./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product45.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_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/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 c46fa29909af104dc6d1a777f6e396bc5549f246 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:15:56,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:15:56,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:15:56,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:15:56,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:15:56,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:15:56,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:15:56,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:15:56,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:15:56,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:15:56,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:15:56,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:15:56,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:15:56,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:15:56,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:15:56,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:15:56,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:15:56,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:15:56,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:15:56,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:15:56,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:15:56,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:15:56,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:15:56,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:15:56,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:15:56,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:15:56,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:15:56,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:15:56,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:15:56,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:15:56,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:15:56,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:15:56,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:15:56,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:15:56,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:15:56,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:15:56,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:15:56,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:15:56,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:15:56,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:15:56,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:15:56,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:15:56,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:15:56,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:15:56,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:15:56,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:15:56,625 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:15:56,626 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:15:56,626 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:15:56,627 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:15:56,628 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:15:56,628 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:15:56,629 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:15:56,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:15:56,632 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:15:56,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:15:56,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:15:56,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:15:56,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:15:56,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:15:56,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:15:56,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:15:56,635 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:15:56,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:15:56,636 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:15:56,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:15:56,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:15:56,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:15:56,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:15:56,638 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:15:56,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:15:56,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:15:56,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:15:56,642 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:15:56,644 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:15:56,645 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_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46fa29909af104dc6d1a777f6e396bc5549f246 [2020-11-29 19:15:57,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:15:57,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:15:57,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:15:57,082 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:15:57,083 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:15:57,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2020-11-29 19:15:57,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/data/6600a86f2/640f385fafd849aabf6746d92d09592c/FLAGb5b0cb9b4 [2020-11-29 19:15:58,064 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:15:58,070 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2020-11-29 19:15:58,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/data/6600a86f2/640f385fafd849aabf6746d92d09592c/FLAGb5b0cb9b4 [2020-11-29 19:15:58,268 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/data/6600a86f2/640f385fafd849aabf6746d92d09592c [2020-11-29 19:15:58,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:15:58,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:15:58,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:15:58,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:15:58,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:15:58,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:58,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc0ed39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58, skipping insertion in model container [2020-11-29 19:15:58,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:58,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:15:58,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:15:58,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:15:58,799 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:15:58,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:15:58,991 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:15:58,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58 WrapperNode [2020-11-29 19:15:58,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:15:58,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:15:58,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:15:58,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:15:59,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:15:59,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:15:59,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:15:59,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:15:59,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... [2020-11-29 