./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/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 29e1776280b08715eabf298fe4ff149758448bf2 .......................................................................................................................................................................................................................................................................................................................................................................... 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 21:15:05,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:15:05,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:15:05,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:15:05,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:15:05,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:15:05,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:15:05,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:15:05,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:15:05,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:15:05,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:15:05,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:15:05,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:15:05,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:15:05,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:15:05,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:15:05,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:15:05,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:15:05,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:15:05,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:15:05,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:15:05,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:15:05,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:15:05,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:15:05,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:15:05,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:15:05,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:15:05,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:15:05,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:15:05,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:15:05,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:15:05,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:15:05,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:15:05,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:15:05,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:15:05,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:15:05,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:15:05,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:15:05,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:15:05,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:15:05,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:15:05,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 21:15:05,429 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:15:05,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:15:05,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:15:05,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:15:05,431 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:15:05,431 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:15:05,431 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:15:05,432 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:15:05,432 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:15:05,432 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:15:05,432 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:15:05,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:15:05,433 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:15:05,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:15:05,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:15:05,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:15:05,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:15:05,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:15:05,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:15:05,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:15:05,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:15:05,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:15:05,436 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:15:05,436 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:15:05,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:15:05,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:15:05,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:15:05,437 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:15:05,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:15:05,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:15:05,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:15:05,438 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:15:05,439 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:15:05,439 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_d9e7cb17-9e07-41dc-be54-432a4728c381/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29e1776280b08715eabf298fe4ff149758448bf2 [2020-11-29 21:15:05,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:15:05,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:15:05,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:15:05,810 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:15:05,811 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:15:05,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2020-11-29 21:15:05,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/data/e4b0946bd/9a300b98b84a41f6af3c61d10fe77296/FLAGf818d38fb [2020-11-29 21:15:06,497 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:15:06,498 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2020-11-29 21:15:06,512 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/data/e4b0946bd/9a300b98b84a41f6af3c61d10fe77296/FLAGf818d38fb [2020-11-29 21:15:06,823 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/data/e4b0946bd/9a300b98b84a41f6af3c61d10fe77296 [2020-11-29 21:15:06,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:15:06,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:15:06,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:15:06,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:15:06,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:15:06,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:15:06" (1/1) ... [2020-11-29 21:15:06,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46041a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:06, skipping insertion in model container [2020-11-29 21:15:06,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:15:06" (1/1) ... [2020-11-29 21:15:06,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:15:06,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:15:07,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:15:07,304 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:15:07,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:15:07,458 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:15:07,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07 WrapperNode [2020-11-29 21:15:07,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:15:07,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:15:07,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:15:07,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:15:07,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:15:07,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:15:07,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:15:07,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:15:07,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... [2020-11-29 21:15:07,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:15:07,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:15:07,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:15:07,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:15:07,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/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 21:15:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:15:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:15:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:15:07,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:15:09,119 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:15:09,119 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-11-29 