./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product08.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_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/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 a22bfa4730ddab21776840b89a04f286cc468614 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:31:32,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:31:32,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:31:32,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:31:32,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:31:32,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:31:32,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:31:32,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:31:32,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:31:32,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:31:32,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:31:32,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:31:32,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:31:32,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:31:32,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:31:32,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:31:32,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:31:32,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:31:32,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:31:32,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:31:32,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:31:32,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:31:32,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:31:32,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:31:32,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:31:32,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:31:32,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:31:32,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:31:32,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:31:32,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:31:32,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:31:32,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:31:32,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:31:32,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:31:32,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:31:32,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:31:32,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:31:32,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:31:32,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:31:32,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:31:32,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:31:32,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:31:32,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:31:32,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:31:32,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:31:32,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:31:32,992 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:31:32,992 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:31:32,993 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:31:32,993 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:31:32,993 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:31:32,994 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:31:32,994 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:31:32,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:31:32,995 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:31:32,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:31:32,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:31:32,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:31:32,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:31:32,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:31:32,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:31:32,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:31:32,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:31:32,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:31:32,999 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:31:32,999 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:31:33,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:31:33,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:31:33,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:31:33,001 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:31:33,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:31:33,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:31:33,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:31:33,002 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:31:33,003 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:31:33,004 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_8a1097d5-8657-4fb4-ba14-28394a724532/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a22bfa4730ddab21776840b89a04f286cc468614 [2020-11-29 23:31:33,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:31:33,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:31:33,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:31:33,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:31:33,269 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:31:33,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c [2020-11-29 23:31:33,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/data/24a120a81/07bf8b81ad8941a592b87d379555b495/FLAGd53fe1167 [2020-11-29 23:31:33,906 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:31:33,907 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c [2020-11-29 23:31:33,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/data/24a120a81/07bf8b81ad8941a592b87d379555b495/FLAGd53fe1167 [2020-11-29 23:31:34,212 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/data/24a120a81/07bf8b81ad8941a592b87d379555b495 [2020-11-29 23:31:34,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:31:34,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:31:34,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:31:34,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:31:34,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:31:34,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193afa6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34, skipping insertion in model container [2020-11-29 23:31:34,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:31:34,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:31:34,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:31:34,581 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:31:34,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:31:34,693 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:31:34,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34 WrapperNode [2020-11-29 23:31:34,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:31:34,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:31:34,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:31:34,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:31:34,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:31:34,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:31:34,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:31:34,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:31:34,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... [2020-11-29 23:31:34,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:31:34,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:31:34,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:31:34,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:31:34,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:31:34,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:31:34,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:31:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:31:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:31:36,071 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:31:36,072 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-29 23:31:36,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:31:36 BoogieIcfgContainer [2020-11-29 