./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product31.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_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/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 465164c9d6bff671f00f1c9497719b8ddd91e991 ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:57:46,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:57:46,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:57:46,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:57:46,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:57:46,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:57:46,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:57:46,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:57:46,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:57:46,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:57:46,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:57:46,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:57:46,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:57:46,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:57:46,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:57:46,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:57:47,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:57:47,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:57:47,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:57:47,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:57:47,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:57:47,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:57:47,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:57:47,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:57:47,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:57:47,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:57:47,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:57:47,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:57:47,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:57:47,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:57:47,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:57:47,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:57:47,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:57:47,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:57:47,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:57:47,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:57:47,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:57:47,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:57:47,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:57:47,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:57:47,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:57:47,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:57:47,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:57:47,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:57:47,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:57:47,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:57:47,128 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:57:47,128 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:57:47,128 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:57:47,128 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:57:47,129 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:57:47,129 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:57:47,131 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:57:47,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:57:47,131 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:57:47,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:57:47,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:57:47,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:57:47,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:57:47,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:57:47,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:57:47,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:57:47,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:57:47,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:57:47,134 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:57:47,134 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:57:47,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:57:47,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:57:47,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:57:47,136 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:57:47,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:57:47,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:57:47,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:57:47,138 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:57:47,140 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:57:47,140 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_108a99bb-c26a-4acc-a064-3bcc7f367adc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 465164c9d6bff671f00f1c9497719b8ddd91e991 [2020-11-29 19:57:47,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:57:47,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:57:47,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:57:47,554 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:57:47,555 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:57:47,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2020-11-29 19:57:47,653 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/data/bae08bf4b/9399f9a54105462eb6b156810e6ef0a9/FLAG686d84f33 [2020-11-29 19:57:48,427 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:57:48,428 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2020-11-29 19:57:48,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/data/bae08bf4b/9399f9a54105462eb6b156810e6ef0a9/FLAG686d84f33 [2020-11-29 19:57:48,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/data/bae08bf4b/9399f9a54105462eb6b156810e6ef0a9 [2020-11-29 19:57:48,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:57:48,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:57:48,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:57:48,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:57:48,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:57:48,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:57:48" (1/1) ... [2020-11-29 19:57:48,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58986b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:48, skipping insertion in model container [2020-11-29 19:57:48,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:57:48" (1/1) ... [2020-11-29 19:57:48,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:57:48,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:57:49,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:57:49,142 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:57:49,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:57:49,363 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:57:49,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49 WrapperNode [2020-11-29 19:57:49,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:57:49,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:57:49,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:57:49,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:57:49,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:57:49,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:57:49,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:57:49,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:57:49,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... [2020-11-29 19:57:49,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:57:49,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:57:49,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:57:49,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:57:49,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:57:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:57:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:57:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:57:49,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:57:51,098 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:57:51,101 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-29 19:57:51,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:57:51 BoogieIcfgContainer [2020-11-29 19:57:51,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:57:51,106 