./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product14.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_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product14.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/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 1a8bc73e7e04851104c8b995337ce41a3de4c58d ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 00:00:15,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:00:15,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:00:15,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:00:15,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:00:15,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:00:15,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:00:15,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:00:15,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:00:15,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:00:15,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:00:15,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:00:15,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:00:15,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:00:15,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:00:15,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:00:15,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:00:15,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:00:15,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:00:15,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:00:15,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:00:15,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:00:15,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:00:15,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:00:15,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:00:15,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:00:15,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:00:15,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:00:15,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:00:15,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:00:15,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:00:15,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:00:15,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:00:15,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:00:15,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:00:15,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:00:15,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:00:15,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:00:15,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:00:15,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:00:15,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:00:15,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:00:15,788 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:00:15,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:00:15,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:00:15,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:00:15,792 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:00:15,792 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:00:15,792 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:00:15,792 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:00:15,793 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:00:15,793 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:00:15,794 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:00:15,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:00:15,794 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:00:15,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:00:15,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:00:15,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:00:15,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:00:15,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:00:15,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:00:15,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:00:15,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:00:15,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:00:15,796 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:00:15,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:00:15,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:00:15,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:00:15,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:00:15,797 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:00:15,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:00:15,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:00:15,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:00:15,798 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:00:15,800 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:00:15,800 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_8dfacd47-8a11-4ce0-979d-0579497889c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a8bc73e7e04851104c8b995337ce41a3de4c58d [2020-11-30 00:00:16,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:00:16,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:00:16,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:00:16,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:00:16,152 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:00:16,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product14.cil.c [2020-11-30 00:00:16,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/data/8ae597c10/e37d98afa6eb4f8697741b428703db0b/FLAG3e31459f3 [2020-11-30 00:00:16,905 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:00:16,906 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/sv-benchmarks/c/product-lines/minepump_spec5_product14.cil.c [2020-11-30 00:00:16,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/data/8ae597c10/e37d98afa6eb4f8697741b428703db0b/FLAG3e31459f3 [2020-11-30 00:00:17,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/data/8ae597c10/e37d98afa6eb4f8697741b428703db0b [2020-11-30 00:00:17,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:00:17,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:00:17,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:17,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:00:17,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:00:17,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b170ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17, skipping insertion in model container [2020-11-30 00:00:17,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:00:17,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:00:17,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:17,683 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:00:17,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:17,825 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:00:17,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17 WrapperNode [2020-11-30 00:00:17,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:17,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:17,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:00:17,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:00:17,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:17,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:00:17,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:00:17,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:00:17,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... [2020-11-30 