23:55:29,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:29,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852515097] [2020-11-29 23:55:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,033 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,049 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:30,185 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-29 23:57:00,542 WARN L193 SmtUtils]: Spent 1.50 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 23:57:59,755 WARN L193 SmtUtils]: Spent 59.19 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 23:57:59,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:57:59 BoogieIcfgContainer [2020-11-29 23:57:59,952 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:57:59,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:57:59,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:57:59,953 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:57:59,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:27" (3/4) ... [2020-11-29 23:57:59,955 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:58:00,009 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c2506760-821a-4c12-9cc7-1addeb64cb81/bin/uautomizer/witness.graphml [2020-11-29 23:58:00,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:58:00,011 INFO L168 Benchmark]: Toolchain (without parser) took 153922.35 ms. Allocated memory was 115.3 MB in the beginning and 142.6 MB in the end (delta: 27.3 MB). Free memory was 87.1 MB in the beginning and 91.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:00,011 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 92.3 MB. Free memory was 50.2 MB in the beginning and 50.2 MB in the end (delta: 50.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:58:00,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.83 ms. Allocated memory is still 115.3 MB. Free memory was 87.0 MB in the beginning and 80.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:00,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.35 ms. Allocated memory is still 115.3 MB. Free memory was 80.9 MB in the beginning and 77.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:00,013 INFO L168 Benchmark]: Boogie Preprocessor took 38.79 ms. Allocated memory is still 115.3 MB. Free memory was 77.9 MB in the beginning and 75.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:58:00,013 INFO L168 Benchmark]: RCFGBuilder took 1058.94 ms. Allocated memory is still 115.3 MB. Free memory was 75.5 MB in the beginning and 54.0 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:00,014 INFO L168 Benchmark]: BuchiAutomizer took 152000.07 ms. Allocated memory was 115.3 MB in the beginning and 142.6 MB in the end (delta: 27.3 MB). Free memory was 54.0 MB in the beginning and 93.8 MB in the end (delta: -39.8 MB). Peak memory consumption was 55.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:00,014 INFO L168 Benchmark]: Witness Printer took 56.72 ms. Allocated memory is still 142.6 MB. Free memory was 93.8 MB in the beginning and 91.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:00,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 92.3 MB. Free memory was 50.2 MB in the beginning and 50.2 MB in the end (delta: 50.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 686.83 ms. Allocated memory is still 115.3 MB. Free memory was 87.0 MB in the beginning and 80.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.35 ms. Allocated memory is still 115.3 MB. Free memory was 80.9 MB in the beginning and 77.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.79 ms. Allocated memory is still 115.3 MB. Free memory was 77.9 MB in the beginning and 75.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1058.94 ms. Allocated memory is still 115.3 MB. Free memory was 75.5 MB in the beginning and 54.0 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 152000.07 ms. Allocated memory was 115.3 MB in the beginning and 142.6 MB in the end (delta: 27.3 MB). Free memory was 54.0 MB in the beginning and 93.8 MB in the end (delta: -39.8 MB). Peak memory consumption was 55.4 MB. Max. memory is 16.1 GB. * Witness Printer took 56.72 ms. Allocated memory is still 142.6 MB. Free memory was 93.8 MB in the beginning and 91.9 MB in the end (delta: 2.0 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 5 locations. The remainder module has 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 151.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 151.2s. Construction of modules took 0.2s. 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, 121 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 279 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 281 SDtfs, 458 SDslu, 422 SDs, 0 SdLazy, 92 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 912]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14034} State at position 1 is {NULL=0, NULL=14036, NULL=0, NULL=14034, NULL=0, retValue_acc=0, NULL=14058, NULL=0, NULL=0, NULL=0, NULL=14053, NULL=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a3fd013=0, NULL=14060, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62beddd6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a671f2e=0, NULL=0, NULL=0, NULL=14052, NULL=0, tmp=0, tmp___1=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=14055, retValue_acc=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=14049, NULL=14061, NULL=14046, \result=0, NULL=14057, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@293f17db=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68f11dc7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aa202ea=0, NULL=0, systemActive=1, waterLevel=1, NULL=14038, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54ffc0e8=0, NULL=0, NULL=0, NULL=0, NULL=14048, NULL=0, NULL=14040, NULL=0, NULL=0, NULL=0, NULL=14035, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=14054, \result=0, NULL=14059, tmp=1, NULL=0, NULL=0, NULL=14051, NULL=14043, NULL=14044, retValue_acc=1, NULL=0, NULL=14037, NULL=0, NULL=14042, tmp___2=70, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=14039, NULL=14041, head=0, tmp=0, NULL=0, NULL=14056, NULL=14045, NULL=14050, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59865df3=0, NULL=0, NULL=14047, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@485eecba=0, NULL=14062} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L140] int switchedOnBeforeTS ; [L189] int cleanupTimeShifts = 4; [L461] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L706] int pumpRunning = 0; [L707] int systemActive = 1; [L269] int retValue_acc ; [L270] int tmp ; [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); [L276] tmp = valid_product() [L278] COND TRUE \read(tmp) [L145] switchedOnBeforeTS = 0 [L903] int splverifierCounter ; [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L907] int tmp___2 ; [L910] splverifierCounter = 0 Loop: [L912] COND TRUE 1 [L914] COND TRUE splverifierCounter < 4 [L920] tmp = __VERIFIER_nondet_int() [L922] COND FALSE !(\read(tmp)) [L930] tmp___0 = __VERIFIER_nondet_int() [L932] COND FALSE !(\read(tmp___0)) [L940] tmp___2 = __VERIFIER_nondet_int() [L942] COND TRUE \read(tmp___2) [L897] systemActive = 1 [L815] int retValue_acc ; [L818] retValue_acc = pumpRunning [L819] return (retValue_acc); [L154] switchedOnBeforeTS = isPumpRunning() [L716] COND FALSE !(\read(pumpRunning)) [L723] COND TRUE \read(systemActive) [L745] int tmp ; [L748] COND FALSE !(\read(pumpRunning)) [L160] int tmp ; [L161] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L165] tmp = getWaterLevel() [L167] COND TRUE tmp != 2 [L815] int retValue_acc ; [L818] retValue_acc = pumpRunning [L819] return (retValue_acc); [L169] tmp___0 = isPumpRunning() [L171] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...