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:57:51,106 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:57:51,111 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:57:51,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:57:51,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:57:48" (1/3) ... [2020-11-29 19:57:51,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@663cf30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:57:51, skipping insertion in model container [2020-11-29 19:57:51,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:57:51,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:57:49" (2/3) ... [2020-11-29 19:57:51,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@663cf30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:57:51, skipping insertion in model container [2020-11-29 19:57:51,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:57:51,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:57:51" (3/3) ... [2020-11-29 19:57:51,119 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product31.cil.c [2020-11-29 19:57:51,189 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:57:51,190 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:57:51,190 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:57:51,190 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:57:51,190 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:57:51,190 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:57:51,190 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:57:51,190 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:57:51,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 19:57:51,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 19:57:51,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:57:51,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:57:51,271 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:57:51,272 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:57:51,272 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:57:51,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 19:57:51,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 19:57:51,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:57:51,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:57:51,283 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:57:51,284 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:57:51,291 INFO L794 eck$LassoCheckResult]: Stem: 91#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 42#L367true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 46#L375true main_#t~ret70 := valid_product_#res;main_~tmp~9 := main_#t~ret70;havoc main_#t~ret70; 31#L868true assume 0 != main_~tmp~9; 6#L844true ~methAndRunningLastTime~0 := 0; 54#L752true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 55#L763-1true [2020-11-29 19:57:51,292 INFO L796 eck$LassoCheckResult]: Loop: 55#L763-1true assume !false; 57#L58true assume test_~splverifierCounter~0 < 4; 23#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 39#L67true assume !(0 != test_~tmp~0); 37#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 96#L77true assume !(0 != test_~tmp___0~0); 94#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 17#L87true assume 0 != test_~tmp___2~0; 99#L93-1true assume !(0 != ~pumpRunning~0); 26#L139true assume !(0 != ~systemActive~0); 61#L146true havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 27#L926-1true __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 53#L763true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 55#L763-1true [2020-11-29 19:57:51,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:51,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:57:51,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:51,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023559454] [2020-11-29 19:57:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:51,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:51,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:51,810 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:57:51,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:51,813 INFO L82 PathProgramCache]: Analyzing trace with hash 12573269, now seen corresponding path program 1 times [2020-11-29 19:57:51,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:51,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97868461] [2020-11-29 19:57:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:51,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:51,831 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:51,839 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:57:51,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:51,842 INFO L82 PathProgramCache]: Analyzing trace with hash 845869775, now seen corresponding path program 1 times [2020-11-29 19:57:51,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:51,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638901750] [2020-11-29 19:57:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:57:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:57:52,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638901750] [2020-11-29 19:57:52,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:57:52,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:57:52,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696992866] [2020-11-29 19:57:52,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:57:52,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:57:52,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:57:52,229 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2020-11-29 19:57:52,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:57:52,772 INFO L93 Difference]: Finished difference Result 262 states and 373 transitions. [2020-11-29 19:57:52,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:57:52,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 373 transitions. [2020-11-29 19:57:52,799 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2020-11-29 19:57:52,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 241 states and 352 transitions. [2020-11-29 19:57:52,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2020-11-29 19:57:52,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2020-11-29 19:57:52,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 352 transitions. [2020-11-29 19:57:52,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:57:52,828 INFO L691 BuchiCegarLoop]: Abstraction has 241 states and 352 transitions. [2020-11-29 19:57:52,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 352 transitions. [2020-11-29 19:57:52,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 145. [2020-11-29 19:57:52,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-11-29 19:57:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2020-11-29 19:57:52,903 INFO L714 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2020-11-29 19:57:52,903 INFO L594 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2020-11-29 19:57:52,904 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:57:52,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 211 transitions. [2020-11-29 19:57:52,910 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2020-11-29 19:57:52,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:57:52,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:57:52,913 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:57:52,913 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:57:52,913 INFO L794 eck$LassoCheckResult]: Stem: 486#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);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~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 408#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 409#L367 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 455#L375 main_#t~ret70 := valid_product_#res;main_~tmp~9 := main_#t~ret70;havoc main_#t~ret70; 439#L868 assume 0 != main_~tmp~9; 396#L844 ~methAndRunningLastTime~0 := 0; 397#L752 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 406#L763-1 [2020-11-29 19:57:52,915 INFO L796 eck$LassoCheckResult]: Loop: 406#L763-1 assume !false; 465#L58 assume test_~splverifierCounter~0 < 4; 427#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 428#L67 assume !(0 != test_~tmp~0); 448#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 449#L77 assume !(0 != test_~tmp___0~0); 488#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 416#L87 assume 0 != test_~tmp___2~0; 418#L93-1 assume !