./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.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_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/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 c3af3488d01362ddaf924617126551b8dab4cf6b ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:53:31,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:53:31,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:53:31,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:53:31,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:53:31,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:53:31,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:53:31,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:53:31,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:53:31,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:53:31,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:53:31,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:53:31,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:53:31,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:53:31,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:53:31,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:53:31,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:53:31,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:53:31,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:53:31,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:53:31,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:53:31,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:53:31,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:53:31,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:53:31,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:53:31,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:53:31,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:53:31,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:53:31,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:53:31,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:53:31,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:53:31,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:53:31,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:53:31,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:53:31,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:53:31,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:53:31,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:53:31,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:53:31,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:53:31,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:53:31,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:53:31,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:53:31,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:53:31,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:53:31,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:53:31,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:53:31,836 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:53:31,836 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:53:31,837 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:53:31,837 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:53:31,837 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:53:31,837 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:53:31,839 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:53:31,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:53:31,839 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:53:31,840 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:53:31,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:53:31,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:53:31,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:53:31,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:53:31,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:53:31,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:53:31,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:53:31,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:53:31,842 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:53:31,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:53:31,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:53:31,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:53:31,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:53:31,843 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:53:31,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:53:31,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:53:31,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:53:31,846 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:53:31,848 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:53:31,848 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_0d91aef9-c8d8-463a-8996-0966514fe20a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3af3488d01362ddaf924617126551b8dab4cf6b [2020-11-29 19:53:32,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:53:32,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:53:32,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:53:32,297 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:53:32,298 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:53:32,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2020-11-29 19:53:32,400 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/data/b42a57092/dc507d8e229d4163a373c475a3b551c3/FLAGa043aecea [2020-11-29 19:53:33,106 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:53:33,107 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2020-11-29 19:53:33,123 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/data/b42a57092/dc507d8e229d4163a373c475a3b551c3/FLAGa043aecea [2020-11-29 19:53:33,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/data/b42a57092/dc507d8e229d4163a373c475a3b551c3 [2020-11-29 19:53:33,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:53:33,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:53:33,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:53:33,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:53:33,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:53:33,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:53:33" (1/1) ... [2020-11-29 19:53:33,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369c6625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:33, skipping insertion in model container [2020-11-29 19:53:33,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:53:33" (1/1) ... [2020-11-29 19:53:33,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:53:33,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:53:33,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:53:33,866 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:53:33,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:53:34,017 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:53:34,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34 WrapperNode [2020-11-29 19:53:34,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:53:34,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:53:34,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:53:34,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:53:34,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:53:34,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:53:34,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:53:34,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:53:34,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... [2020-11-29 19:53:34,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:53:34,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:53:34,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:53:34,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:53:34,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:53:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:53:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:53:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:53:34,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:53:35,277 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:53:35,278 INFO L298 CfgBuilder]: Removed 170 assume(true) statements. [2020-11-29 19:53:35,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:35 BoogieIcfgContainer [2020-11-29 19:53:35,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:53:35,281 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:53:35,281 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:53:35,289 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:53:35,290 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:35,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:53:33" (1/3) ... [2020-11-29 19:53:35,291 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bbe3676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:53:35, skipping insertion in model container [2020-11-29 19:53:35,291 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:35,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:34" (2/3) ... [2020-11-29 19:53:35,292 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bbe3676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:53:35, skipping insertion in model container [2020-11-29 19:53:35,292 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:35,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:35" (3/3) ... [2020-11-29 19:53:35,296 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-11-29 19:53:35,351 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:53:35,351 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:53:35,351 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:53:35,351 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:53:35,351 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:53:35,352 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:53:35,352 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:53:35,352 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:53:35,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 19:53:35,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 19:53:35,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:35,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:35,403 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:35,404 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:35,404 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:53:35,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 19:53:35,411 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 19:53:35,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:35,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:35,412 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:35,412 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:35,417 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);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(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 5#L-1true havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 57#L912true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 64#L920true main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 83#L226true assume 0 != main_~tmp~0; 42#L199true havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L940-1true [2020-11-29 19:53:35,418 INFO L796 eck$LassoCheckResult]: Loop: 19#L940-1true assume !false; 22#L618true assume test_~splverifierCounter~0 < 4; 107#L619true test_~tmp~4 := test_#t~nondet53;havoc test_#t~nondet53; 110#L627true assume !