./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.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_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/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 55f9e12a1d6b423a02c0a8851f72b2ca97ddca88 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:36:54,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:36:54,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:36:54,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:36:54,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:36:54,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:36:54,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:36:54,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:36:54,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:36:54,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:36:54,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:36:54,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:36:54,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:36:54,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:36:54,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:36:54,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:36:54,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:36:54,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:36:54,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:36:54,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:36:54,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:36:54,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:36:54,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:36:54,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:36:54,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:36:54,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:36:54,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:36:54,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:36:54,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:36:54,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:36:54,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:36:54,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:36:54,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:36:54,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:36:54,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:36:54,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:36:54,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:36:54,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:36:54,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:36:54,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:36:54,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:36:54,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:36:54,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:36:54,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:36:54,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:36:54,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:36:54,437 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:36:54,437 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:36:54,437 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:36:54,437 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:36:54,438 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:36:54,438 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:36:54,438 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:36:54,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:36:54,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:36:54,439 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:36:54,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:36:54,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:36:54,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:36:54,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:36:54,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:36:54,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:36:54,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:36:54,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:36:54,441 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:36:54,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:36:54,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:36:54,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:36:54,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:36:54,443 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:36:54,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:36:54,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:36:54,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:36:54,444 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:36:54,445 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:36:54,445 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_944716e0-9b9c-4c52-808f-1cb27950f08f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55f9e12a1d6b423a02c0a8851f72b2ca97ddca88 [2020-11-29 22:36:54,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:36:54,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:36:54,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:36:54,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:36:54,769 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:36:54,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2020-11-29 22:36:54,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/data/5fc149245/f715248a959d418fbb3e0704466b594e/FLAG91f187197 [2020-11-29 22:36:55,450 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:36:55,450 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2020-11-29 22:36:55,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/data/5fc149245/f715248a959d418fbb3e0704466b594e/FLAG91f187197 [2020-11-29 22:36:55,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/data/5fc149245/f715248a959d418fbb3e0704466b594e [2020-11-29 22:36:55,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:36:55,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:36:55,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:36:55,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:36:55,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:36:55,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:36:55" (1/1) ... [2020-11-29 22:36:55,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80b3608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:55, skipping insertion in model container [2020-11-29 22:36:55,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:36:55" (1/1) ... [2020-11-29 22:36:55,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:36:55,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:36:56,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:36:56,248 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:36:56,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:36:56,434 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:36:56,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56 WrapperNode [2020-11-29 22:36:56,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:36:56,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:36:56,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:36:56,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:36:56,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:36:56,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:36:56,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:36:56,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:36:56,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... [2020-11-29 22:36:56,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:36:56,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:36:56,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:36:56,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:36:56,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/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 22:36:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:36:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:36:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:36:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:36:57,864 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:36:57,865 INFO L298 CfgBuilder]: Removed 178 assume(true) statements. [2020-11-29 22:36:57,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:36:57 BoogieIcfgContainer [2020-11-29 22:36:57,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:36:57,868 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:36:57,868 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:36:57,872 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:36:57,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:36:57,888 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:36:55" (1/3) ... [2020-11-29 22:36:57,889 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b203cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:36:57, skipping insertion in model container [2020-11-29 22:36:57,890 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:36:57,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:36:56" (2/3) ... [2020-11-29 22:36:57,890 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b203cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:36:57, skipping insertion in model container [2020-11-29 22:36:57,890 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:36:57,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:36:57" (3/3) ... [2020-11-29 22:36:57,892 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product22.cil.c [2020-11-29 22:36:57,955 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:36:57,955 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:36:57,955 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:36:57,955 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:36:57,955 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:36:57,955 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:36:57,955 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:36:57,956 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:36:57,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2020-11-29 22:36:58,002 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 22:36:58,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:36:58,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:36:58,017 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:36:58,017 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:36:58,018 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:36:58,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2020-11-29 22:36:58,038 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 22:36:58,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:36:58,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:36:58,041 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:36:58,041 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:36:58,046 INFO L794 eck$LassoCheckResult]: Stem: 92#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 49#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 60#L75true main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 64#L485true assume 0 != main_~tmp~5; 20#L461true ~switchedOnBeforeTS~0 := 0; 93#L289true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L310-1true [2020-11-29 22:36:58,047 INFO L796 eck$LassoCheckResult]: Loop: 6#L310-1true assume !false; 115#L346true assume test_~splverifierCounter~0 < 4; 84#L347true test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 90#L355true assume !(0 != test_~tmp~4); 91#L355-1true test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 3#L365true assume !(0 != test_~tmp___0~2); 4#L365-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 54#L375true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 61#L383-2true havoc __utac_acc__Specification5_spec__2_#t~ret28;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 43#L213true __utac_acc__Specification5_spec__2_#t~ret28 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28;havoc __utac_acc__Specification5_spec__2_#t~ret28; 9#L299true assume !(0 != ~pumpRunning~0); 68#L102true assume !(0 != ~systemActive~0); 13#L109true havoc __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_#t~ret30, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 23#L940true __utac_acc__Specification5_spec__3_#t~ret29 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret29;havoc __utac_acc__Specification5_spec__3_#t~ret29; 5#L310true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 6#L310-1true [2020-11-29 22:36:58,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:36:58,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 22:36:58,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:36:58,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079549436] [2020-11-29 22:36:58,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:36:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:58,365 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:58,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:58,574 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:36:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:36:58,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1012669327, now seen corresponding path program 1 times [2020-11-29 22:36:58,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:36:58,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923252498] [2020-11-29 22:36:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:36:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:58,651 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 22:36:58,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923252498] [2020-11-29 22:36:58,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:36:58,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:36:58,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369197089] [2020-11-29 22:36:58,658 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:36:58,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:36:58,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:36:58,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:36:58,677 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 3 states. [2020-11-29 22:36:58,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:36:58,739 INFO L93 Difference]: Finished difference Result 111 states and 155 transitions. [2020-11-29 22:36:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:36:58,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 155 transitions. [2020-11-29 22:36:58,751 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 22:36:58,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2020-11-29 22:36:58,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2020-11-29 22:36:58,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2020-11-29 22:36:58,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2020-11-29 22:36:58,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:36:58,768 INFO L691 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 22:36:58,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2020-11-29 22:36:58,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-11-29 22:36:58,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-29 22:36:58,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2020-11-29 22:36:58,819 INFO L714 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 22:36:58,819 INFO L594 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 22:36:58,819 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:36:58,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2020-11-29 22:36:58,824 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 22:36:58,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:36:58,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:36:58,827 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:36:58,827 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:36:58,827 INFO L794 eck$LassoCheckResult]: Stem: 330#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 242#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 243#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 304#L75 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 313#L485 assume 0 != main_~tmp~5; 266#L461 ~switchedOnBeforeTS~0 := 0; 267#L289 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 239#L310-1 [2020-11-29 22:36:58,829 INFO L796 eck$LassoCheckResult]: Loop: 239#L310-1 assume !false; 241#L346 assume test_~splverifierCounter~0 < 4; 325#L347 test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 326#L355 assume !(0 != test_~tmp~4); 329#L355-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 234#L365 assume !(0 != test_~tmp___0~2); 236#L365-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 237#L375 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 308#L383-2 havoc __utac_acc__Specification5_spec__2_#t~ret28;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 297#L213 __utac_acc__Specification5_spec__2_#t~ret28 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28;havoc __utac_acc__Specification5_spec__2_#t~ret28; 247#L299 assume !(0 != ~pumpRunning~0); 248#L102 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 317#L160 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret8, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 321#L134-1 assume !(0 != ~pumpRunning~0); 256#L109 havoc __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_#t~ret30, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 257#L940 __utac_acc__Specification5_spec__3_#t~ret29 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret29;havoc __utac_acc__Specification5_spec__3_#t~ret29; 238#L310 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 239#L310-1 [2020-11-29 22:36:58,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:36:58,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 22:36:58,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:36:58,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553615215] [2020-11-29 22:36:58,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:36:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:58,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,019 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,033 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:36:59,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:36:59,034 INFO L82 PathProgramCache]: Analyzing trace with hash 363233729, now seen corresponding path program 1 times [2020-11-29 22:36:59,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:36:59,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213353732] [2020-11-29 22:36:59,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:36:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,045 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,050 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:36:59,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:36:59,054 INFO L82 PathProgramCache]: Analyzing trace with hash -759378629, now seen corresponding path program 1 times [2020-11-29 22:36:59,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:36:59,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915056292] [2020-11-29 22:36:59,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:36:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:59,138 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 22:36:59,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915056292] [2020-11-29 22:36:59,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:36:59,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:36:59,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992928623] [2020-11-29 22:36:59,253 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-29 22:36:59,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:36:59,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:36:59,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:36:59,315 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand 5 states. [2020-11-29 22:36:59,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:36:59,627 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2020-11-29 22:36:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:36:59,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2020-11-29 22:36:59,637 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2020-11-29 22:36:59,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2020-11-29 22:36:59,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2020-11-29 22:36:59,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2020-11-29 22:36:59,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2020-11-29 22:36:59,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:36:59,646 INFO L691 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2020-11-29 22:36:59,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2020-11-29 22:36:59,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2020-11-29 22:36:59,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-29 22:36:59,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2020-11-29 22:36:59,663 INFO L714 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2020-11-29 22:36:59,663 INFO L594 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2020-11-29 22:36:59,663 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:36:59,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2020-11-29 22:36:59,665 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2020-11-29 22:36:59,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:36:59,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:36:59,666 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:36:59,666 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:36:59,666 INFO L794 eck$LassoCheckResult]: Stem: 780#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);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~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);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~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 682#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 683#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 750#L75 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 759#L485 assume 0 != main_~tmp~5; 707#L461 ~switchedOnBeforeTS~0 := 0; 708#L289 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 781#L310-1 [2020-11-29 22:36:59,667 INFO L796 eck$LassoCheckResult]: Loop: 781#L310-1 assume !false; 843#L346 assume test_~splverifierCounter~0 < 4; 773#L347 test_~tmp~4 := test_#t~nondet31;havoc test_#t~nondet31; 774#L355 assume !(0 != test_~tmp~4); 779#L355-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 674#L365 assume !(0 != test_~tmp___0~2); 676#L365-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 677#L375 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 754#L383-2 havoc __utac_acc__Specification5_spec__2_#t~ret28;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 744#L213 __utac_acc__Specification5_spec__2_#t~ret28 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28;havoc __utac_acc__Specification5_spec__2_#t~ret28; 689#L299 assume !(0 != ~pumpRunning~0); 690#L102 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 763#L160 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret8, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 769#L134-1 assume !(0 != ~pumpRunning~0); 696#L109 havoc __utac_acc__Specification5_spec__3_#t~ret29, __utac_acc__Specification5_spec__3_#t~ret30, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 697#L940 __utac_acc__Specification5_spec__3_#t~ret29 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret29;havoc __utac_acc__Specification5_spec__3_#t~ret29; 678#L310 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 679#L213-1 __utac_acc__Specification5_spec__3_#t~ret30 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret30;havoc __utac_acc__Specification5_spec__3_#t~ret30; 731#L314 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 781#L310-1 [2020-11-29 22:36:59,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:36:59,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 22:36:59,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:36:59,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751543823] [2020-11-29 22:36:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:36:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,770 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,792 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:36:59,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:36:59,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1175247996, now seen corresponding path program 1 times [2020-11-29 22:36:59,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:36:59,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958088463] [2020-11-29 22:36:59,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:36:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,803 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,807 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:36:59,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:36:59,808 INFO L82 PathProgramCache]: Analyzing trace with hash 381563254, now seen corresponding path program 1 times [2020-11-29 22:36:59,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:36:59,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757251627] [2020-11-29 22:36:59,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:36:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:59,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:59,902 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:00,050 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-29 22:38:23,584 WARN L193 SmtUtils]: Spent 1.39 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 22:39:15,831 WARN L193 SmtUtils]: Spent 52.22 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 22:39:16,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:39:16 BoogieIcfgContainer [2020-11-29 22:39:16,077 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:39:16,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:39:16,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:39:16,078 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:39:16,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:36:57" (3/4) ... [2020-11-29 22:39:16,082 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:39:16,138 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_944716e0-9b9c-4c52-808f-1cb27950f08f/bin/uautomizer/witness.graphml [2020-11-29 22:39:16,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:39:16,146 INFO L168 Benchmark]: Toolchain (without parser) took 140403.13 ms. Allocated memory was 98.6 MB in the beginning and 151.0 MB in the end (delta: 52.4 MB). Free memory was 68.6 MB in the beginning and 58.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:39:16,147 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 98.6 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:39:16,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.52 ms. Allocated memory is still 98.6 MB. Free memory was 68.4 MB in the beginning and 64.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:39:16,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.14 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 60.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:39:16,149 INFO L168 Benchmark]: Boogie Preprocessor took 79.81 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 58.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:39:16,150 INFO L168 Benchmark]: RCFGBuilder took 1258.77 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 58.0 MB in the beginning and 54.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:39:16,150 INFO L168 Benchmark]: BuchiAutomizer took 138209.25 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 54.4 MB in the beginning and 60.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:39:16,151 INFO L168 Benchmark]: Witness Printer took 66.78 ms. Allocated memory is still 151.0 MB. Free memory was 60.7 MB in the beginning and 58.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:39:16,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 98.6 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 691.52 ms. Allocated memory is still 98.6 MB. Free memory was 68.4 MB in the beginning and 64.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.14 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 60.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.81 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 58.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1258.77 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 58.0 MB in the beginning and 54.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138209.25 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 54.4 MB in the beginning and 60.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. * Witness Printer took 66.78 ms. Allocated memory is still 151.0 MB. Free memory was 60.7 MB in the beginning and 58.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 137.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 393 SDtfs, 695 SDslu, 468 SDs, 0 SdLazy, 100 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 345]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=28251, NULL=0, retValue_acc=1, NULL=1, retValue_acc=0, NULL=28258, NULL=28241, tmp=0, NULL=28257, NULL=28236, methaneLevelCritical=0, NULL=28255, NULL=0, tmp=1, NULL=0, tmp=0, NULL=28256, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@778b5cf9=0, NULL=28242, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ad81957=0, NULL=0, NULL=0, NULL=28238, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=28237, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6792a18c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@293bc0e8=74, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=28245, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5196e69=0, NULL=28235, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=28231, \result=1, NULL=28243, head=0, pumpRunning=0, NULL=28246, \result=0, tmp___0=0, NULL=28240, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@90ec9b5=0, NULL=28253, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c907ef1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30ffe2de=0, NULL=0, NULL=28250, NULL=28239, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32e31f15=0, NULL=0, NULL=28233, NULL=0, retValue_acc=1, tmp___2=74, tmp___0=0, NULL=28248, splverifierCounter=0, NULL=0, NULL=0, NULL=28234, NULL=28254, NULL=28244, tmp=0, head=0, NULL=0, NULL=28247, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@764cb25c=0, NULL=0, NULL=28232, NULL=0, NULL=28249, NULL=28252, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L283] int switchedOnBeforeTS ; [L402] int cleanupTimeShifts = 4; [L668] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L865] int waterLevel = 1; [L866] int methaneLevelCritical = 0; [L476] int retValue_acc ; [L477] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L483] tmp = valid_product() [L485] COND TRUE \read(tmp) [L288] switchedOnBeforeTS = 0 [L336] int splverifierCounter ; [L337] int tmp ; [L338] int tmp___0 ; [L339] int tmp___1 ; [L340] int tmp___2 ; [L343] splverifierCounter = 0 Loop: [L345] COND TRUE 1 [L347] COND TRUE splverifierCounter < 4 [L353] tmp = __VERIFIER_nondet_int() [L355] COND FALSE !(\read(tmp)) [L363] tmp___0 = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp___0)) [L373] tmp___2 = __VERIFIER_nondet_int() [L375] COND TRUE \read(tmp___2) [L276] systemActive = 1 [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L297] switchedOnBeforeTS = isPumpRunning() [L102] COND FALSE !(\read(pumpRunning)) [L109] COND TRUE \read(systemActive) [L157] int tmp ; [L160] COND FALSE !(\read(pumpRunning)) [L131] int tmp ; [L134] COND FALSE !(\read(pumpRunning)) [L303] int tmp ; [L304] int tmp___0 ; [L936] int retValue_acc ; [L939] retValue_acc = waterLevel [L940] return (retValue_acc); [L308] tmp = getWaterLevel() [L310] COND TRUE tmp != 2 [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L312] tmp___0 = isPumpRunning() [L314] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...