./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.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_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/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 e293e64b1cdccf6f7dd8e0ea93ea165f8311c2d3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:34:03,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:34:03,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:34:03,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:34:03,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:34:03,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:34:03,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:34:03,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:34:03,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:34:03,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:34:03,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:34:03,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:34:03,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:34:03,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:34:03,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:34:03,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:34:03,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:34:03,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:34:03,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:34:03,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:34:03,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:34:03,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:34:03,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:34:03,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:34:03,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:34:03,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:34:03,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:34:03,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:34:03,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:34:03,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:34:03,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:34:03,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:34:03,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:34:03,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:34:03,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:34:03,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:34:03,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:34:03,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:34:03,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:34:03,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:34:03,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:34:03,748 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:34:03,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:34:03,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:34:03,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:34:03,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:34:03,798 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:34:03,798 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:34:03,799 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:34:03,799 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:34:03,799 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:34:03,800 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:34:03,800 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:34:03,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:34:03,800 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:34:03,801 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:34:03,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:34:03,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:34:03,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:34:03,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:34:03,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:34:03,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:34:03,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:34:03,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:34:03,803 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:34:03,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:34:03,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:34:03,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:34:03,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:34:03,804 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:34:03,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:34:03,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:34:03,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:34:03,806 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:34:03,807 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:34:03,807 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_9f729e76-70cb-43ca-84e8-9185d28273cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e293e64b1cdccf6f7dd8e0ea93ea165f8311c2d3 [2020-11-29 18:34:04,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:34:04,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:34:04,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:34:04,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:34:04,192 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:34:04,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2020-11-29 18:34:04,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/data/6c9693197/dd5eb68b40644722992fb736f3682acd/FLAG74d5f4297 [2020-11-29 18:34:04,855 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:34:04,855 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2020-11-29 18:34:04,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/data/6c9693197/dd5eb68b40644722992fb736f3682acd/FLAG74d5f4297 [2020-11-29 18:34:05,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/data/6c9693197/dd5eb68b40644722992fb736f3682acd [2020-11-29 18:34:05,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:34:05,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:34:05,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:34:05,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:34:05,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:34:05,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:05,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d434a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05, skipping insertion in model container [2020-11-29 18:34:05,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:05,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:34:05,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:34:05,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:34:05,657 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:34:05,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:34:05,855 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:34:05,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05 WrapperNode [2020-11-29 18:34:05,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:34:05,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:34:05,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:34:05,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:34:05,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:05,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:05,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:34:05,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:34:05,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:34:05,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:34:05,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:05,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:05,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:06,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:06,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:06,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:06,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... [2020-11-29 