00:00:17,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:00:17,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:00:17,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:00:17,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:00:17,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/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 [2020-11-30 00:00:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:00:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:00:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:00:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:00:19,223 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:00:19,227 INFO L298 CfgBuilder]: Removed 118 assume(true) statements. [2020-11-30 00:00:19,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:19 BoogieIcfgContainer [2020-11-30 00:00:19,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:00:19,233 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:00:19,233 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:00:19,238 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:00:19,239 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:19,239 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:00:17" (1/3) ... [2020-11-30 00:00:19,241 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d5c8418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:19, skipping insertion in model container [2020-11-30 00:00:19,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:19,242 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:17" (2/3) ... [2020-11-30 00:00:19,243 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d5c8418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:19, skipping insertion in model container [2020-11-30 00:00:19,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:19,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:19" (3/3) ... [2020-11-30 00:00:19,249 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product14.cil.c [2020-11-30 00:00:19,321 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:00:19,321 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:00:19,321 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:00:19,321 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:00:19,322 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:00:19,322 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:00:19,322 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:00:19,322 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:00:19,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-30 00:00:19,409 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-30 00:00:19,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:19,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:19,432 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:19,433 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:19,433 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:00:19,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-30 00:00:19,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-30 00:00:19,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:19,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:19,448 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:19,448 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:19,466 INFO L794 eck$LassoCheckResult]: Stem: 36#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 16#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 50#L901true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 56#L909true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 79#L185true assume 0 != main_~tmp~1; 7#L157true ~switchedOnBeforeTS~0 := 0; 11#L51true havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 59#L72-1true [2020-11-30 00:00:19,467 INFO L796 eck$LassoCheckResult]: Loop: 59#L72-1true assume !false; 32#L823true assume test_~splverifierCounter~0 < 4; 44#L824true test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 63#L832true assume !(0 != test_~tmp~7); 64#L832-1true test_~tmp___0~1 := test_#t~nondet76;havoc test_#t~nondet76; 48#L842true assume !(0 != test_~tmp___0~1); 35#L842-1true test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 17#L852true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 43#L860-2true havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 10#L683true __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 60#L61true assume !(0 != ~pumpRunning~0); 29#L581true assume !(0 != ~systemActive~0); 6#L588true havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 70#L807true __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 61#L72true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 59#L72-1true [2020-11-30 00:00:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:19,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:00:19,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:19,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164640806] [2020-11-30 00:00:19,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:19,804 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:19,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:20,003 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:20,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:20,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1011068559, now seen corresponding path program 1 times [2020-11-30 00:00:20,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:20,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213109372] [2020-11-30 00:00:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:20,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213109372] [2020-11-30 00:00:20,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:20,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:20,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027714060] [2020-11-30 00:00:20,089 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:00:20,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:20,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:20,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:20,110 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 3 states. [2020-11-30 00:00:20,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:20,173 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2020-11-30 00:00:20,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:20,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 101 transitions. [2020-11-30 00:00:20,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-30 00:00:20,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2020-11-30 00:00:20,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2020-11-30 00:00:20,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-11-30 00:00:20,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2020-11-30 00:00:20,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:20,205 INFO L691 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-30 00:00:20,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2020-11-30 00:00:20,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-30 00:00:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-30 00:00:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2020-11-30 00:00:20,265 INFO L714 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-30 00:00:20,266 INFO L594 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-30 00:00:20,267 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:00:20,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2020-11-30 00:00:20,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-30 00:00:20,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:20,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:20,278 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:20,279 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:20,279 INFO L794 eck$LassoCheckResult]: Stem: 209#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 186#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 187#L901 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 219#L909 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 222#L185 assume 0 != main_~tmp~1; 170#L157 ~switchedOnBeforeTS~0 := 0; 171#L51 havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 178#L72-1 [2020-11-30 00:00:20,280 INFO L796 eck$LassoCheckResult]: Loop: 178#L72-1 assume !false; 206#L823 assume test_~splverifierCounter~0 < 4; 207#L824 test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 213#L832 assume !