(0 != ~pumpRunning~0); 432#L139 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 393#L197 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 395#L171-1 assume !(0 != ~pumpRunning~0); 392#L146 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 433#L926-1 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 434#L763 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 406#L763-1 [2020-11-29 19:57:52,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:52,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:57:52,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:52,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455408702] [2020-11-29 19:57:52,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:53,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:53,130 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:53,168 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:57:53,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:53,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1343596423, now seen corresponding path program 1 times [2020-11-29 19:57:53,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:53,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119806138] [2020-11-29 19:57:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:53,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:53,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:53,213 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:57:53,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:57:53,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1017345663, now seen corresponding path program 1 times [2020-11-29 19:57:53,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:57:53,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907143196] [2020-11-29 19:57:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:57:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:53,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:57:53,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:57:53,382 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:59:37,908 WARN L193 SmtUtils]: Spent 1.74 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 20:00:56,159 WARN L193 SmtUtils]: Spent 1.30 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 20:00:56,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:00:56 BoogieIcfgContainer [2020-11-29 20:00:56,589 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:00:56,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:00:56,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:00:56,590 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:00:56,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:57:51" (3/4) ... [2020-11-29 20:00:56,594 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:00:56,662 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_108a99bb-c26a-4acc-a064-3bcc7f367adc/bin/uautomizer/witness.graphml [2020-11-29 20:00:56,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:00:56,675 INFO L168 Benchmark]: Toolchain (without parser) took 188027.29 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 63.2 MB in the beginning and 74.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:00:56,676 INFO L168 Benchmark]: CDTParser took 1.10 ms. Allocated memory is still 98.6 MB. Free memory was 69.6 MB in the beginning and 69.6 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:00:56,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.74 ms. Allocated memory is still 98.6 MB. Free memory was 63.1 MB in the beginning and 64.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:00:56,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.22 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 61.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:00:56,678 INFO L168 Benchmark]: Boogie Preprocessor took 99.55 ms. Allocated memory is still 98.6 MB. Free memory was 61.0 MB in the beginning and 58.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:00:56,679 INFO L168 Benchmark]: RCFGBuilder took 1518.35 ms. Allocated memory is still 98.6 MB. Free memory was 58.1 MB in the beginning and 37.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:00:56,679 INFO L168 Benchmark]: BuchiAutomizer took 185482.74 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 36.4 MB in the beginning and 77.8 MB in the end (delta: -41.4 MB). Peak memory consumption was 47.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:00:56,680 INFO L168 Benchmark]: Witness Printer took 84.25 ms. Allocated memory is still 134.2 MB. Free memory was 77.8 MB in the beginning and 74.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:00:56,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10 ms. Allocated memory is still 98.6 MB. Free memory was 69.6 MB in the beginning and 69.6 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 712.74 ms. Allocated memory is still 98.6 MB. Free memory was 63.1 MB in the beginning and 64.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 119.22 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 61.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.55 ms. Allocated memory is still 98.6 MB. Free memory was 61.0 MB in the beginning and 58.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1518.35 ms. Allocated memory is still 98.6 MB. Free memory was 58.1 MB in the beginning and 37.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 185482.74 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 36.4 MB in the beginning and 77.8 MB in the end (delta: -41.4 MB). Peak memory consumption was 47.8 MB. Max. memory is 16.1 GB. * Witness Printer took 84.25 ms. Allocated memory is still 134.2 MB. Free memory was 77.8 MB in the beginning and 74.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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 6 locations. The remainder module has 145 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 185.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 184.5s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 145 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 150 SDtfs, 577 SDslu, 701 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28458} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=28472, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2586c0eb=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69315aa8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41376544=0, NULL=28458, NULL=0, NULL=0, NULL=28481, retValue_acc=0, NULL=28469, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64b79994=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@533345f0=0, NULL=28460, NULL=28468, methaneLevelCritical=0, NULL=28482, NULL=0, NULL=0, NULL=28479, tmp___1=0, NULL=0, NULL=0, NULL=28485, NULL=28465, cleanupTimeShifts=4, tmp=0, NULL=28486, NULL=0, systemActive=1, waterLevel=1, NULL=0, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=28478, NULL=0, NULL=0, NULL=0, NULL=28464, \result=1, NULL=28467, head=0, pumpRunning=0, \result=0, NULL=28463, NULL=28462, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=28461, NULL=28480, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47bd1474=0, NULL=0, NULL=28476, NULL=0, tmp___2=56, NULL=28483, NULL=28459, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53ece372=0, methAndRunningLastTime=0, \result=0, NULL=28475, NULL=28474, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4801e92c=0, tmp=0, NULL=0, NULL=0, NULL=28473, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ed62e9b=0, NULL=28466, NULL=0, NULL=28471, NULL=28470, NULL=28477, NULL=28484, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L549] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L746] int methAndRunningLastTime ; [L785] int cleanupTimeShifts = 4; [L883] int waterLevel = 1; [L884] int methaneLevelCritical = 0; [L859] int retValue_acc ; [L860] int tmp ; [L371] int retValue_acc ; [L374] retValue_acc = 1 [L375] return (retValue_acc); [L866] tmp = valid_product() [L868] COND TRUE \read(tmp) [L751] methAndRunningLastTime = 0 [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L168] int tmp ; [L171] COND FALSE !(\read(pumpRunning)) [L756] int tmp ; [L757] int tmp___0 ; [L922] int retValue_acc ; [L925] retValue_acc = methaneLevelCritical [L926] return (retValue_acc); [L761] tmp = isMethaneLevelCritical() [L763] COND FALSE !(\read(tmp)) [L779] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...