./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product24.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_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/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 4d600d6e5a0c8c7440a2a4227260a3dd4c984758 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:37:01,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:37:01,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:37:01,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:37:01,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:37:01,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:37:01,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:37:01,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:37:01,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:37:01,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:37:01,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:37:01,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:37:01,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:37:01,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:37:01,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:37:01,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:37:01,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:37:01,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:37:01,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:37:01,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:37:01,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:37:01,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:37:01,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:37:01,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:37:01,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:37:01,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:37:01,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:37:01,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:37:01,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:37:01,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:37:01,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:37:01,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:37:01,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:37:01,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:37:01,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:37:01,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:37:01,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:37:01,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:37:01,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:37:01,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:37:01,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:37:01,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:37:01,628 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:37:01,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:37:01,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:37:01,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:37:01,632 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:37:01,633 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:37:01,633 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:37:01,633 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:37:01,633 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:37:01,634 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:37:01,635 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:37:01,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:37:01,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:37:01,636 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:37:01,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:37:01,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:37:01,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:37:01,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:37:01,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:37:01,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:37:01,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:37:01,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:37:01,639 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:37:01,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:37:01,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:37:01,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:37:01,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:37:01,640 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:37:01,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:37:01,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:37:01,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:37:01,641 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:37:01,642 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:37:01,642 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_57bf4eca-90fc-4a49-9f19-1f1e9734b776/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d600d6e5a0c8c7440a2a4227260a3dd4c984758 [2020-11-30 00:37:01,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:37:01,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:37:01,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:37:01,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:37:01,973 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:37:01,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c [2020-11-30 00:37:02,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/data/7dca2122b/a22f4d6751c94442bc7050bfad98a753/FLAG542ba8060 [2020-11-30 00:37:02,810 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:37:02,811 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c [2020-11-30 00:37:02,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/data/7dca2122b/a22f4d6751c94442bc7050bfad98a753/FLAG542ba8060 [2020-11-30 00:37:03,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/data/7dca2122b/a22f4d6751c94442bc7050bfad98a753 [2020-11-30 00:37:03,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:37:03,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:37:03,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:37:03,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:37:03,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:37:03,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc0ddc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03, skipping insertion in model container [2020-11-30 00:37:03,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:37:03,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:37:03,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:37:03,649 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:37:03,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:37:03,825 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:37:03,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03 WrapperNode [2020-11-30 00:37:03,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:37:03,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:37:03,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:37:03,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:37:03,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:37:03,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:37:03,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:37:03,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:37:03,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... [2020-11-30 00:37:03,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:37:03,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:37:03,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:37:03,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:37:03,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/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 00:37:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:37:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:37:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:37:04,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:37:05,430 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:37:05,431 INFO L298 CfgBuilder]: Removed 182 assume(true) statements. [2020-11-30 00:37:05,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:37:05 BoogieIcfgContainer [2020-11-30 00:37:05,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:37:05,434 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:37:05,435 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:37:05,439 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:37:05,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:37:05,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:37:03" (1/3) ... [2020-11-30 00:37:05,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17302c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:37:05, skipping insertion in model container [2020-11-30 00:37:05,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:37:05,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:03" (2/3) ... [2020-11-30 00:37:05,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17302c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:37:05, skipping insertion in model container [2020-11-30 00:37:05,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:37:05,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:37:05" (3/3) ... [2020-11-30 00:37:05,445 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product24.cil.c [2020-11-30 00:37:05,500 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:37:05,500 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:37:05,500 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:37:05,500 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:37:05,501 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:37:05,501 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:37:05,501 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:37:05,501 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:37:05,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2020-11-30 00:37:05,570 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 00:37:05,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:37:05,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:37:05,582 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:05,582 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:05,583 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:37:05,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2020-11-30 00:37:05,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 00:37:05,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:37:05,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:37:05,603 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:05,603 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:05,616 INFO L794 eck$LassoCheckResult]: Stem: 84#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 3#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 80#L264true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 96#L272true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 114#L134true assume 0 != main_~tmp~0; 33#L105true ~switchedOnBeforeTS~0 := 0; 98#L930true havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 15#L951-1true [2020-11-30 00:37:05,617 INFO L796 eck$LassoCheckResult]: Loop: 15#L951-1true assume !false; 26#L499true assume test_~splverifierCounter~0 < 4; 117#L500true test_~tmp~4 := test_#t~nondet39;havoc test_#t~nondet39; 7#L508true assume !(0 != test_~tmp~4); 8#L508-1true test_~tmp___0~1 := test_#t~nondet40;havoc test_#t~nondet40; 43#L518true assume !(0 != test_~tmp___0~1); 46#L518-1true test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 108#L528true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 115#L536-1true havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 54#L405true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 13#L940true assume !(0 != ~pumpRunning~0); 97#L294true assume !(0 != ~systemActive~0); 30#L301true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 110#L228true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 12#L951true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 15#L951-1true [2020-11-30 00:37:05,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:05,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:37:05,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:05,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138771242] [2020-11-30 00:37:05,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:06,057 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:06,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:06,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:06,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:06,313 INFO L82 PathProgramCache]: Analyzing trace with hash 676518968, now seen corresponding path program 1 times [2020-11-30 00:37:06,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:06,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877298310] [2020-11-30 00:37:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:06,408 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 00:37:06,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877298310] [2020-11-30 00:37:06,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:37:06,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:37:06,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679911313] [2020-11-30 00:37:06,414 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:37:06,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:06,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:37:06,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:37:06,439 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 3 states. [2020-11-30 00:37:06,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:06,528 INFO L93 Difference]: Finished difference Result 219 states and 311 transitions. [2020-11-30 00:37:06,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:37:06,531 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 311 transitions. [2020-11-30 00:37:06,536 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2020-11-30 00:37:06,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 205 states and 296 transitions. [2020-11-30 00:37:06,545 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2020-11-30 00:37:06,546 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2020-11-30 00:37:06,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 205 states and 296 transitions. [2020-11-30 00:37:06,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:37:06,550 INFO L691 BuchiCegarLoop]: Abstraction has 205 states and 296 transitions. [2020-11-30 00:37:06,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states and 296 transitions. [2020-11-30 00:37:06,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2020-11-30 00:37:06,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-11-30 00:37:06,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 293 transitions. [2020-11-30 00:37:06,610 INFO L714 BuchiCegarLoop]: Abstraction has 203 states and 293 transitions. [2020-11-30 00:37:06,611 INFO L594 BuchiCegarLoop]: Abstraction has 203 states and 293 transitions. [2020-11-30 00:37:06,611 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:37:06,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states and 293 transitions. [2020-11-30 00:37:06,617 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2020-11-30 00:37:06,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:37:06,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:37:06,619 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:06,619 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:06,620 INFO L794 eck$LassoCheckResult]: Stem: 458#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 344#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 345#L264 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 455#L272 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 463#L134 assume 0 != main_~tmp~0; 401#L105 ~switchedOnBeforeTS~0 := 0; 402#L930 havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 365#L951-1 [2020-11-30 00:37:06,620 INFO L796 eck$LassoCheckResult]: Loop: 365#L951-1 assume !false; 371#L499 assume test_~splverifierCounter~0 < 4; 391#L500 test_~tmp~4 := test_#t~nondet39;havoc test_#t~nondet39; 546#L508 assume !(0 != test_~tmp~4); 544#L508-1 test_~tmp___0~1 := test_#t~nondet40;havoc test_#t~nondet40; 543#L518 assume !(0 != test_~tmp___0~1); 541#L518-1 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 540#L528 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 470#L536-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 474#L405 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 498#L940 assume !(0 != ~pumpRunning~0); 464#L294 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 465#L352 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret19, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 385#L326-1 assume !(0 != ~pumpRunning~0); 384#L301 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 397#L228 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 363#L951 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 365#L951-1 [2020-11-30 00:37:06,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:06,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:37:06,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:06,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623889288] [2020-11-30 00:37:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:06,720 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:06,831 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:06,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:06,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:06,863 INFO L82 PathProgramCache]: Analyzing trace with hash -554713782, now seen corresponding path program 1 times [2020-11-30 00:37:06,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:06,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758989926] [2020-11-30 00:37:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:06,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:06,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:06,883 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:06,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:06,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1677326140, now seen corresponding path program 1 times [2020-11-30 00:37:06,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:06,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588437604] [2020-11-30 00:37:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:06,961 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 00:37:06,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588437604] [2020-11-30 00:37:06,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:37:06,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:37:06,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648669038] [2020-11-30 00:37:07,066 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-30 00:37:07,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:07,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:37:07,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:37:07,126 INFO L87 Difference]: Start difference. First operand 203 states and 293 transitions. cyclomatic complexity: 93 Second operand 5 states. [2020-11-30 00:37:07,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:07,363 INFO L93 Difference]: Finished difference Result 608 states and 873 transitions. [2020-11-30 00:37:07,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:37:07,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 608 states and 873 transitions. [2020-11-30 00:37:07,372 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 274 [2020-11-30 00:37:07,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 608 states to 608 states and 873 transitions. [2020-11-30 00:37:07,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 608 [2020-11-30 00:37:07,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 608 [2020-11-30 00:37:07,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 608 states and 873 transitions. [2020-11-30 00:37:07,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:37:07,393 INFO L691 BuchiCegarLoop]: Abstraction has 608 states and 873 transitions. [2020-11-30 00:37:07,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states and 873 transitions. [2020-11-30 00:37:07,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 399. [2020-11-30 00:37:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-11-30 00:37:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 565 transitions. [2020-11-30 00:37:07,426 INFO L714 BuchiCegarLoop]: Abstraction has 399 states and 565 transitions. [2020-11-30 00:37:07,426 INFO L594 BuchiCegarLoop]: Abstraction has 399 states and 565 transitions. [2020-11-30 00:37:07,427 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:37:07,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 399 states and 565 transitions. [2020-11-30 00:37:07,430 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 274 [2020-11-30 00:37:07,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:37:07,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:37:07,431 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:07,432 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:07,432 INFO L794 eck$LassoCheckResult]: Stem: 1291#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 1171#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1172#L264 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1288#L272 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1296#L134 assume 0 != main_~tmp~0; 1234#L105 ~switchedOnBeforeTS~0 := 0; 1235#L930 havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1299#L951-1 [2020-11-30 00:37:07,432 INFO L796 eck$LassoCheckResult]: Loop: 1299#L951-1 assume !false; 1474#L499 assume test_~splverifierCounter~0 < 4; 1475#L500 test_~tmp~4 := test_#t~nondet39;havoc test_#t~nondet39; 1485#L508 assume !(0 != test_~tmp~4); 1478#L508-1 test_~tmp___0~1 := test_#t~nondet40;havoc test_#t~nondet40; 1477#L518 assume !(0 != test_~tmp___0~1); 1473#L518-1 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 1471#L528 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1461#L536-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1506#L405 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 1504#L940 assume !(0 != ~pumpRunning~0); 1501#L294 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1498#L352 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret19, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1489#L326-1 assume !(0 != ~pumpRunning~0); 1484#L301 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 1483#L228 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1482#L951 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1481#L405-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 1480#L955 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1299#L951-1 [2020-11-30 00:37:07,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:07,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:37:07,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:07,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954956034] [2020-11-30 00:37:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:07,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:07,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:07,556 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:07,557 INFO L82 PathProgramCache]: Analyzing trace with hash -504014107, now seen corresponding path program 1 times [2020-11-30 00:37:07,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:07,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102409916] [2020-11-30 00:37:07,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:07,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:07,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:07,575 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:07,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:07,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1297698849, now seen corresponding path program 1 times [2020-11-30 00:37:07,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:07,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687391217] [2020-11-30 00:37:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:07,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:07,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:07,695 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:07,802 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-30 00:38:38,567 WARN L193 SmtUtils]: Spent 1.51 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:39:36,256 WARN L193 SmtUtils]: Spent 57.66 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:39:36,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:39:36 BoogieIcfgContainer [2020-11-30 00:39:36,508 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:39:36,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:39:36,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:39:36,509 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:39:36,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:37:05" (3/4) ... [2020-11-30 00:39:36,513 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:39:36,626 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_57bf4eca-90fc-4a49-9f19-1f1e9734b776/bin/uautomizer/witness.graphml [2020-11-30 00:39:36,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:39:36,628 INFO L168 Benchmark]: Toolchain (without parser) took 153535.22 ms. Allocated memory was 127.9 MB in the beginning and 159.4 MB in the end (delta: 31.5 MB). Free memory was 94.2 MB in the beginning and 65.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 59.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:36,638 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 79.7 MB. Free memory was 37.3 MB in the beginning and 37.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:39:36,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.39 ms. Allocated memory is still 127.9 MB. Free memory was 93.9 MB in the beginning and 92.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:36,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.11 ms. Allocated memory is still 127.9 MB. Free memory was 92.3 MB in the beginning and 88.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:36,640 INFO L168 Benchmark]: Boogie Preprocessor took 58.73 ms. Allocated memory is still 127.9 MB. Free memory was 88.9 MB in the beginning and 86.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:36,640 INFO L168 Benchmark]: RCFGBuilder took 1439.02 ms. Allocated memory is still 127.9 MB. Free memory was 86.1 MB in the beginning and 92.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:36,641 INFO L168 Benchmark]: BuchiAutomizer took 151073.57 ms. Allocated memory was 127.9 MB in the beginning and 159.4 MB in the end (delta: 31.5 MB). Free memory was 92.5 MB in the beginning and 67.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 91.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:36,642 INFO L168 Benchmark]: Witness Printer took 117.93 ms. Allocated memory is still 159.4 MB. Free memory was 67.8 MB in the beginning and 65.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:36,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 79.7 MB. Free memory was 37.3 MB in the beginning and 37.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 724.39 ms. Allocated memory is still 127.9 MB. Free memory was 93.9 MB in the beginning and 92.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.11 ms. Allocated memory is still 127.9 MB. Free memory was 92.3 MB in the beginning and 88.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.73 ms. Allocated memory is still 127.9 MB. Free memory was 88.9 MB in the beginning and 86.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1439.02 ms. Allocated memory is still 127.9 MB. Free memory was 86.1 MB in the beginning and 92.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 151073.57 ms. