./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.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_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/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 1fc4b6513d54dfae6e097800b1200a0f44455272 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:55:18,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:18,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:18,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:18,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:18,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:18,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:18,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:18,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:18,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:18,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:18,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:18,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:18,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:18,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:18,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:18,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:18,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:18,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:18,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:18,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:18,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:18,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:18,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:18,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:18,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:18,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:18,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:18,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:18,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:18,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:18,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:18,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:18,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:18,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:18,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:18,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:18,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:18,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:18,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:18,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:18,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:55:18,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:18,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:18,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:18,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:18,989 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:18,990 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:55:18,990 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:55:18,991 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:55:18,991 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:55:18,992 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:55:18,993 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:55:18,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:18,994 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:18,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:55:18,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:18,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:18,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:18,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:55:19,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:55:19,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:55:19,016 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:19,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:19,017 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:55:19,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:19,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:55:19,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:19,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:19,019 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:55:19,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:19,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:19,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:19,023 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:55:19,025 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:55:19,026 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_043c823a-6ce8-4593-84d8-8b9e65cdae45/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fc4b6513d54dfae6e097800b1200a0f44455272 [2020-11-30 00:55:19,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:19,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:19,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:19,504 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:19,506 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:19,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2020-11-30 00:55:19,613 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/data/ca84f14fd/5d7113da8c8a44bdb6d48c38a16b7fe5/FLAG5ee4facb5 [2020-11-30 00:55:20,401 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:20,402 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2020-11-30 00:55:20,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/data/ca84f14fd/5d7113da8c8a44bdb6d48c38a16b7fe5/FLAG5ee4facb5 [2020-11-30 00:55:20,645 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/data/ca84f14fd/5d7113da8c8a44bdb6d48c38a16b7fe5 [2020-11-30 00:55:20,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:20,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:20,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:20,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:20,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:20,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9372a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20, skipping insertion in model container [2020-11-30 00:55:20,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:20,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:55:21,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:21,278 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:55:21,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:21,501 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:55:21,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21 WrapperNode [2020-11-30 00:55:21,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:21,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:21,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:55:21,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:55:21,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:21,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:55:21,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:55:21,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:55:21,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... [2020-11-30 00:55:21,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:55:21,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:55:21,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:55:21,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:55:21,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/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 