23:31:36,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:31:36,075 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:31:36,075 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:31:36,078 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:31:36,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:31:36,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:31:34" (1/3) ... [2020-11-29 23:31:36,081 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54227ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:31:36, skipping insertion in model container [2020-11-29 23:31:36,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:31:36,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:34" (2/3) ... [2020-11-29 23:31:36,081 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54227ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:31:36, skipping insertion in model container [2020-11-29 23:31:36,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:31:36,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:31:36" (3/3) ... [2020-11-29 23:31:36,083 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product08.cil.c [2020-11-29 23:31:36,127 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:31:36,128 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:31:36,128 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:31:36,128 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:31:36,128 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:31:36,128 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:31:36,128 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:31:36,128 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:31:36,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-29 23:31:36,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-29 23:31:36,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:31:36,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:31:36,173 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:36,174 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:36,174 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:31:36,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-29 23:31:36,182 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-29 23:31:36,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:31:36,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:31:36,183 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:36,183 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:36,187 INFO L794 eck$LassoCheckResult]: Stem: 25#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 8#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 21#L629true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 26#L637true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 67#L134true assume 0 != main_~tmp~0; 71#L105true ~methAndRunningLastTime~0 := 0; 50#L649true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 51#L660-1true [2020-11-29 23:31:36,188 INFO L796 eck$LassoCheckResult]: Loop: 51#L660-1true assume !false; 20#L695true assume test_~splverifierCounter~0 < 4; 38#L696true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 70#L704true assume !(0 != test_~tmp~5); 72#L704-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 46#L714true assume !(0 != test_~tmp___0~1); 23#L714-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 9#L724true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 33#L732-1true assume !(0 != ~pumpRunning~0); 58#L762true assume !(0 != ~systemActive~0); 44#L769true havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 56#L561-1true __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 48#L660true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 51#L660-1true [2020-11-29 23:31:36,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:36,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 23:31:36,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:36,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623687103] [2020-11-29 23:31:36,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:36,460 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:36,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:36,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:31:36,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:36,633 INFO L82 PathProgramCache]: Analyzing trace with hash 11926806, now seen corresponding path program 1 times [2020-11-29 23:31:36,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:36,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854888593] [2020-11-29 23:31:36,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:31:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:31:36,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854888593] [2020-11-29 23:31:36,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:31:36,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:31:36,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905476247] [2020-11-29 23:31:36,715 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:31:36,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:31:36,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:31:36,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:31:36,735 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states. [2020-11-29 23:31:36,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:31:36,822 INFO L93 Difference]: Finished difference Result 137 states and 193 transitions. [2020-11-29 23:31:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:31:36,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 193 transitions. [2020-11-29 23:31:36,837 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2020-11-29 23:31:36,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 123 states and 178 transitions. [2020-11-29 23:31:36,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2020-11-29 23:31:36,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2020-11-29 23:31:36,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 178 transitions. [2020-11-29 23:31:36,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:31:36,856 INFO L691 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2020-11-29 23:31:36,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 178 transitions. [2020-11-29 23:31:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2020-11-29 23:31:36,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-29 23:31:36,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 175 transitions. [2020-11-29 23:31:36,915 INFO L714 BuchiCegarLoop]: Abstraction has 121 states and 175 transitions. [2020-11-29 23:31:36,915 INFO L594 BuchiCegarLoop]: Abstraction has 121 states and 175 transitions. [2020-11-29 23:31:36,916 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:31:36,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 121 states and 175 transitions. [2020-11-29 23:31:36,922 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2020-11-29 23:31:36,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:31:36,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:31:36,927 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:36,927 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:36,928 INFO L794 eck$LassoCheckResult]: Stem: 254#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 231#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 232#L629 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 249#L637 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 255#L134 assume 0 != main_~tmp~0; 289#L105 ~methAndRunningLastTime~0 := 0; 277#L649 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 226#L660-1 [2020-11-29 23:31:36,928 INFO L796 eck$LassoCheckResult]: Loop: 226#L660-1 assume !false; 246#L695 assume test_~splverifierCounter~0 < 4; 247#L696 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 269#L704 assume !(0 != test_~tmp~5); 287#L704-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 273#L714 assume !(0 != test_~tmp___0~1); 222#L714-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 233#L724 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 235#L732-1 assume !(0 != ~pumpRunning~0); 262#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 264#L794 assume !