21:15:09,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:15:09 BoogieIcfgContainer [2020-11-29 21:15:09,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:15:09,123 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:15:09,123 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:15:09,130 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:15:09,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:15:09,134 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:15:06" (1/3) ... [2020-11-29 21:15:09,136 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1997c954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:15:09, skipping insertion in model container [2020-11-29 21:15:09,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:15:09,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:07" (2/3) ... [2020-11-29 21:15:09,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1997c954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:15:09, skipping insertion in model container [2020-11-29 21:15:09,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:15:09,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:15:09" (3/3) ... [2020-11-29 21:15:09,147 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2020-11-29 21:15:09,214 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:15:09,215 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:15:09,215 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:15:09,215 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:15:09,215 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:15:09,215 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:15:09,215 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:15:09,215 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:15:09,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states. [2020-11-29 21:15:09,255 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 21:15:09,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:15:09,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:15:09,263 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:15:09,263 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:15:09,263 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:15:09,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states. [2020-11-29 21:15:09,270 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 21:15:09,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:15:09,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:15:09,271 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:15:09,271 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:15:09,276 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 4#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~9, main_~tmp~9;havoc main_~retValue_acc~9;havoc main_~tmp~9; 9#L929true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 12#L937true main_#t~ret79 := valid_product_#res;main_~tmp~9 := main_#t~ret79;havoc main_#t~ret79; 13#L893true assume 0 != main_~tmp~9; 69#L867true havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 87#L148-1true [2020-11-29 21:15:09,277 INFO L796 eck$LassoCheckResult]: Loop: 87#L148-1true assume !false; 33#L386true assume test_~splverifierCounter~0 < 4; 3#L387true test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 10#L395true assume !(0 != test_~tmp~5); 11#L395-1true test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 57#L405true assume !(0 != test_~tmp___0~2); 34#L405-1true test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 96#L415true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 107#L423-2true assume !(0 != ~pumpRunning~0); 95#L178true assume !(0 != ~systemActive~0); 50#L185true havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 55#L124true __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 89#L148true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 87#L148-1true [2020-11-29 21:15:09,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:15:09,282 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 21:15:09,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:15:09,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731069234] [2020-11-29 21:15:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:15:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:09,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:09,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:09,712 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:15:09,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:15:09,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344187, now seen corresponding path program 1 times [2020-11-29 21:15:09,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:15:09,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31898150] [2020-11-29 21:15:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:15:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:09,787 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 21:15:09,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31898150] [2020-11-29 21:15:09,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:15:09,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:15:09,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882696216] [2020-11-29 21:15:09,793 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 21:15:09,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:15:09,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:15:09,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:15:09,813 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 3 states. [2020-11-29 21:15:09,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:15:09,882 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2020-11-29 21:15:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:15:09,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 143 transitions. [2020-11-29 21:15:09,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-11-29 21:15:09,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2020-11-29 21:15:09,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2020-11-29 21:15:09,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2020-11-29 21:15:09,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2020-11-29 21:15:09,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:15:09,909 INFO L691 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-11-29 21:15:09,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2020-11-29 21:15:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-11-29 21:15:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-29 21:15:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2020-11-29 21:15:09,955 INFO L714 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-11-29 21:15:09,955 INFO L594 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-11-29 21:15:09,955 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:15:09,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2020-11-29 21:15:09,958 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-11-29 21:15:09,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:15:09,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:15:09,959 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 21:15:09,959 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:15:09,959 INFO L794 eck$LassoCheckResult]: Stem: 267#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 236#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~9, main_~tmp~9;havoc main_~retValue_acc~9;havoc main_~tmp~9; 237#L929 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 260#L937 main_#t~ret79 := valid_product_#res;main_~tmp~9 := main_#t~ret79;havoc main_#t~ret79; 266#L893 assume 0 != main_~tmp~9; 250#L867 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 251#L148-1 [2020-11-29 21:15:09,960 INFO L796 eck$LassoCheckResult]: Loop: 251#L148-1 assume !false; 288#L386 assume test_~splverifierCounter~0 < 4; 218#L387 test_~tmp~5 := test_#t~nondet40;havoc test_#t~nondet40; 219#L395 assume !(0 != test_~tmp~5); 262#L395-1 test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 230#L405 assume !(0 != test_~tmp___0~2); 231#L405-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 303#L415 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 304#L423-2 assume !(0 != ~pumpRunning~0); 269#L178 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 302#L236 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret19, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 279#L210-1 assume !