(0 != test_~tmp~7); 205#L832-1 test_~tmp___0~1 := test_#t~nondet76;havoc test_#t~nondet76; 217#L842 assume !(0 != test_~tmp___0~1); 208#L842-1 test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 188#L852 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 190#L860-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 176#L683 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 177#L61 assume !(0 != ~pumpRunning~0); 167#L581 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 203#L613 assume !(0 != ~pumpRunning~0); 168#L588 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 169#L807 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 226#L72 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 178#L72-1 [2020-11-30 00:00:20,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:20,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:00:20,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:20,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373574084] [2020-11-30 00:00:20,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:20,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:20,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:20,610 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:20,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:20,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1257825733, now seen corresponding path program 1 times [2020-11-30 00:00:20,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:20,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706216581] [2020-11-30 00:00:20,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:20,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:20,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:20,656 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:20,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1083065099, now seen corresponding path program 1 times [2020-11-30 00:00:20,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:20,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792739971] [2020-11-30 00:00:20,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:20,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792739971] [2020-11-30 00:00:20,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:20,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:20,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968597321] [2020-11-30 00:00:20,981 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-30 00:00:21,089 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-11-30 00:00:21,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:21,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:00:21,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:00:21,102 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand 5 states. [2020-11-30 00:00:21,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:21,347 INFO L93 Difference]: Finished difference Result 188 states and 255 transitions. [2020-11-30 00:00:21,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:00:21,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 255 transitions. [2020-11-30 00:00:21,356 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2020-11-30 00:00:21,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 188 states and 255 transitions. [2020-11-30 00:00:21,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2020-11-30 00:00:21,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2020-11-30 00:00:21,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 255 transitions. [2020-11-30 00:00:21,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:21,379 INFO L691 BuchiCegarLoop]: Abstraction has 188 states and 255 transitions. [2020-11-30 00:00:21,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 255 transitions. [2020-11-30 00:00:21,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 129. [2020-11-30 00:00:21,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-30 00:00:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2020-11-30 00:00:21,391 INFO L714 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2020-11-30 00:00:21,391 INFO L594 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2020-11-30 00:00:21,391 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:00:21,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 172 transitions. [2020-11-30 00:00:21,401 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2020-11-30 00:00:21,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:21,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:21,404 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:21,404 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:21,404 INFO L794 eck$LassoCheckResult]: Stem: 483#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 462#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 463#L901 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 494#L909 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 500#L185 assume 0 != main_~tmp~1; 442#L157 ~switchedOnBeforeTS~0 := 0; 443#L51 havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 450#L72-1 [2020-11-30 00:00:21,405 INFO L796 eck$LassoCheckResult]: Loop: 450#L72-1 assume !false; 480#L823 assume test_~splverifierCounter~0 < 4; 481#L824 test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 488#L832 assume !(0 != test_~tmp~7); 562#L832-1 test_~tmp___0~1 := test_#t~nondet76;havoc test_#t~nondet76; 561#L842 assume !(0 != test_~tmp___0~1); 558#L842-1 test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 557#L852 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 555#L860-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 554#L683 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 502#L61 assume !(0 != ~pumpRunning~0); 503#L581 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 552#L613 assume !(0 != ~pumpRunning~0); 551#L588 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 550#L807 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 504#L72 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 505#L683-1 __utac_acc__Specification5_spec__3_#t~ret9 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 469#L76 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 450#L72-1 [2020-11-30 00:00:21,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:21,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:00:21,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:21,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076453233] [2020-11-30 00:00:21,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:21,497 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:21,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:21,592 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:21,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1884702976, now seen corresponding path program 1 times [2020-11-30 00:00:21,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:21,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297989749] [2020-11-30 00:00:21,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:21,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:21,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:21,613 