18:34:06,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:34:06,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:34:06,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:34:06,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:34:06,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/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 18:34:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:34:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:34:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:34:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:34:07,166 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:34:07,168 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-11-29 18:34:07,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:34:07 BoogieIcfgContainer [2020-11-29 18:34:07,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:34:07,172 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:34:07,172 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:34:07,178 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:34:07,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:34:07,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:34:05" (1/3) ... [2020-11-29 18:34:07,180 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f0f5213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:34:07, skipping insertion in model container [2020-11-29 18:34:07,181 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:34:07,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:34:05" (2/3) ... [2020-11-29 18:34:07,181 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f0f5213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:34:07, skipping insertion in model container [2020-11-29 18:34:07,182 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:34:07,182 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:34:07" (3/3) ... [2020-11-29 18:34:07,184 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2020-11-29 18:34:07,263 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:34:07,264 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:34:07,264 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:34:07,264 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:34:07,264 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:34:07,264 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:34:07,265 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:34:07,265 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:34:07,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-29 18:34:07,311 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 18:34:07,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:34:07,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:34:07,321 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:34:07,321 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:34:07,322 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:34:07,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-29 18:34:07,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 18:34:07,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:34:07,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:34:07,331 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:34:07,331 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:34:07,337 INFO L794 eck$LassoCheckResult]: Stem: 33#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);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(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 12#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 5#L899true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 29#L907true main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 14#L819true assume 0 != main_~tmp~6; 3#L793true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 46#L849-1true [2020-11-29 18:34:07,338 INFO L796 eck$LassoCheckResult]: Loop: 46#L849-1true assume !false; 26#L231true assume test_~splverifierCounter~0 < 4; 55#L232true test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 69#L240true assume !(0 != test_~tmp~2); 67#L240-1true test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 50#L250true assume !(0 != test_~tmp___0~0); 66#L250-1true test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 48#L260true assume 0 != test_~tmp___2~0; 75#L266-1true assume !(0 != ~pumpRunning~0); 24#L59true assume !(0 != ~systemActive~0); 41#L66true havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;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; 70#L697-1true __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 73#L843true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 46#L849-1true [2020-11-29 18:34:07,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:07,345 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 18:34:07,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:07,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391687001] [2020-11-29 18:34:07,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:07,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:07,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:07,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:34:07,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:07,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310530, now seen corresponding path program 1 times [2020-11-29 18:34:07,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:07,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125811574] [2020-11-29 18:34:07,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:07,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:07,891 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:07,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:34:07,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:07,900 INFO L82 PathProgramCache]: Analyzing trace with hash 40968408, now seen corresponding path program 1 times [2020-11-29 18:34:07,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:07,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114703003] [2020-11-29 18:34:07,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:34:08,145 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 18:34:08,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114703003] [2020-11-29 18:34:08,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:34:08,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:34:08,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093549036] [2020-11-29 18:34:08,324 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-11-29 18:34:08,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:34:08,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:34:08,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:34:08,357 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 6 states. [2020-11-29 18:34:08,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:34:08,809 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2020-11-29 18:34:08,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:34:08,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 273 transitions. [2020-11-29 18:34:08,834 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 125 [2020-11-29 18:34:08,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 177 states and 252 transitions. [2020-11-29 18:34:08,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-11-29 18:34:08,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-11-29 18:34:08,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 252 transitions. [2020-11-29 18:34:08,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:34:08,871 INFO L691 BuchiCegarLoop]: Abstraction has 177 states and 252 transitions. [2020-11-29 18:34:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 252 transitions. [2020-11-29 18:34:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 114. [2020-11-29 18:34:08,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-29 18:34:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2020-11-29 18:34:08,934 INFO L714 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-11-29 