(0 != test_~tmp~4); 111#L627-1true test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 28#L637true assume !(0 != test_~tmp___0~0); 30#L637-1true test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 81#L647true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 90#L655-2true assume !(0 != ~pumpRunning~0); 105#L685true assume !(0 != ~systemActive~0); 25#L692true havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 14#L92-1true __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 56#L934true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 19#L940-1true [2020-11-29 19:53:35,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:35,424 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:53:35,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:35,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368342716] [2020-11-29 19:53:35,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:35,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:35,949 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:35,999 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:36,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344202, now seen corresponding path program 1 times [2020-11-29 19:53:36,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:36,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508856670] [2020-11-29 19:53:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:53:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:53:36,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508856670] [2020-11-29 19:53:36,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:53:36,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:53:36,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520373486] [2020-11-29 19:53:36,083 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:53:36,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:53:36,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:53:36,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:53:36,102 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2020-11-29 19:53:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:53:36,179 INFO L93 Difference]: Finished difference Result 108 states and 152 transitions. [2020-11-29 19:53:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:53:36,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 152 transitions. [2020-11-29 19:53:36,190 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 19:53:36,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 144 transitions. [2020-11-29 19:53:36,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2020-11-29 19:53:36,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2020-11-29 19:53:36,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 144 transitions. [2020-11-29 19:53:36,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:53:36,213 INFO L691 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2020-11-29 19:53:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 144 transitions. [2020-11-29 19:53:36,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-11-29 19:53:36,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 19:53:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2020-11-29 19:53:36,263 INFO L714 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2020-11-29 19:53:36,264 INFO L594 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2020-11-29 19:53:36,264 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:53:36,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 144 transitions. [2020-11-29 19:53:36,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 19:53:36,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:36,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:36,275 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:36,276 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:36,276 INFO L794 eck$LassoCheckResult]: Stem: 324#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);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(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 232#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 233#L912 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 305#L920 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 311#L226 assume 0 != main_~tmp~0; 289#L199 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 255#L940-1 [2020-11-29 19:53:36,276 INFO L796 eck$LassoCheckResult]: Loop: 255#L940-1 assume !false; 257#L618 assume test_~splverifierCounter~0 < 4; 261#L619 test_~tmp~4 := test_#t~nondet53;havoc test_#t~nondet53; 328#L627 assume !(0 != test_~tmp~4); 307#L627-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 268#L637 assume !(0 != test_~tmp___0~0); 269#L637-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 272#L647 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 318#L655-2 assume !(0 != ~pumpRunning~0); 322#L685 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 325#L743 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 252#L717-1 assume !(0 != ~pumpRunning~0); 249#L692 havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 245#L92-1 __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 246#L934 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 255#L940-1 [2020-11-29 19:53:36,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:36,287 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:53:36,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:36,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137374454] [2020-11-29 19:53:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:36,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:36,440 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:36,472 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:36,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:36,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435480, now seen corresponding path program 1 times [2020-11-29 19:53:36,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:36,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063173998] [2020-11-29 19:53:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:36,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:36,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:36,495 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:36,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:36,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149570, now seen corresponding path program 1 times [2020-11-29 19:53:36,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:36,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988162477] [2020-11-29 19:53:36,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:53:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:53:36,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988162477] [2020-11-29 19:53:36,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:53:36,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:53:36,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736044557] [2020-11-29 19:53:36,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:53:36,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:53:36,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:53:36,760 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2020-11-29 19:53:36,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:53:36,982 INFO L93 Difference]: Finished difference Result 355 states and 516 transitions. [2020-11-29 19:53:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 19:53:36,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 516 transitions. [2020-11-29 19:53:36,990 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 241 [2020-11-29 19:53:37,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 355 states and 516 transitions. [2020-11-29 19:53:37,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2020-11-29 19:53:37,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2020-11-29 19:53:37,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 355 states and 516 transitions. [2020-11-29 19:53:37,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:53:37,011 INFO L691 BuchiCegarLoop]: Abstraction has 355 states and 516 transitions. [2020-11-29 19:53:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states and 516 transitions. [2020-11-29 19:53:37,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 196. [2020-11-29 19:53:37,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-11-29 19:53:37,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2020-11-29 19:53:37,030 INFO L714 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2020-11-29 19:53:37,031 INFO L594 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2020-11-29 19:53:37,031 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:53:37,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 278 transitions. [2020-11-29 19:53:37,033 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2020-11-29 19:53:37,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:37,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:37,035 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:37,036 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:37,036 INFO L794 eck$LassoCheckResult]: Stem: 823#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);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(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 706#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 707#L912 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 793#L920 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 800#L226 assume 0 != main_~tmp~0; 772#L199 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 729#L940-1 [2020-11-29 19:53:37,036 INFO L796 eck$LassoCheckResult]: Loop: 729#L940-1 assume !false; 734#L618 assume test_~splverifierCounter~0 < 4; 739#L619 test_~tmp~4 := test_#t~nondet53;havoc test_#t~nondet53; 830#L627 assume !