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:21,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:21,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1443458246, now seen corresponding path program 1 times [2020-11-30 00:00:21,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:21,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638018139] [2020-11-30 00:00:21,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:21,673 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:21,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:21,733 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:21,875 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-30 00:01:56,149 WARN L193 SmtUtils]: Spent 1.57 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:02:59,984 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:03:00,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:03:00 BoogieIcfgContainer [2020-11-30 00:03:00,338 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:03:00,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:03:00,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:03:00,339 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:03:00,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:19" (3/4) ... [2020-11-30 00:03:00,343 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:03:00,414 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8dfacd47-8a11-4ce0-979d-0579497889c0/bin/uautomizer/witness.graphml [2020-11-30 00:03:00,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:03:00,417 INFO L168 Benchmark]: Toolchain (without parser) took 163218.49 ms. Allocated memory was 90.2 MB in the beginning and 142.6 MB in the end (delta: 52.4 MB). Free memory was 58.4 MB in the beginning and 68.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:00,417 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 47.1 MB in the beginning and 47.1 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:03:00,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.29 ms. Allocated memory is still 90.2 MB. Free memory was 58.1 MB in the beginning and 57.1 MB in the end (delta: 973.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:00,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.13 ms. Allocated memory is still 90.2 MB. Free memory was 57.1 MB in the beginning and 54.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:00,420 INFO L168 Benchmark]: Boogie Preprocessor took 52.13 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 52.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:00,421 INFO L168 Benchmark]: RCFGBuilder took 1272.27 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 52.0 MB in the beginning and 54.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:00,422 INFO L168 Benchmark]: BuchiAutomizer took 161104.88 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 53.9 MB in the beginning and 71.7 MB in the end (delta: -17.7 MB). Peak memory consumption was 57.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:00,423 INFO L168 Benchmark]: Witness Printer took 76.50 ms. Allocated memory is still 142.6 MB. Free memory was 71.7 MB in the beginning and 68.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:00,428 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 47.1 MB in the beginning and 47.1 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 623.29 ms. Allocated memory is still 90.2 MB. Free memory was 58.1 MB in the beginning and 57.1 MB in the end (delta: 973.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.13 ms. Allocated memory is still 90.2 MB. Free memory was 57.1 MB in the beginning and 54.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.13 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 52.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1272.27 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 52.0 MB in the beginning and 54.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 161104.88 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 53.9 MB in the beginning and 71.7 MB in the end (delta: -17.7 MB). Peak memory consumption was 57.4 MB. Max. memory is 16.1 GB. * Witness Printer took 76.50 ms. Allocated memory is still 142.6 MB. Free memory was 71.7 MB in the beginning and 68.5 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 5 locations. The remainder module has 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 161.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 160.3s. 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, 59 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 241 SDtfs, 372 SDslu, 272 SDs, 0 SdLazy, 70 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 822]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=1, NULL=0, NULL=0, NULL=0, NULL=11589, NULL=0, NULL=0, NULL=11606, NULL=11601, NULL=11583, methaneLevelCritical=0, NULL=11586, NULL=0, NULL=11590, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27d0336a=0, NULL=11597, tmp___1=0, NULL=11598, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4896f2b2=0, NULL=11593, cleanupTimeShifts=4, NULL=11585, switchedOnBeforeTS=0, NULL=11599, NULL=10215, NULL=11605, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@345651a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46890411=70, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f4b5e8e=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=11602, NULL=0, NULL=0, NULL=0, NULL=11587, NULL=0, NULL=0, NULL=11607, tmp___0=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=11592, NULL=11584, NULL=11600, tmp=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1aa273f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d513b0d=0, retValue_acc=1, NULL=0, NULL=0, NULL=11608, retValue_acc=1, tmp___2=70, NULL=11603, tmp___0=0, splverifierCounter=0, NULL=0, NULL=11604, NULL=11609, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e95848f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d2bc473=0, head=0, tmp=0, NULL=11591, NULL=0, NULL=0, NULL=11596, NULL=11594, NULL=11588, NULL=11595, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int switchedOnBeforeTS ; [L94] int cleanupTimeShifts = 4; [L368] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L571] int pumpRunning = 0; [L572] int systemActive = 1; [L732] int waterLevel = 1; [L733] int methaneLevelCritical = 0; [L176] int retValue_acc ; [L177] int tmp ; [L905] int retValue_acc ; [L908] retValue_acc = 1 [L909] return (retValue_acc); [L183] tmp = valid_product() [L185] COND TRUE \read(tmp) [L50] switchedOnBeforeTS = 0 [L813] int splverifierCounter ; [L814] int tmp ; [L815] int tmp___0 ; [L816] int tmp___1 ; [L817] int tmp___2 ; [L820] splverifierCounter = 0 Loop: [L822] COND TRUE 1 [L824] COND TRUE splverifierCounter < 4 [L830] tmp = __VERIFIER_nondet_int() [L832] COND FALSE !(\read(tmp)) [L840] tmp___0 = __VERIFIER_nondet_int() [L842] COND FALSE !(\read(tmp___0)) [L850] tmp___2 = __VERIFIER_nondet_int() [L852] COND TRUE \read(tmp___2) [L727] systemActive = 1 [L679] int retValue_acc ; [L682] retValue_acc = pumpRunning [L683] return (retValue_acc); [L59] switchedOnBeforeTS = isPumpRunning() [L581] COND FALSE !(\read(pumpRunning)) [L588] COND TRUE \read(systemActive) [L610] int tmp ; [L613] COND FALSE !(\read(pumpRunning)) [L65] int tmp ; [L66] int tmp___0 ; [L803] int retValue_acc ; [L806] retValue_acc = waterLevel [L807] return (retValue_acc); [L70] tmp = getWaterLevel() [L72] COND TRUE tmp != 2 [L679] int retValue_acc ; [L682] retValue_acc = pumpRunning [L683] return (retValue_acc); [L74] tmp___0 = isPumpRunning() [L76] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...