00:55:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:55:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:55:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:55:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:55:23,125 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:55:23,126 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-11-30 00:55:23,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:23 BoogieIcfgContainer [2020-11-30 00:55:23,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:55:23,131 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:55:23,132 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:55:23,136 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:55:23,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:23,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:55:20" (1/3) ... [2020-11-30 00:55:23,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58e4bbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:55:23, skipping insertion in model container [2020-11-30 00:55:23,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:23,141 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:21" (2/3) ... [2020-11-30 00:55:23,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58e4bbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:55:23, skipping insertion in model container [2020-11-30 00:55:23,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:23,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:23" (3/3) ... [2020-11-30 00:55:23,144 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2020-11-30 00:55:23,216 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:55:23,216 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:55:23,216 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:55:23,216 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:55:23,217 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:55:23,217 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:55:23,217 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:55:23,217 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:55:23,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-11-30 00:55:23,264 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2020-11-30 00:55:23,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:23,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:23,273 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:55:23,273 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:23,274 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:55:23,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-11-30 00:55:23,283 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2020-11-30 00:55:23,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:23,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:23,285 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:55:23,285 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:23,292 INFO L794 eck$LassoCheckResult]: Stem: 27#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 69#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 87#L75true main_#t~ret45 := valid_product_#res;main_~tmp~5 := main_#t~ret45;havoc main_#t~ret45; 89#L540true assume 0 != main_~tmp~5; 71#L517true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 44#L345-1true [2020-11-30 00:55:23,294 INFO L796 eck$LassoCheckResult]: Loop: 44#L345-1true assume !false; 5#L274true assume test_~splverifierCounter~0 < 4; 21#L275true test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 45#L283true assume !(0 != test_~tmp~3); 39#L283-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 16#L293true assume !(0 != test_~tmp___0~1); 38#L293-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 3#L303true assume 0 != test_~tmp___2~0; 64#L309-2true assume !(0 != ~pumpRunning~0); 88#L97true assume !(0 != ~systemActive~0); 54#L104true havoc __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_#t~ret34, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 53#L407-1true __utac_acc__Specification3_spec__1_#t~ret32 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 86#L339true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 44#L345-1true [2020-11-30 00:55:23,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:23,302 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:55:23,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:23,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129013577] [2020-11-30 00:55:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:23,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:23,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:24,037 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:24,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:24,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1681191243, now seen corresponding path program 1 times [2020-11-30 00:55:24,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:24,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998985060] [2020-11-30 00:55:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:24,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:24,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:24,098 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:24,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:24,113 INFO L82 PathProgramCache]: Analyzing trace with hash 33087695, now seen corresponding path program 1 times [2020-11-30 00:55:24,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:24,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200320788] [2020-11-30 00:55:24,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:24,415 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 00:55:24,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200320788] [2020-11-30 00:55:24,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:24,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:55:24,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952829700] [2020-11-30 00:55:24,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:24,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:55:24,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:55:24,588 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 6 states. [2020-11-30 00:55:24,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:24,893 INFO L93 Difference]: Finished difference Result 90 states and 124 transitions. [2020-11-30 00:55:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:55:24,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 124 transitions. [2020-11-30 00:55:24,908 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 00:55:24,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 83 states and 117 transitions. [2020-11-30 00:55:24,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 83 [2020-11-30 00:55:24,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 83 [2020-11-30 00:55:24,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 117 transitions. [2020-11-30 00:55:24,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:55:24,930 INFO L691 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-11-30 00:55:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 117 transitions. [2020-11-30 00:55:24,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-11-30 00:55:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-11-30 