(0 != ~pumpRunning~0); 281#L185 havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 226#L124 __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 227#L148 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 251#L148-1 [2020-11-29 21:15:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:15:09,960 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 21:15:09,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:15:09,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252900117] [2020-11-29 21:15:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:15:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:10,033 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:10,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:10,132 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:15:10,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:15:10,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435465, now seen corresponding path program 1 times [2020-11-29 21:15:10,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:15:10,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583052684] [2020-11-29 21:15:10,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:15:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:10,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:10,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:10,164 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:15:10,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:15:10,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149585, now seen corresponding path program 1 times [2020-11-29 21:15:10,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:15:10,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052227826] [2020-11-29 21:15:10,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:15:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:10,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:10,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:10,355 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:16:21,658 WARN L193 SmtUtils]: Spent 1.19 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 21:17:13,068 WARN L193 SmtUtils]: Spent 51.40 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 21:17:13,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 09:17:13 BoogieIcfgContainer [2020-11-29 21:17:13,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 21:17:13,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:17:13,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:17:13,350 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:17:13,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:15:09" (3/4) ... [2020-11-29 21:17:13,353 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 21:17:13,408 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d9e7cb17-9e07-41dc-be54-432a4728c381/bin/uautomizer/witness.graphml [2020-11-29 21:17:13,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:17:13,410 INFO L168 Benchmark]: Toolchain (without parser) took 126581.89 ms. Allocated memory was 100.7 MB in the beginning and 153.1 MB in the end (delta: 52.4 MB). Free memory was 73.3 MB in the beginning and 123.3 MB in the end (delta: -50.0 MB). Peak memory consumption was 88.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:13,410 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:17:13,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.81 ms. Allocated memory is still 100.7 MB. Free memory was 73.1 MB in the beginning and 67.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:13,411 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.11 ms. Allocated memory is still 100.7 MB. Free memory was 67.5 MB in the beginning and 64.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:13,412 INFO L168 Benchmark]: Boogie Preprocessor took 52.84 ms. Allocated memory is still 100.7 MB. Free memory was 64.0 MB in the beginning and 61.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:13,412 INFO L168 Benchmark]: RCFGBuilder took 1508.84 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 61.6 MB in the beginning and 95.4 MB in the end (delta: -33.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:13,413 INFO L168 Benchmark]: BuchiAutomizer took 124226.18 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 95.4 MB in the beginning and 40.2 MB in the end (delta: 55.2 MB). Peak memory consumption was 86.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:13,414 INFO L168 Benchmark]: Witness Printer took 59.02 ms. Allocated memory is still 153.1 MB. Free memory was 40.2 MB in the beginning and 123.3 MB in the end (delta: -83.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:17:13,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 622.81 ms. Allocated memory is still 100.7 MB. Free memory was 73.1 MB in the beginning and 67.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.11 ms. Allocated memory is still 100.7 MB. Free memory was 67.5 MB in the beginning and 64.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.84 ms. Allocated memory is still 100.7 MB. Free memory was 64.0 MB in the beginning and 61.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1508.84 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 61.6 MB in the beginning and 95.4 MB in the end (delta: -33.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 124226.18 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 95.4 MB in the beginning and 40.2 MB in the end (delta: 55.2 MB). Peak memory consumption was 86.3 MB. Max. memory is 16.1 GB. * Witness Printer took 59.02 ms. Allocated memory is still 153.1 MB. Free memory was 40.2 MB in the beginning and 123.3 MB in the end (delta: -83.1 MB). Peak memory consumption was 4.0 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 124.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 123.8s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 140 SDtfs, 140 SDslu, 0 SDs, 0 SdLazy, 3 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: 385]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=27937} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=27962, NULL=0, NULL=27937, NULL=27963, NULL=27953, NULL=27950, retValue_acc=0, NULL=27954, NULL=27955, methaneLevelCritical=0, NULL=27942, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@417a6bd9=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=27960, NULL=27949, cleanupTimeShifts=4, NULL=27948, NULL=27961, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44b7f5c8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f8759fa=86, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e3e67be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e44d800=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=27947, NULL=0, NULL=27939, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, NULL=27938, NULL=0, NULL=27959, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c10bcb1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a46b7c6=0, NULL=27956, tmp=1, NULL=0, NULL=0, NULL=27957, NULL=0, NULL=0, NULL=27965, NULL=0, tmp___2=86, NULL=0, tmp___0=0, NULL=27945, NULL=27943, splverifierCounter=0, NULL=0, NULL=27941, NULL=27944, NULL=27951, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=27964, NULL=0, tmp=1, NULL=27946, NULL=27940, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12d10daf=0, NULL=27952, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1efe8618=0, NULL=27958} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L171] int pumpRunning = 0; [L172] int systemActive = 1; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L808] int cleanupTimeShifts = 4; [L884] int retValue_acc ; [L885] int tmp ; [L933] int retValue_acc ; [L936] retValue_acc = 1 [L937] return (retValue_acc); [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L376] int splverifierCounter ; [L377] int tmp ; [L378] int tmp___0 ; [L379] int tmp___1 ; [L380] int tmp___2 ; [L383] splverifierCounter = 0 Loop: [L385] COND TRUE 1 [L387] COND TRUE splverifierCounter < 4 [L393] tmp = __VERIFIER_nondet_int() [L395] COND FALSE !(\read(tmp)) [L403] tmp___0 = __VERIFIER_nondet_int() [L405] COND FALSE !(\read(tmp___0)) [L413] tmp___2 = __VERIFIER_nondet_int() [L415] COND TRUE \read(tmp___2) [L369] systemActive = 1 [L178] COND FALSE !(\read(pumpRunning)) [L185] COND TRUE \read(systemActive) [L233] int tmp ; [L236] COND FALSE !(\read(pumpRunning)) [L207] int tmp ; [L210] COND FALSE !(\read(pumpRunning)) [L141] int tmp ; [L142] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L146] tmp = getWaterLevel() [L148] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...