(0 != test_~tmp~4); 795#L627-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 744#L637 assume !(0 != test_~tmp___0~0); 745#L637-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 748#L647 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 813#L655-2 assume !(0 != ~pumpRunning~0); 818#L685 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 824#L743 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 726#L717-1 assume !(0 != ~pumpRunning~0); 723#L692 havoc __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 740#L92-1 __utac_acc__Specification3_spec__1_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 789#L934 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 790#L124 __utac_acc__Specification3_spec__1_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret80;havoc __utac_acc__Specification3_spec__1_#t~ret80; 728#L940 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 729#L940-1 [2020-11-29 19:53:37,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:37,037 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:53:37,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:37,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866194986] [2020-11-29 19:53:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:37,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:37,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:37,165 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:37,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:37,166 INFO L82 PathProgramCache]: Analyzing trace with hash -897468676, now seen corresponding path program 1 times [2020-11-29 19:53:37,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:37,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731800754] [2020-11-29 19:53:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:37,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:37,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:37,210 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:37,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:37,211 INFO L82 PathProgramCache]: Analyzing trace with hash -488313834, now seen corresponding path program 1 times [2020-11-29 19:53:37,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:37,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290361345] [2020-11-29 19:53:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:37,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:37,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:37,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:54:55,610 WARN L193 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:55:57,701 WARN L193 SmtUtils]: Spent 1.03 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:55:57,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:55:57 BoogieIcfgContainer [2020-11-29 19:55:57,883 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:55:57,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:55:57,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:55:57,885 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:55:57,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:35" (3/4) ... [2020-11-29 19:55:57,888 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:55:57,942 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0d91aef9-c8d8-463a-8996-0966514fe20a/bin/uautomizer/witness.graphml [2020-11-29 19:55:57,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:55:57,944 INFO L168 Benchmark]: Toolchain (without parser) took 144601.79 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 74.0 MB in the beginning and 68.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:57,945 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 52.2 MB in the beginning and 52.2 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:55:57,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.74 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 72.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:57,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.25 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 68.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:57,947 INFO L168 Benchmark]: Boogie Preprocessor took 71.70 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 66.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:57,948 INFO L168 Benchmark]: RCFGBuilder took 1105.10 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 54.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:57,949 INFO L168 Benchmark]: BuchiAutomizer took 142602.75 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 54.3 MB in the beginning and 70.7 MB in the end (delta: -16.4 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:57,950 INFO L168 Benchmark]: Witness Printer took 58.52 ms. Allocated memory is still 127.9 MB. Free memory was 70.7 MB in the beginning and 68.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:57,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 52.2 MB in the beginning and 52.2 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 669.74 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 72.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.25 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 68.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.70 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 66.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1105.10 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 54.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 142602.75 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 54.3 MB in the beginning and 70.7 MB in the end (delta: -16.4 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. * Witness Printer took 58.52 ms. Allocated memory is still 127.9 MB. Free memory was 70.7 MB in the beginning and 68.6 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 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 196 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 142.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 141.9s. 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, 159 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 196 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 349 SDtfs, 686 SDslu, 604 SDs, 0 SdLazy, 82 SolverSat, 24 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: 617]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2651} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=2654, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52dca3e=0, NULL=2651, NULL=2663, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=2661, NULL=2672, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a98c9a4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70ac7ea2=0, NULL=2666, methaneLevelCritical=0, NULL=2655, NULL=2660, retValue_acc=1, tmp=0, NULL=2677, NULL=0, NULL=0, NULL=2665, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45a5ede2=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=2675, NULL=2679, cleanupTimeShifts=4, NULL=2670, NULL=2671, NULL=2652, tmp=0, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=2653, NULL=0, NULL=2668, tmp___0=0, NULL=0, NULL=2659, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=2664, \result=0, NULL=2674, NULL=0, NULL=2676, NULL=0, NULL=0, NULL=2662, NULL=0, NULL=0, NULL=2658, NULL=0, tmp___2=74, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@558225d0=0, \result=0, NULL=2657, NULL=2669, NULL=2673, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e4e7671=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3aadcbe3=74, tmp___1=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@338d0759=0, tmp=0, NULL=0, NULL=0, NULL=2656, NULL=2678, NULL=2667, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5db3b8e3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5eafb35d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L138] int cleanupTimeShifts = 4; [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int pumpRunning = 0; [L678] int systemActive = 1; [L217] int retValue_acc ; [L218] int tmp ; [L916] int retValue_acc ; [L919] retValue_acc = 1 [L920] return (retValue_acc); [L224] tmp = valid_product() [L226] COND TRUE \read(tmp) [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 Loop: [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp)) [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L876] systemActive = 1 [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L714] int tmp ; [L717] COND FALSE !(\read(pumpRunning)) [L926] int tmp ; [L927] int tmp___0 ; [L928] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L932] tmp = isMethaneLevelCritical() [L934] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L938] tmp___0 = getWaterLevel() [L940] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...