00:55:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2020-11-30 00:55:24,973 INFO L714 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-11-30 00:55:24,973 INFO L594 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-11-30 00:55:24,974 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:55:24,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 117 transitions. [2020-11-30 00:55:24,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 00:55:24,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:24,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:24,978 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:55:24,978 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:24,978 INFO L794 eck$LassoCheckResult]: Stem: 240#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 216#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 217#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 280#L75 main_#t~ret45 := valid_product_#res;main_~tmp~5 := main_#t~ret45;havoc main_#t~ret45; 283#L540 assume 0 != main_~tmp~5; 281#L517 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 254#L345-1 [2020-11-30 00:55:24,979 INFO L796 eck$LassoCheckResult]: Loop: 254#L345-1 assume !false; 206#L274 assume test_~splverifierCounter~0 < 4; 207#L275 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 227#L283 assume !(0 != test_~tmp~3); 257#L283-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 218#L293 assume !(0 != test_~tmp___0~1); 211#L293-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 201#L303 assume 0 != test_~tmp___2~0; 202#L309-2 assume !(0 != ~pumpRunning~0); 245#L97 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 277#L129 assume !(0 == ~pumpRunning~0); 258#L104 havoc __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_#t~ret34, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 267#L407-1 __utac_acc__Specification3_spec__1_#t~ret32 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 268#L339 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 254#L345-1 [2020-11-30 00:55:24,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:24,979 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:55:24,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:24,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635330086] [2020-11-30 00:55:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:25,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:25,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:25,249 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:25,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:25,258 INFO L82 PathProgramCache]: Analyzing trace with hash -619089842, now seen corresponding path program 1 times [2020-11-30 00:55:25,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:25,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645731348] [2020-11-30 00:55:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:25,295 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 00:55:25,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645731348] [2020-11-30 00:55:25,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:25,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:55:25,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917637706] [2020-11-30 00:55:25,297 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:55:25,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:25,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:25,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:25,299 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-11-30 00:55:25,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:25,514 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2020-11-30 00:55:25,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:25,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 177 transitions. [2020-11-30 00:55:25,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2020-11-30 00:55:25,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 130 states and 177 transitions. [2020-11-30 00:55:25,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 130 [2020-11-30 00:55:25,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 130 [2020-11-30 00:55:25,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130 states and 177 transitions. [2020-11-30 00:55:25,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:55:25,533 INFO L691 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2020-11-30 00:55:25,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states and 177 transitions. [2020-11-30 00:55:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-11-30 00:55:25,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-30 00:55:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2020-11-30 00:55:25,557 INFO L714 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2020-11-30 00:55:25,558 INFO L594 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2020-11-30 00:55:25,558 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:55:25,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 177 transitions. [2020-11-30 00:55:25,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2020-11-30 00:55:25,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:25,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:25,562 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:55:25,562 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:25,563 INFO L794 eck$LassoCheckResult]: Stem: 457#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 433#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 434#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 508#L75 main_#t~ret45 := valid_product_#res;main_~tmp~5 := main_#t~ret45;havoc main_#t~ret45; 515#L540 assume 0 != main_~tmp~5; 510#L517 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 511#L345-1 [2020-11-30 00:55:25,563 INFO L796 eck$LassoCheckResult]: Loop: 511#L345-1 assume !false; 425#L274 assume test_~splverifierCounter~0 < 4; 426#L275 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 446#L283 assume !(0 != test_~tmp~3); 473#L283-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 437#L293 assume !(0 != test_~tmp___0~1); 430#L293-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 420#L303 assume 0 != test_~tmp___2~0; 421#L309-2 assume !(0 != ~pumpRunning~0); 503#L97 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 505#L129 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 500#L447 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 501#L452 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 468#L249 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 467#L249-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 435#L255 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 436#L133 assume !