19:15:59,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:15:59,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:15:59,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:15:59,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:15:59,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:15:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:15:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:15:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:15:59,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:16:00,923 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:16:00,925 INFO L298 CfgBuilder]: Removed 200 assume(true) statements. [2020-11-29 19:16:00,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:16:00 BoogieIcfgContainer [2020-11-29 19:16:00,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:16:00,931 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:16:00,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:16:00,936 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:16:00,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:16:00,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:15:58" (1/3) ... [2020-11-29 19:16:00,940 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@189a1010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:16:00, skipping insertion in model container [2020-11-29 19:16:00,940 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:16:00,940 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:15:58" (2/3) ... [2020-11-29 19:16:00,941 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@189a1010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:16:00, skipping insertion in model container [2020-11-29 19:16:00,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:16:00,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:16:00" (3/3) ... [2020-11-29 19:16:00,944 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-11-29 19:16:01,013 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:16:01,013 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:16:01,014 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:16:01,014 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:16:01,014 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:16:01,014 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:16:01,014 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:16:01,014 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:16:01,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states. [2020-11-29 19:16:01,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2020-11-29 19:16:01,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:16:01,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:16:01,084 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:16:01,084 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:16:01,084 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:16:01,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states. [2020-11-29 19:16:01,094 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2020-11-29 19:16:01,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:16:01,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:16:01,096 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:16:01,096 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:16:01,103 INFO L794 eck$LassoCheckResult]: Stem: 76#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 92#L908true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 98#L916true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 78#L509true assume 0 != main_~tmp~3; 35#L480true ~methAndRunningLastTime~0 := 0; 122#L927true havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 99#L938-1true [2020-11-29 19:16:01,103 INFO L796 eck$LassoCheckResult]: Loop: 99#L938-1true assume !false; 116#L737true assume test_~splverifierCounter~0 < 4; 50#L738true test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 72#L746true assume !(0 != test_~tmp~8); 54#L746-1true test_~tmp___0~1 := test_#t~nondet65;havoc test_#t~nondet65; 123#L756true assume !(0 != test_~tmp___0~1); 125#L756-1true test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 38#L766true assume 0 != test_~tmp___2~0; 24#L772-2true assume !(0 != ~pumpRunning~0); 30#L538true assume !(0 != ~systemActive~0); 69#L545true havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 36#L835-3true __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 120#L938true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 99#L938-1true [2020-11-29 19:16:01,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:01,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:16:01,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:01,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852738401] [2020-11-29 19:16:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:01,531 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:01,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:01,778 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:16:01,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:01,780 INFO L82 PathProgramCache]: Analyzing trace with hash 4969612, now seen corresponding path program 1 times [2020-11-29 19:16:01,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:01,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468811737] [2020-11-29 19:16:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:01,803 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:01,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:01,829 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:16:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:01,831 INFO L82 PathProgramCache]: Analyzing trace with hash 838266118, now seen corresponding path program 1 times [2020-11-29 19:16:01,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:01,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975610560] [2020-11-29 19:16:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:16:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:16:02,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975610560] [2020-11-29 19:16:02,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:16:02,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:16:02,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679745438] [2020-11-29 19:16:02,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:16:02,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:16:02,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:16:02,330 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 6 states. [2020-11-29 19:16:02,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:16:02,690 INFO L93 Difference]: Finished difference Result 130 states and 185 transitions. [2020-11-29 19:16:02,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:16:02,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 185 transitions. [2020-11-29 19:16:02,708 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2020-11-29 19:16:02,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 123 states and 178 transitions. [2020-11-29 19:16:02,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2020-11-29 19:16:02,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2020-11-29 19:16:02,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 178 transitions. [2020-11-29 19:16:02,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:16:02,738 INFO L691 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2020-11-29 19:16:02,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 178 