./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.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_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/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 4a7d01a18e8eb658e3fdab12793134365cb1bc41 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-30 00:00:25,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:00:25,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:00:25,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:00:25,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:00:25,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:00:25,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:00:25,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:00:25,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:00:25,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:00:25,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:00:25,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:00:25,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:00:25,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:00:25,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:00:25,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:00:25,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:00:25,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:00:25,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:00:25,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:00:25,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:00:25,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:00:25,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:00:25,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:00:25,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:00:25,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:00:25,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:00:25,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:00:25,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:00:25,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:00:25,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:00:25,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:00:25,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:00:25,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:00:25,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:00:25,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:00:25,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:00:25,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:00:25,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:00:25,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:00:25,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:00:25,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:00:25,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:00:25,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:00:25,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:00:25,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:00:25,404 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:00:25,405 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:00:25,405 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:00:25,405 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:00:25,406 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:00:25,406 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:00:25,407 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:00:25,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:00:25,408 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:00:25,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:00:25,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:00:25,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:00:25,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:00:25,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:00:25,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:00:25,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:00:25,410 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:00:25,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:00:25,411 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:00:25,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:00:25,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:00:25,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:00:25,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:00:25,412 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:00:25,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:00:25,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:00:25,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:00:25,413 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:00:25,414 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:00:25,415 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_32e6d8e5-fabf-4596-a4ca-904b039a3610/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a7d01a18e8eb658e3fdab12793134365cb1bc41 [2020-11-30 00:00:25,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:00:25,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:00:25,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:00:25,773 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:00:25,774 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:00:25,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2020-11-30 00:00:25,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/data/6941df86a/dd6abd5a76ae4d67948248abe95b3a36/FLAG710366443 [2020-11-30 00:00:26,430 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:00:26,434 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2020-11-30 00:00:26,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/data/6941df86a/dd6abd5a76ae4d67948248abe95b3a36/FLAG710366443 [2020-11-30 00:00:26,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/data/6941df86a/dd6abd5a76ae4d67948248abe95b3a36 [2020-11-30 00:00:26,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:00:26,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:00:26,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:26,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:00:26,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:00:26,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:26" (1/1) ... [2020-11-30 00:00:26,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645f1e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:26, skipping insertion in model container [2020-11-30 00:00:26,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:26" (1/1) ... [2020-11-30 00:00:26,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:00:26,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:00:27,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:27,129 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:00:27,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:27,298 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:00:27,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27 WrapperNode [2020-11-30 00:00:27,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:27,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:27,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:00:27,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:00:27,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:27,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:00:27,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:00:27,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:00:27,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... [2020-11-30 00:00:27,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:00:27,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:00:27,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:00:27,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:00:27,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/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 [2020-11-30 00:00:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:00:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:00:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:00:27,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:00:28,603 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:00:28,603 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-30 00:00:28,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:28 BoogieIcfgContainer [2020-11-30 00:00:28,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:00:28,606 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:00:28,607 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:00:28,612 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:00:28,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:28,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:00:26" (1/3) ... [2020-11-30 00:00:28,615 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d25455a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:28, skipping insertion in model container [2020-11-30 00:00:28,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:28,615 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:27" (2/3) ... [2020-11-30 00:00:28,615 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d25455a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:28, skipping insertion in model container [2020-11-30 00:00:28,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:28,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:28" (3/3) ... [2020-11-30 00:00:28,619 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2020-11-30 00:00:28,677 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:00:28,677 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:00:28,677 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:00:28,677 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:00:28,677 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:00:28,678 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:00:28,678 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:00:28,678 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:00:28,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2020-11-30 00:00:28,726 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-30 00:00:28,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:28,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:28,735 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:28,735 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:28,735 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:00:28,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2020-11-30 00:00:28,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-30 00:00:28,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:28,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:28,745 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:28,745 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:28,750 INFO L794 eck$LassoCheckResult]: Stem: 94#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~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(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(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.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; 6#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 109#L938true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 111#L946true main_#t~ret77 := valid_product_#res;main_~tmp~8 := main_#t~ret77;havoc main_#t~ret77; 114#L902true assume 0 != main_~tmp~8; 44#L876true havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, 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; 112#L968-1true [2020-11-30 00:00:28,751 INFO L796 eck$LassoCheckResult]: Loop: 112#L968-1true assume !false; 101#L393true assume test_~splverifierCounter~0 < 4; 76#L394true test_~tmp~4 := test_#t~nondet38;havoc test_#t~nondet38; 82#L402true assume !(0 != test_~tmp~4); 87#L402-1true test_~tmp___0~2 := test_#t~nondet39;havoc test_#t~nondet39; 113#L412true assume !(0 != test_~tmp___0~2); 116#L412-1true test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 33#L422true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 41#L430-1true assume !(0 != ~pumpRunning~0); 74#L168true assume !(0 != ~systemActive~0); 3#L175true havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 14#L125true __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 110#L968true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 112#L968-1true [2020-11-30 00:00:28,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:00:28,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:28,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117351624] [2020-11-30 00:00:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:29,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:29,164 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:29,230 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:29,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:29,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1670232114, now seen corresponding path program 1 times [2020-11-30 00:00:29,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:29,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657055488] [2020-11-30 00:00:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:29,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657055488] [2020-11-30 00:00:29,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:29,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:29,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922145138] [2020-11-30 00:00:29,315 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:00:29,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:29,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:29,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:29,334 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 3 states. [2020-11-30 00:00:29,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:29,429 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2020-11-30 00:00:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:29,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 330 transitions. [2020-11-30 00:00:29,439 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2020-11-30 00:00:29,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 212 states and 315 transitions. [2020-11-30 00:00:29,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2020-11-30 00:00:29,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2020-11-30 00:00:29,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 315 transitions. [2020-11-30 00:00:29,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:29,450 INFO L691 BuchiCegarLoop]: Abstraction has 212 states and 315 transitions. [2020-11-30 00:00:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states and 315 transitions. [2020-11-30 00:00:29,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2020-11-30 00:00:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-30 00:00:29,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 312 transitions. [2020-11-30 00:00:29,508 INFO L714 BuchiCegarLoop]: Abstraction has 210 states and 312 transitions. [2020-11-30 00:00:29,508 INFO L594 BuchiCegarLoop]: Abstraction has 210 states and 312 transitions. [2020-11-30 00:00:29,508 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:00:29,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 210 states and 312 transitions. [2020-11-30 00:00:29,513 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2020-11-30 00:00:29,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:29,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:29,514 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:29,514 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:29,514 INFO L794 eck$LassoCheckResult]: Stem: 479#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~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(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(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.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; 361#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 362#L938 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 488#L946 main_#t~ret77 := valid_product_#res;main_~tmp~8 := main_#t~ret77;havoc main_#t~ret77; 491#L902 assume 0 != main_~tmp~8; 425#L876 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, 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; 426#L968-1 [2020-11-30 00:00:29,514 INFO L796 eck$LassoCheckResult]: Loop: 426#L968-1 assume !false; 482#L393 assume test_~splverifierCounter~0 < 4; 460#L394 test_~tmp~4 := test_#t~nondet38;havoc test_#t~nondet38; 461#L402 assume !(0 != test_~tmp~4); 519#L402-1 test_~tmp___0~2 := test_#t~nondet39;havoc test_#t~nondet39; 518#L412 assume !(0 != test_~tmp___0~2); 516#L412-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 515#L422 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 412#L430-1 assume !(0 != ~pumpRunning~0); 457#L168 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 458#L226 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 502#L200-1 assume !(0 == ~pumpRunning~0); 501#L175 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 500#L125 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 489#L968 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 426#L968-1 [2020-11-30 00:00:29,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:29,515 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:00:29,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:29,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836822768] [2020-11-30 00:00:29,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:29,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:29,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:29,718 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:29,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:29,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1415980244, now seen corresponding path program 1 times [2020-11-30 00:00:29,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:29,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839274675] [2020-11-30 00:00:29,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:29,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839274675] [2020-11-30 00:00:29,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:29,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:29,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676340856] [2020-11-30 00:00:29,764 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:00:29,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:29,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:29,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:29,765 INFO L87 Difference]: Start difference. First operand 210 states and 312 transitions. cyclomatic complexity: 105 Second operand 3 states. [2020-11-30 00:00:29,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:29,924 INFO L93 Difference]: Finished difference Result 293 states and 412 transitions. [2020-11-30 00:00:29,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:29,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 412 transitions. [2020-11-30 00:00:29,930 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2020-11-30 00:00:29,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 293 states and 412 transitions. [2020-11-30 00:00:29,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 293 [2020-11-30 00:00:29,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 293 [2020-11-30 00:00:29,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 293 states and 412 transitions. [2020-11-30 00:00:29,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:29,947 INFO L691 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2020-11-30 00:00:29,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states and 412 transitions. [2020-11-30 00:00:29,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-11-30 00:00:29,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-11-30 00:00:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 412 transitions. [2020-11-30 00:00:29,975 INFO L714 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2020-11-30 00:00:29,975 INFO L594 BuchiCegarLoop]: Abstraction has 293 states and 412 transitions. [2020-11-30 00:00:29,976 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:00:29,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 293 states and 412 transitions. [2020-11-30 00:00:29,981 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2020-11-30 00:00:29,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:29,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:29,983 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:29,983 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, 1, 1] [2020-11-30 00:00:29,984 INFO L794 eck$LassoCheckResult]: Stem: 987#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~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(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(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.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; 871#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 872#L938 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 999#L946 main_#t~ret77 := valid_product_#res;main_~tmp~8 := main_#t~ret77;havoc main_#t~ret77; 1001#L902 assume 0 != main_~tmp~8; 936#L876 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, 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; 937#L968-1 [2020-11-30 00:00:29,984 INFO L796 eck$LassoCheckResult]: Loop: 937#L968-1 assume !false; 1002#L393 assume test_~splverifierCounter~0 < 4; 1071#L394 test_~tmp~4 := test_#t~nondet38;havoc test_#t~nondet38; 1070#L402 assume !(0 != test_~tmp~4); 1068#L402-1 test_~tmp___0~2 := test_#t~nondet39;havoc test_#t~nondet39; 1067#L412 assume !(0 != test_~tmp___0~2); 1004#L412-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 922#L422 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 923#L430-1 assume !(0 != ~pumpRunning~0); 933#L168 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 971#L226 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1059#L200-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1058#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1056#L138-1 isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; 1054#L328-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1048#L328-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1047#L334-1 processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; 1045#L204-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 863#L175 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 864#L125 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 888#L968 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 937#L968-1 [2020-11-30 00:00:29,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:29,990 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:00:29,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:29,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081587205] [2020-11-30 00:00:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:30,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:30,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:30,151 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:30,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:30,156 INFO L82 PathProgramCache]: Analyzing trace with hash 890409560, now seen corresponding path program 1 times [2020-11-30 00:00:30,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:30,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379739609] [2020-11-30 00:00:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:30,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:30,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:30,177 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:30,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:30,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1346480754, now seen corresponding path program 1 times [2020-11-30 00:00:30,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:30,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740313672] [2020-11-30 00:00:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:30,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:30,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:30,324 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:30,471 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 00:02:02,457 WARN L193 SmtUtils]: Spent 1.53 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:03:05,605 WARN L193 SmtUtils]: Spent 1.05 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:03:05,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:03:05 BoogieIcfgContainer [2020-11-30 00:03:05,971 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:03:05,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:03:05,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:03:05,972 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:03:05,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:28" (3/4) ... [2020-11-30 00:03:05,982 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:03:06,054 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_32e6d8e5-fabf-4596-a4ca-904b039a3610/bin/uautomizer/witness.graphml [2020-11-30 00:03:06,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:03:06,055 INFO L168 Benchmark]: Toolchain (without parser) took 159362.33 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 67.5 MB in the beginning and 67.1 MB in the end (delta: 407.5 kB). Peak memory consumption was 44.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:06,056 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 96.5 MB. Free memory was 56.3 MB in the beginning and 56.3 MB in the end (delta: 11.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:03:06,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.69 ms. Allocated memory is still 96.5 MB. Free memory was 67.5 MB in the beginning and 63.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:06,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.26 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 59.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:06,066 INFO L168 Benchmark]: Boogie Preprocessor took 48.65 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 56.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:06,066 INFO L168 Benchmark]: RCFGBuilder took 1167.91 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.7 MB in the beginning and 83.4 MB in the end (delta: -26.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:06,068 INFO L168 Benchmark]: BuchiAutomizer took 157364.68 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 82.8 MB in the beginning and 70.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:06,068 INFO L168 Benchmark]: Witness Printer took 82.32 ms. Allocated memory is still 142.6 MB. Free memory was 70.1 MB in the beginning and 67.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:06,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 96.5 MB. Free memory was 56.3 MB in the beginning and 56.3 MB in the end (delta: 11.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 604.69 ms. Allocated memory is still 96.5 MB. Free memory was 67.5 MB in the beginning and 63.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.26 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 59.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.65 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 56.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1167.91 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.7 MB in the beginning and 83.4 MB in the end (delta: -26.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 157364.68 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 82.8 MB in the beginning and 70.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. * Witness Printer took 82.32 ms. Allocated memory is still 142.6 MB. Free memory was 70.1 MB in the beginning and 67.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 293 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 157.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 156.7s. Construction of modules took 0.1s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 293 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 324 SDtfs, 271 SDslu, 224 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 392]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=32499} State at position 1 is {NULL=0, NULL=0, NULL=32513, NULL=0, NULL=32499, NULL=32527, NULL=0, NULL=32505, retValue_acc=1, methaneLevelCritical=0, tmp=0, NULL=32519, tmp___1=0, NULL=32511, retValue_acc=0, NULL=32518, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e236014=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b722f6e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a497e28=0, NULL=32501, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f6815d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3adeeb3e=83, waterLevel=1, NULL=0, NULL=32508, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=32524, retValue_acc=1, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=32500, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, tmp___0=0, tmp=1, NULL=32522, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@469842b1=0, NULL=32514, NULL=0, NULL=32502, NULL=0, NULL=0, NULL=32509, NULL=32523, NULL=32512, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f22e555=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4458ca20=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65c18023=0, tmp=0, NULL=32526, NULL=32503, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=32520, \result=1, NULL=0, NULL=32504, \result=0, NULL=0, retValue_acc=0, NULL=32525, \result=0, NULL=32521, NULL=0, NULL=32506, NULL=32515, tmp___2=83, splverifierCounter=0, NULL=0, NULL=32516, NULL=32510, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@292f8267=0, NULL=32517, NULL=32507} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L817] int cleanupTimeShifts = 4; [L893] int retValue_acc ; [L894] int tmp ; [L942] int retValue_acc ; [L945] retValue_acc = 1 [L946] return (retValue_acc); [L900] tmp = valid_product() [L902] COND TRUE \read(tmp) [L383] int splverifierCounter ; [L384] int tmp ; [L385] int tmp___0 ; [L386] int tmp___1 ; [L387] int tmp___2 ; [L390] splverifierCounter = 0 Loop: [L392] COND TRUE 1 [L394] COND TRUE splverifierCounter < 4 [L400] tmp = __VERIFIER_nondet_int() [L402] COND FALSE !(\read(tmp)) [L410] tmp___0 = __VERIFIER_nondet_int() [L412] COND FALSE !(\read(tmp___0)) [L420] tmp___2 = __VERIFIER_nondet_int() [L422] COND TRUE \read(tmp___2) [L376] systemActive = 1 [L168] COND FALSE !(\read(pumpRunning)) [L175] COND TRUE \read(systemActive) [L223] int tmp ; [L226] COND FALSE !(\read(pumpRunning)) [L197] int tmp ; [L200] COND TRUE ! pumpRunning [L320] int retValue_acc ; [L321] int tmp ; [L322] int tmp___0 ; [L130] int retValue_acc ; [L133] COND TRUE waterLevel < 2 [L134] retValue_acc = 1 [L135] return (retValue_acc); [L326] tmp = isHighWaterSensorDry() [L328] COND TRUE \read(tmp) [L329] tmp___0 = 0 [L333] retValue_acc = tmp___0 [L334] return (retValue_acc); [L202] tmp = isHighWaterLevel() [L204] COND FALSE !(\read(tmp)) [L961] int tmp ; [L962] int tmp___0 ; [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); [L966] tmp = getWaterLevel() [L968] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...