(0 != processEnvironment_~tmp~0); 479#L104 havoc __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_#t~ret34, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 548#L407-1 __utac_acc__Specification3_spec__1_#t~ret32 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 544#L339 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 511#L345-1 [2020-11-30 00:55:25,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:25,564 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:55:25,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:25,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79181185] [2020-11-30 00:55:25,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:25,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:25,732 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:25,748 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:25,749 INFO L82 PathProgramCache]: Analyzing trace with hash -21695270, now seen corresponding path program 1 times [2020-11-30 00:55:25,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:25,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107566810] [2020-11-30 00:55:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:25,770 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:25,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:25,783 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:25,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:25,785 INFO L82 PathProgramCache]: Analyzing trace with hash -6983296, now seen corresponding path program 1 times [2020-11-30 00:55:25,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:25,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638901750] [2020-11-30 00:55:25,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:25,897 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 00:55:25,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638901750] [2020-11-30 00:55:25,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:25,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:55:25,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490016429] [2020-11-30 00:55:26,121 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-11-30 00:55:26,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:26,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:55:26,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:55:26,206 INFO L87 Difference]: Start difference. First operand 130 states and 177 transitions. cyclomatic complexity: 49 Second operand 5 states. [2020-11-30 00:55:26,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:26,478 INFO L93 Difference]: Finished difference Result 434 states and 594 transitions. [2020-11-30 00:55:26,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:55:26,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 434 states and 594 transitions. [2020-11-30 00:55:26,489 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 314 [2020-11-30 00:55:26,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 434 states to 434 states and 594 transitions. [2020-11-30 00:55:26,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 434 [2020-11-30 00:55:26,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 434 [2020-11-30 00:55:26,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 434 states and 594 transitions. [2020-11-30 00:55:26,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:55:26,516 INFO L691 BuchiCegarLoop]: Abstraction has 434 states and 594 transitions. [2020-11-30 00:55:26,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states and 594 transitions. [2020-11-30 00:55:26,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 254. [2020-11-30 00:55:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-11-30 00:55:26,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 340 transitions. [2020-11-30 00:55:26,569 INFO L714 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2020-11-30 00:55:26,570 INFO L594 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2020-11-30 00:55:26,570 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:55:26,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 254 states and 340 transitions. [2020-11-30 00:55:26,575 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2020-11-30 00:55:26,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:26,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:26,579 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:55:26,579 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:26,580 INFO L794 eck$LassoCheckResult]: Stem: 1042#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1015#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1016#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1098#L75 main_#t~ret45 := valid_product_#res;main_~tmp~5 := main_#t~ret45;havoc main_#t~ret45; 1110#L540 assume 0 != main_~tmp~5; 1100#L517 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1065#L345-1 [2020-11-30 00:55:26,580 INFO L796 eck$LassoCheckResult]: Loop: 1065#L345-1 assume !false; 1066#L274 assume test_~splverifierCounter~0 < 4; 1030#L275 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 1031#L283 assume !(0 != test_~tmp~3); 1056#L283-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 1019#L293 assume !(0 != test_~tmp___0~1); 1020#L293-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 1002#L303 assume 0 != test_~tmp___2~0; 1003#L309-2 assume !(0 != ~pumpRunning~0); 1091#L97 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1226#L129 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 1225#L447 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 1224#L452 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 1053#L249 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1052#L249-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1017#L255 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 1018#L133 assume !(0 != processEnvironment_~tmp~0); 1063#L104 havoc __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_#t~ret34, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 1078#L407-1 __utac_acc__Specification3_spec__1_#t~ret32 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 1079#L339 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 1022#L439 __utac_acc__Specification3_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret33;havoc __utac_acc__Specification3_spec__1_#t~ret33; 1023#L345 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1065#L345-1 [2020-11-30 00:55:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:26,582 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-11-30 00:55:26,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:26,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208331973] [2020-11-30 00:55:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:26,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:26,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:26,727 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:26,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:26,728 INFO L82 PathProgramCache]: Analyzing trace with hash 625688430, now seen corresponding path program 1 times [2020-11-30 00:55:26,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:26,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126736447] [2020-11-30 00:55:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:26,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:26,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:26,756 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:26,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1878993556, now seen corresponding path program 1 times [2020-11-30 00:55:26,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:26,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827683385] [2020-11-30 00:55:26,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:26,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:26,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:26,925 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:27,133 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-11-30 00:55:27,248 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-11-30 00:57:17,900 WARN L193 SmtUtils]: Spent 1.84 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:58:34,865 WARN L193 SmtUtils]: Spent 1.28 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:58:35,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:58:35 BoogieIcfgContainer [2020-11-30 00:58:35,402 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:58:35,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:58:35,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:58:35,404 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:58:35,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:23" (3/4) ... [2020-11-30 00:58:35,408 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:58:35,487 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_043c823a-6ce8-4593-84d8-8b9e65cdae45/bin/uautomizer/witness.graphml [2020-11-30 00:58:35,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:58:35,489 INFO L168 Benchmark]: Toolchain (without parser) took 194822.22 ms. Allocated memory was 104.9 MB in the beginning and 174.1 MB in the end (delta: 69.2 MB). Free memory was 85.1 MB in the beginning and 134.3 MB in the end (delta: -49.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:35,490 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 77.6 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:58:35,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.84 ms. Allocated memory is still 104.9 MB. Free memory was 84.7 MB in the beginning and 64.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:35,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 164.04 ms. Allocated memory is still 104.9 MB. Free memory was 64.0 MB in the beginning and 60.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:35,492 INFO L168 Benchmark]: Boogie Preprocessor took 58.49 ms. Allocated memory is still 104.9 MB. Free memory was 60.7 MB in the beginning and 58.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:35,493 INFO L168 Benchmark]: RCFGBuilder took 1395.74 ms. Allocated memory is still 104.9 MB. Free memory was 58.5 MB in the beginning and 50.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:35,493 INFO L168 Benchmark]: BuchiAutomizer took 192271.30 ms. Allocated memory was 104.9 MB in the beginning and 174.1 MB in the end (delta: 69.2 MB). Free memory was 50.8 MB in the beginning and 136.4 MB in the end (delta: -85.6 MB). Peak memory consumption was 80.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:35,494 INFO L168 Benchmark]: Witness Printer took 84.44 ms. Allocated memory is still 174.1 MB. Free memory was 136.4 MB in the beginning and 134.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:35,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 77.6 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 807.84 ms. Allocated memory is still 104.9 MB. Free memory was 84.7 MB in the beginning and 64.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 164.04 ms. Allocated memory is still 104.9 MB. Free memory was 64.0 MB in the beginning and 60.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.49 ms. Allocated memory is still 104.9 MB. Free memory was 60.7 MB in the beginning and 58.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1395.74 ms. Allocated memory is still 104.9 MB. Free memory was 58.5 MB in the beginning and 50.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 192271.30 ms. Allocated memory was 104.9 MB in the beginning and 174.1 MB in the end (delta: 69.2 MB). Free memory was 50.8 MB in the beginning and 136.4 MB in the end (delta: -85.6 MB). Peak memory consumption was 80.3 MB. Max. memory is 16.1 GB. * Witness Printer took 84.44 ms. Allocated memory is still 174.1 MB. Free memory was 136.4 MB in the beginning and 134.3 MB in the end (delta: 2.1 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 254 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 192.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 191.0s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 180 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 254 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 392 SDtfs, 891 SDslu, 536 SDs, 0 SdLazy, 108 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 273]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=19606} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22f82881=0, NULL=19606, NULL=0, NULL=19630, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@428ba40=0, NULL=19609, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59f2d629=0, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c5d5df=0, NULL=0, NULL=19629, NULL=0, tmp___1=0, NULL=0, NULL=19621, NULL=19620, cleanupTimeShifts=4, NULL=19623, tmp=0, NULL=19615, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f6cefe=0, NULL=19625, \result=1, head=0, pumpRunning=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@721b7b49=0, NULL=19634, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c6a3f84=0, NULL=0, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12be808f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@665568e=61, NULL=0, NULL=0, NULL=19628, NULL=0, NULL=0, tmp=1, NULL=0, retValue_acc=1, NULL=0, tmp___0=0, NULL=19616, NULL=19627, NULL=19608, tmp=0, head=0, NULL=0, NULL=19619, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50825470=0, NULL=0, NULL=0, NULL=19612, retValue_acc=0, tmp___0=0, NULL=0, NULL=0, NULL=19631, NULL=0, NULL=0, tmp___0=1, NULL=0, systemActive=1, NULL=19626, \result=1, NULL=0, NULL=19614, \result=0, retValue_acc=0, NULL=19622, NULL=19632, \result=0, NULL=19633, NULL=0, NULL=0, NULL=19607, NULL=19618, NULL=19617, retValue_acc=1, tmp___2=61, splverifierCounter=0, NULL=0, \result=0, NULL=19624, tmp___1=0, NULL=0, NULL=0, NULL=19613, NULL=0, NULL=19611, NULL=19610} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L89] int pumpRunning = 0; [L90] int systemActive = 1; [L364] int waterLevel = 1; [L365] int methaneLevelCritical = 0; [L458] int cleanupTimeShifts = 4; [L723] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L531] int retValue_acc ; [L532] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L264] int splverifierCounter ; [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L268] int tmp___2 ; [L271] splverifierCounter = 0 Loop: [L273] COND TRUE 1 [L275] COND TRUE splverifierCounter < 4 [L281] tmp = __VERIFIER_nondet_int() [L283] COND FALSE !(\read(tmp)) [L291] tmp___0 = __VERIFIER_nondet_int() [L293] COND FALSE !(\read(tmp___0)) [L301] tmp___2 = __VERIFIER_nondet_int() [L303] COND TRUE \read(tmp___2) [L97] COND FALSE !(\read(pumpRunning)) [L104] COND TRUE \read(systemActive) [L126] int tmp ; [L129] COND TRUE ! pumpRunning [L241] int retValue_acc ; [L242] int tmp ; [L243] int tmp___0 ; [L444] int retValue_acc ; [L447] COND TRUE waterLevel < 2 [L448] retValue_acc = 1 [L449] return (retValue_acc); [L247] tmp = isHighWaterSensorDry() [L249] COND TRUE \read(tmp) [L250] tmp___0 = 0 [L254] retValue_acc = tmp___0 [L255] return (retValue_acc); [L131] tmp = isHighWaterLevel() [L133] COND FALSE !(\read(tmp)) [L331] int tmp ; [L332] int tmp___0 ; [L333] int tmp___1 ; [L403] int retValue_acc ; [L406] retValue_acc = methaneLevelCritical [L407] return (retValue_acc); [L337] tmp = isMethaneLevelCritical() [L339] COND FALSE !(\read(tmp)) [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L343] tmp___0 = getWaterLevel() [L345] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...