18:34:08,934 INFO L594 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-11-29 18:34:08,934 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:34:08,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2020-11-29 18:34:08,937 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2020-11-29 18:34:08,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:34:08,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:34:08,939 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:34:08,939 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:34:08,939 INFO L794 eck$LassoCheckResult]: Stem: 337#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);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(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 312#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 298#L899 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 299#L907 main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 316#L819 assume 0 != main_~tmp~6; 293#L793 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 294#L849-1 [2020-11-29 18:34:08,940 INFO L796 eck$LassoCheckResult]: Loop: 294#L849-1 assume !false; 328#L231 assume test_~splverifierCounter~0 < 4; 329#L232 test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 353#L240 assume !(0 != test_~tmp~2); 310#L240-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 349#L250 assume !(0 != test_~tmp___0~0); 332#L250-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 347#L260 assume 0 != test_~tmp___2~0; 315#L266-1 assume !(0 != ~pumpRunning~0); 324#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 300#L91 assume !(0 != ~pumpRunning~0); 302#L66 havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;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; 345#L697-1 __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 358#L843 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 294#L849-1 [2020-11-29 18:34:08,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:08,941 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 18:34:08,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:08,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596637732] [2020-11-29 18:34:08,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:09,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:09,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:09,171 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:34:09,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:09,172 INFO L82 PathProgramCache]: Analyzing trace with hash -353546770, now seen corresponding path program 1 times [2020-11-29 18:34:09,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:09,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970341207] [2020-11-29 18:34:09,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:09,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:09,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:09,190 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:34:09,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:09,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492756, now seen corresponding path program 1 times [2020-11-29 18:34:09,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:09,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128355192] [2020-11-29 18:34:09,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:34:09,329 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 18:34:09,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128355192] [2020-11-29 18:34:09,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:34:09,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:34:09,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561113766] [2020-11-29 18:34:09,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:34:09,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:34:09,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:34:09,450 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. cyclomatic complexity: 51 Second operand 5 states. [2020-11-29 18:34:09,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:34:09,942 INFO L93 Difference]: Finished difference Result 367 states and 533 transitions. [2020-11-29 18:34:09,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:34:09,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 533 transitions. [2020-11-29 18:34:09,950 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 271 [2020-11-29 18:34:09,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 533 transitions. [2020-11-29 18:34:09,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2020-11-29 18:34:09,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2020-11-29 18:34:09,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 533 transitions. [2020-11-29 18:34:09,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:34:09,974 INFO L691 BuchiCegarLoop]: Abstraction has 367 states and 533 transitions. [2020-11-29 18:34:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 533 transitions. [2020-11-29 18:34:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 222. [2020-11-29 18:34:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-11-29 18:34:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 310 transitions. [2020-11-29 18:34:10,005 INFO L714 BuchiCegarLoop]: Abstraction has 222 states and 310 transitions. [2020-11-29 18:34:10,005 INFO L594 BuchiCegarLoop]: Abstraction has 222 states and 310 transitions. [2020-11-29 18:34:10,006 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:34:10,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 310 transitions. [2020-11-29 18:34:10,010 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 160 [2020-11-29 18:34:10,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:34:10,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:34:10,012 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:34:10,012 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:34:10,013 INFO L794 eck$LassoCheckResult]: Stem: 843#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);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(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 811#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 797#L899 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 798#L907 main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 815#L819 assume 0 != main_~tmp~6; 795#L793 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 796#L849-1 [2020-11-29 18:34:10,013 INFO L796 eck$LassoCheckResult]: Loop: 796#L849-1 assume !false; 992#L231 assume test_~splverifierCounter~0 < 4; 991#L232 test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 990#L240 assume !(0 != test_~tmp~2); 988#L240-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 987#L250 assume !(0 != test_~tmp___0~0); 985#L250-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 983#L260 assume 0 != test_~tmp___2~0; 960#L266-1 assume !(0 != ~pumpRunning~0); 999#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 799#L91 assume !