transitions. [2020-11-29 19:16:02,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-11-29 19:16:02,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-29 19:16:02,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 178 transitions. [2020-11-29 19:16:02,800 INFO L714 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2020-11-29 19:16:02,800 INFO L594 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2020-11-29 19:16:02,801 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:16:02,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 178 transitions. [2020-11-29 19:16:02,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2020-11-29 19:16:02,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:16:02,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:16:02,815 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:16:02,815 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:16:02,816 INFO L794 eck$LassoCheckResult]: Stem: 374#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 293#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 294#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 389#L916 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 377#L509 assume 0 != main_~tmp~3; 337#L480 ~methAndRunningLastTime~0 := 0; 338#L927 havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 316#L938-1 [2020-11-29 19:16:02,817 INFO L796 eck$LassoCheckResult]: Loop: 316#L938-1 assume !false; 395#L737 assume test_~splverifierCounter~0 < 4; 356#L738 test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 357#L746 assume !(0 != test_~tmp~8); 351#L746-1 test_~tmp___0~1 := test_#t~nondet65;havoc test_#t~nondet65; 362#L756 assume !(0 != test_~tmp___0~1); 289#L756-1 test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 342#L766 assume 0 != test_~tmp___2~0; 318#L772-2 assume !(0 != ~pumpRunning~0); 325#L538 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 295#L596 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret43, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 296#L570-1 assume !(0 == ~pumpRunning~0); 285#L545 havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 339#L835-3 __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 340#L938 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 316#L938-1 [2020-11-29 19:16:02,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:02,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:16:02,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:02,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876556838] [2020-11-29 19:16:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:02,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:02,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:03,033 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:16:03,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:03,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1695508206, now seen corresponding path program 1 times [2020-11-29 19:16:03,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:03,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029168747] [2020-11-29 19:16:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:16:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:16:03,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029168747] [2020-11-29 19:16:03,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:16:03,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:16:03,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258366511] [2020-11-29 19:16:03,068 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:16:03,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:16:03,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:16:03,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:16:03,070 INFO L87 Difference]: Start difference. First operand 123 states and 178 transitions. cyclomatic complexity: 57 Second operand 3 states. [2020-11-29 19:16:03,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:16:03,234 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2020-11-29 19:16:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:16:03,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 232 transitions. [2020-11-29 19:16:03,239 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-29 19:16:03,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 167 states and 232 transitions. [2020-11-29 19:16:03,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167 [2020-11-29 19:16:03,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 167 [2020-11-29 19:16:03,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167 states and 232 transitions. [2020-11-29 19:16:03,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:16:03,245 INFO L691 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2020-11-29 19:16:03,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states and 232 transitions. [2020-11-29 19:16:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-11-29 19:16:03,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-29 19:16:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 232 transitions. [2020-11-29 19:16:03,258 INFO L714 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2020-11-29 19:16:03,258 INFO L594 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2020-11-29 19:16:03,258 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:16:03,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 232 transitions. [2020-11-29 19:16:03,261 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-29 19:16:03,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:16:03,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:16:03,262 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:16:03,263 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] [2020-11-29 19:16:03,263 INFO L794 eck$LassoCheckResult]: Stem: 674#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 592#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 593#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 691#L916 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 677#L509 assume 0 != main_~tmp~3; 631#L480 ~methAndRunningLastTime~0 := 0; 632#L927 havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 610#L938-1 [2020-11-29 19:16:03,263 INFO L796 eck$LassoCheckResult]: Loop: 610#L938-1 assume !false; 698#L737 assume test_~splverifierCounter~0 < 4; 651#L738 test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 652#L746 assume !(0 != test_~tmp~8); 645#L746-1 test_~tmp___0~1 := test_#t~nondet65;havoc test_#t~nondet65; 658#L756 assume !(0 != test_~tmp___0~1); 586#L756-1 test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 637#L766 assume 0 != test_~tmp___2~0; 612#L772-2 assume !