(0 != ~pumpRunning~0); 253#L769 havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 272#L561-1 __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 274#L660 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 226#L660-1 [2020-11-29 23:31:36,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:36,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 23:31:36,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:36,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495599562] [2020-11-29 23:31:36,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:37,017 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:37,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:37,113 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:31:37,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:37,114 INFO L82 PathProgramCache]: Analyzing trace with hash 349202467, now seen corresponding path program 1 times [2020-11-29 23:31:37,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:37,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409995051] [2020-11-29 23:31:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:37,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:37,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:37,168 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:31:37,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:37,174 INFO L82 PathProgramCache]: Analyzing trace with hash 411590377, now seen corresponding path program 1 times [2020-11-29 23:31:37,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:37,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470997747] [2020-11-29 23:31:37,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:37,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:37,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:37,352 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:32:51,565 WARN L193 SmtUtils]: Spent 1.23 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 23:33:43,508 WARN L193 SmtUtils]: Spent 51.90 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 23:33:43,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:33:43 BoogieIcfgContainer [2020-11-29 23:33:43,725 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:33:43,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:33:43,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:33:43,726 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:33:43,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:31:36" (3/4) ... [2020-11-29 23:33:43,730 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:33:43,790 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8a1097d5-8657-4fb4-ba14-28394a724532/bin/uautomizer/witness.graphml [2020-11-29 23:33:43,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:33:43,792 INFO L168 Benchmark]: Toolchain (without parser) took 129574.81 ms. Allocated memory was 88.1 MB in the beginning and 134.2 MB in the end (delta: 46.1 MB). Free memory was 55.9 MB in the beginning and 39.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:33:43,792 INFO L168 Benchmark]: CDTParser took 1.37 ms. Allocated memory is still 88.1 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:33:43,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.82 ms. Allocated memory is still 88.1 MB. Free memory was 55.6 MB in the beginning and 55.9 MB in the end (delta: -320.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:33:43,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.39 ms. Allocated memory is still 88.1 MB. Free memory was 55.9 MB in the beginning and 53.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:33:43,795 INFO L168 Benchmark]: Boogie Preprocessor took 62.30 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 50.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:33:43,796 INFO L168 Benchmark]: RCFGBuilder took 1233.75 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 53.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:33:43,796 INFO L168 Benchmark]: BuchiAutomizer took 127650.76 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 53.9 MB in the beginning and 41.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:33:43,797 INFO L168 Benchmark]: Witness Printer took 64.18 ms. Allocated memory is still 134.2 MB. Free memory was 41.1 MB in the beginning and 39.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:33:43,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37 ms. Allocated memory is still 88.1 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 474.82 ms. Allocated memory is still 88.1 MB. Free memory was 55.6 MB in the beginning and 55.9 MB in the end (delta: -320.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.39 ms. Allocated memory is still 88.1 MB. Free memory was 55.9 MB in the beginning and 53.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.30 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 50.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1233.75 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 53.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 127650.76 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 53.9 MB in the beginning and 41.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB. * Witness Printer took 64.18 ms. Allocated memory is still 134.2 MB. Free memory was 41.1 MB in the beginning and 39.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 121 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 127.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 121 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 99 SDtfs, 95 SDslu, 86 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 694]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=1, NULL=8889, NULL=0, NULL=8895, NULL=0, NULL=8888, NULL=8877, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ac920fb=0, NULL=8885, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24af015b=0, methaneLevelCritical=0, NULL=8879, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=8876, NULL=0, NULL=0, NULL=8875, NULL=8890, NULL=8886, cleanupTimeShifts=4, NULL=8872, NULL=8880, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=8896, NULL=0, NULL=0, retValue_acc=0, NULL=8884, NULL=0, NULL=0, NULL=8869, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=8892, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1099ffdc=0, NULL=8878, NULL=8887, tmp___0=0, NULL=8882, retValue_acc=1, NULL=0, NULL=0, NULL=8883, NULL=0, NULL=8870, tmp___2=70, NULL=0, NULL=8891, tmp___0=0, NULL=8873, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=8894, NULL=8871, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b5c97c0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4afe1ea3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c3c5ed9=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e39366=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9cc8d40=0, head=0, NULL=0, NULL=0, tmp=0, NULL=8874, NULL=0, NULL=0, NULL=0, NULL=8893, tmp=0, NULL=0, NULL=8881} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L317] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int waterLevel = 1; [L519] int methaneLevelCritical = 0; [L643] int methAndRunningLastTime ; [L755] int pumpRunning = 0; [L756] int systemActive = 1; [L125] int retValue_acc ; [L126] int tmp ; [L633] int retValue_acc ; [L636] retValue_acc = 1 [L637] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L648] methAndRunningLastTime = 0 [L685] int splverifierCounter ; [L686] int tmp ; [L687] int tmp___0 ; [L688] int tmp___1 ; [L689] int tmp___2 ; [L692] splverifierCounter = 0 Loop: [L694] COND TRUE 1 [L696] COND TRUE splverifierCounter < 4 [L702] tmp = __VERIFIER_nondet_int() [L704] COND FALSE !(\read(tmp)) [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND TRUE \read(tmp___2) [L906] systemActive = 1 [L762] COND FALSE !(\read(pumpRunning)) [L769] COND TRUE \read(systemActive) [L791] int tmp ; [L794] COND FALSE !(\read(pumpRunning)) [L653] int tmp ; [L654] int tmp___0 ; [L557] int retValue_acc ; [L560] retValue_acc = methaneLevelCritical [L561] return (retValue_acc); [L658] tmp = isMethaneLevelCritical() [L660] COND FALSE !(\read(tmp)) [L676] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...