(0 != ~pumpRunning~0); 801#L66 havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;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; 881#L697-1 __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 882#L843 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);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; 863#L729 __utac_acc__Specification3_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 864#L849 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 796#L849-1 [2020-11-29 18:34:10,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:10,015 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 18:34:10,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:10,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237423535] [2020-11-29 18:34:10,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:10,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:10,177 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:10,198 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:34:10,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:10,199 INFO L82 PathProgramCache]: Analyzing trace with hash -456023614, now seen corresponding path program 1 times [2020-11-29 18:34:10,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:10,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457056488] [2020-11-29 18:34:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:10,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:10,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:10,215 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:34:10,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:34:10,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1828298392, now seen corresponding path program 1 times [2020-11-29 18:34:10,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:34:10,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291250346] [2020-11-29 18:34:10,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:34:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:10,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:34:10,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:34:10,349 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:35:43,681 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 18:36:56,231 WARN L193 SmtUtils]: Spent 1.21 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 18:36:56,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:36:56 BoogieIcfgContainer [2020-11-29 18:36:56,615 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:36:56,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:36:56,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:36:56,616 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:36:56,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:34:07" (3/4) ... [2020-11-29 18:36:56,619 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:36:56,682 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9f729e76-70cb-43ca-84e8-9185d28273cf/bin/uautomizer/witness.graphml [2020-11-29 18:36:56,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:36:56,686 INFO L168 Benchmark]: Toolchain (without parser) took 171513.20 ms. Allocated memory was 83.9 MB in the beginning and 148.9 MB in the end (delta: 65.0 MB). Free memory was 50.4 MB in the beginning and 48.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:36:56,688 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 56.3 MB in the beginning and 56.2 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:36:56,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.57 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 50.1 MB in the beginning and 68.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:36:56,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.21 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 65.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:36:56,691 INFO L168 Benchmark]: Boogie Preprocessor took 94.11 ms. Allocated memory is still 100.7 MB. Free memory was 65.9 MB in the beginning and 63.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:36:56,692 INFO L168 Benchmark]: RCFGBuilder took 1118.85 ms. Allocated memory is still 100.7 MB. Free memory was 63.5 MB in the beginning and 66.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:36:56,693 INFO L168 Benchmark]: BuchiAutomizer took 169443.01 ms. Allocated memory was 100.7 MB in the beginning and 148.9 MB in the end (delta: 48.2 MB). Free memory was 66.1 MB in the beginning and 51.9 MB in the end (delta: 14.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:36:56,694 INFO L168 Benchmark]: Witness Printer took 68.58 ms. Allocated memory is still 148.9 MB. Free memory was 51.9 MB in the beginning and 48.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:36:56,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 56.3 MB in the beginning and 56.2 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 680.57 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 50.1 MB in the beginning and 68.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.21 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 65.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.11 ms. Allocated memory is still 100.7 MB. Free memory was 65.9 MB in the beginning and 63.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1118.85 ms. Allocated memory is still 100.7 MB. Free memory was 63.5 MB in the beginning and 66.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 169443.01 ms. Allocated memory was 100.7 MB in the beginning and 148.9 MB in the end (delta: 48.2 MB). Free memory was 66.1 MB in the beginning and 51.9 MB in the end (delta: 14.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 16.1 GB. * Witness Printer took 68.58 ms. Allocated memory is still 148.9 MB. Free memory was 51.9 MB in the beginning and 48.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 169.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 168.0s. Construction of modules took 0.5s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 208 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 222 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 221 SDtfs, 705 SDslu, 919 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 230]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31109} State at position 1 is {NULL=31128, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60f9b8ad=0, NULL=31109, NULL=0, NULL=0, retValue_acc=0, NULL=31118, NULL=31114, methaneLevelCritical=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@381dc38e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@260ec105=0, NULL=0, NULL=0, NULL=31121, tmp___1=0, NULL=31132, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=31115, NULL=31126, NULL=31116, NULL=31110, tmp___0=1, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=31117, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4516e00e=0, NULL=0, retValue_acc=0, tmp___0=0, NULL=0, NULL=0, NULL=31135, NULL=0, NULL=0, NULL=0, NULL=31130, \result=1, head=0, pumpRunning=0, NULL=31113, NULL=31127, \result=0, NULL=31125, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73f348ef=0, NULL=31123, NULL=31119, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f91900d=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60c7f60c=0, NULL=0, NULL=31136, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f9a6808=0, NULL=0, tmp=1, NULL=0, NULL=31124, retValue_acc=1, NULL=31120, NULL=0, NULL=0, NULL=31133, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2561a961=0, retValue_acc=1, tmp___2=66, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=31131, NULL=31137, tmp=0, NULL=31134, tmp___1=0, head=0, NULL=31112, NULL=0, NULL=0, NULL=31122, NULL=31111, NULL=0, NULL=31129} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L456] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int waterLevel = 1; [L655] int methaneLevelCritical = 0; [L734] int cleanupTimeShifts = 4; [L810] int retValue_acc ; [L811] int tmp ; [L903] int retValue_acc ; [L906] retValue_acc = 1 [L907] return (retValue_acc); [L817] tmp = valid_product() [L819] COND TRUE \read(tmp) [L221] int splverifierCounter ; [L222] int tmp ; [L223] int tmp___0 ; [L224] int tmp___1 ; [L225] int tmp___2 ; [L228] splverifierCounter = 0 Loop: [L230] COND TRUE 1 [L232] COND TRUE splverifierCounter < 4 [L238] tmp = __VERIFIER_nondet_int() [L240] COND FALSE !(\read(tmp)) [L248] tmp___0 = __VERIFIER_nondet_int() [L250] COND FALSE !(\read(tmp___0)) [L258] tmp___2 = __VERIFIER_nondet_int() [L260] COND TRUE \read(tmp___2) [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L88] int tmp ; [L91] COND FALSE !(\read(pumpRunning)) [L835] int tmp ; [L836] int tmp___0 ; [L837] int tmp___1 ; [L693] int retValue_acc ; [L696] retValue_acc = methaneLevelCritical [L697] return (retValue_acc); [L841] tmp = isMethaneLevelCritical() [L843] COND FALSE !(\read(tmp)) [L725] int retValue_acc ; [L728] retValue_acc = waterLevel [L729] return (retValue_acc); [L847] tmp___0 = getWaterLevel() [L849] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...