(0 != ~pumpRunning~0); 618#L538 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 590#L596 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret43, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 591#L570-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret63, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 646#L875-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 694#L880-1 isHighWaterLevel_#t~ret63 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret63;havoc isHighWaterLevel_#t~ret63; 699#L715-3 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~0 := 1; 700#L715-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 685#L721-1 processEnvironment__wrappee__methaneQuery_#t~ret43 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret43;havoc processEnvironment__wrappee__methaneQuery_#t~ret43; 598#L574-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 581#L545 havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 633#L835-3 __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 634#L938 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 610#L938-1 [2020-11-29 19:16:03,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:03,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:16:03,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:03,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141183620] [2020-11-29 19:16:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:03,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:03,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:03,401 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:16:03,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:03,403 INFO L82 PathProgramCache]: Analyzing trace with hash -434026980, now seen corresponding path program 1 times [2020-11-29 19:16:03,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:03,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136906040] [2020-11-29 19:16:03,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:16:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:16:03,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136906040] [2020-11-29 19:16:03,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:16:03,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:16:03,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687663914] [2020-11-29 19:16:03,462 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:16:03,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:16:03,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:16:03,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:16:03,463 INFO L87 Difference]: Start difference. First operand 167 states and 232 transitions. cyclomatic complexity: 67 Second operand 4 states. [2020-11-29 19:16:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:16:03,622 INFO L93 Difference]: Finished difference Result 321 states and 439 transitions. [2020-11-29 19:16:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:16:03,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 439 transitions. [2020-11-29 19:16:03,627 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2020-11-29 19:16:03,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 321 states and 439 transitions. [2020-11-29 19:16:03,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 321 [2020-11-29 19:16:03,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 321 [2020-11-29 19:16:03,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 439 transitions. [2020-11-29 19:16:03,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:16:03,643 INFO L691 BuchiCegarLoop]: Abstraction has 321 states and 439 transitions. [2020-11-29 19:16:03,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 439 transitions. [2020-11-29 19:16:03,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 179. [2020-11-29 19:16:03,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-11-29 19:16:03,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 244 transitions. [2020-11-29 19:16:03,668 INFO L714 BuchiCegarLoop]: Abstraction has 179 states and 244 transitions. [2020-11-29 19:16:03,668 INFO L594 BuchiCegarLoop]: Abstraction has 179 states and 244 transitions. [2020-11-29 19:16:03,668 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:16:03,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 244 transitions. [2020-11-29 19:16:03,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2020-11-29 19:16:03,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:16:03,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:16:03,675 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:16:03,675 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] [2020-11-29 19:16:03,676 INFO L794 eck$LassoCheckResult]: Stem: 1173#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0; 1088#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1089#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1193#L916 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1176#L509 assume 0 != main_~tmp~3; 1129#L480 ~methAndRunningLastTime~0 := 0; 1130#L927 havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1214#L938-1 [2020-11-29 19:16:03,676 INFO L796 eck$LassoCheckResult]: Loop: 1214#L938-1 assume !false; 1210#L737 assume test_~splverifierCounter~0 < 4; 1149#L738 test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 1150#L746 assume !(0 != test_~tmp~8); 1142#L746-1 test_~tmp___0~1 := test_#t~nondet65;havoc test_#t~nondet65; 1156#L756 assume !(0 != test_~tmp___0~1); 1084#L756-1 test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 1135#L766 assume 0 != test_~tmp___2~0; 1110#L772-2 assume !(0 != ~pumpRunning~0); 1116#L538 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1090#L596 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret43, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1091#L570-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret63, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1144#L875-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1197#L880-1 isHighWaterLevel_#t~ret63 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret63;havoc isHighWaterLevel_#t~ret63; 1203#L715-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~0 := 0; 1204#L715-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1187#L721-1 processEnvironment__wrappee__methaneQuery_#t~ret43 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret43;havoc processEnvironment__wrappee__methaneQuery_#t~ret43; 1096#L574-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 1079#L545 havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1251#L835-3 __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 1233#L938 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 1214#L938-1 [2020-11-29 19:16:03,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:03,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 19:16:03,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:03,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21706830] [2020-11-29 19:16:03,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:03,763 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:03,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:03,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:16:03,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:03,838 INFO L82 PathProgramCache]: Analyzing trace with hash 2085932954, now seen corresponding path program 1 times [2020-11-29 19:16:03,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:03,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161597670] [2020-11-29 19:16:03,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:03,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:03,861 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:03,866 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:16:03,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:16:03,868 INFO L82 PathProgramCache]: Analyzing trace with hash -435892716, now seen corresponding path program 1 times [2020-11-29 19:16:03,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:16:03,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817663441] [2020-11-29 19:16:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:16:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:03,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:16:03,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:16:04,018 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:16:04,193 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-11-29 19:16:04,317 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-29 19:17:48,120 WARN L193 SmtUtils]: Spent 1.73 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:18:59,787 WARN L193 SmtUtils]: Spent 1.19 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:19:00,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:19:00 BoogieIcfgContainer [2020-11-29 19:19:00,109 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:19:00,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:19:00,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:19:00,111 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:19:00,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:16:00" (3/4) ... [2020-11-29 19:19:00,115 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:19:00,207 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3b067be0-7abc-4644-82dc-55d7f9e9c2bb/bin/uautomizer/witness.graphml [2020-11-29 19:19:00,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:19:00,210 INFO L168 Benchmark]: Toolchain (without parser) took 181936.07 ms. Allocated memory was 107.0 MB in the beginning and 167.8 MB in the end (delta: 60.8 MB). Free memory was 70.0 MB in the beginning and 48.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:00,211 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 107.0 MB. Free memory is still 87.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:19:00,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.18 ms. Allocated memory is still 107.0 MB. Free memory was 69.9 MB in the beginning and 71.6 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:00,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.19 ms. Allocated memory is still 107.0 MB. Free memory was 71.2 MB in the beginning and 67.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:00,215 INFO L168 Benchmark]: Boogie Preprocessor took 73.93 ms. Allocated memory is still 107.0 MB. Free memory was 67.4 MB in the beginning and 64.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:00,216 INFO L168 Benchmark]: RCFGBuilder took 1751.94 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 64.7 MB in the beginning and 74.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:00,218 INFO L168 Benchmark]: BuchiAutomizer took 179178.15 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 74.8 MB in the beginning and 51.5 MB in the end (delta: 23.3 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:00,219 INFO L168 Benchmark]: Witness Printer took 98.06 ms. Allocated memory is still 167.8 MB. Free memory was 51.5 MB in the beginning and 48.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:00,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 107.0 MB. Free memory is still 87.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 712.18 ms. Allocated memory is still 107.0 MB. Free memory was 69.9 MB in the beginning and 71.6 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.19 ms. Allocated memory is still 107.0 MB. Free memory was 71.2 MB in the beginning and 67.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.93 ms. Allocated memory is still 107.0 MB. Free memory was 67.4 MB in the beginning and 64.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1751.94 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 64.7 MB in the beginning and 74.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 179178.15 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 74.8 MB in the beginning and 51.5 MB in the end (delta: 23.3 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. * Witness Printer took 98.06 ms. Allocated memory is still 167.8 MB. Free memory was 51.5 MB in the beginning and 48.5 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 179 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 179.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 178.0s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 142 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 179 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 552 SDtfs, 1135 SDslu, 367 SDs, 0 SdLazy, 96 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 736]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14981} State at position 1 is {NULL=0, NULL=14981, NULL=37341, NULL=0, NULL=37340, methaneLevelCritical=0, retValue_acc=1, tmp=0, tmp___1=0, NULL=37323, retValue_acc=0, NULL=0, NULL=37335, NULL=14983, cleanupTimeShifts=4, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@339059bc=0, waterLevel=1, NULL=0, NULL=0, NULL=37336, NULL=37321, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, NULL=37320, NULL=0, tmp=1, NULL=0, NULL=37331, tmp___0=0, NULL=37328, methAndRunningLastTime=0, NULL=14982, head=0, NULL=0, NULL=0, tmp=0, NULL=37330, NULL=0, NULL=0, NULL=37322, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1631ed35=0, NULL=0, retValue_acc=0, NULL=37327, NULL=37338, NULL=37334, tmp___0=0, NULL=0, NULL=0, NULL=37326, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c161ab1=0, NULL=37332, NULL=37325, NULL=37337, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=37339, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@282bbce0=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2adef57e=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=37324, \result=0, NULL=14984, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@478778e=0, NULL=37319, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d364e2a=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e3cef07=0, NULL=37342, NULL=37329, tmp___2=68, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=37318, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d1a41a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cf27338=0, NULL=37333, NULL=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L417] int cleanupTimeShifts = 4; [L530] int pumpRunning = 0; [L531] int systemActive = 1; [L792] int waterLevel = 1; [L793] int methaneLevelCritical = 0; [L921] int methAndRunningLastTime ; [L500] int retValue_acc ; [L501] int tmp ; [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); [L507] tmp = valid_product() [L509] COND TRUE \read(tmp) [L926] methAndRunningLastTime = 0 [L727] int splverifierCounter ; [L728] int tmp ; [L729] int tmp___0 ; [L730] int tmp___1 ; [L731] int tmp___2 ; [L734] splverifierCounter = 0 Loop: [L736] COND TRUE 1 [L738] COND TRUE splverifierCounter < 4 [L744] tmp = __VERIFIER_nondet_int() [L746] COND FALSE !(\read(tmp)) [L754] tmp___0 = __VERIFIER_nondet_int() [L756] COND FALSE !(\read(tmp___0)) [L764] tmp___2 = __VERIFIER_nondet_int() [L766] COND TRUE \read(tmp___2) [L538] COND FALSE !(\read(pumpRunning)) [L545] COND TRUE \read(systemActive) [L593] int tmp ; [L596] COND FALSE !(\read(pumpRunning)) [L567] int tmp ; [L570] COND TRUE ! pumpRunning [L707] int retValue_acc ; [L708] int tmp ; [L709] int tmp___0 ; [L872] int retValue_acc ; [L875] COND TRUE waterLevel < 2 [L876] retValue_acc = 1 [L877] return (retValue_acc); [L713] tmp = isHighWaterSensorDry() [L715] COND TRUE \read(tmp) [L716] tmp___0 = 0 [L720] retValue_acc = tmp___0 [L721] return (retValue_acc); [L572] tmp = isHighWaterLevel() [L574] COND FALSE !(\read(tmp)) [L931] int tmp ; [L932] int tmp___0 ; [L831] int retValue_acc ; [L834] retValue_acc = methaneLevelCritical [L835] return (retValue_acc); [L936] tmp = isMethaneLevelCritical() [L938] COND FALSE !(\read(tmp)) [L954] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...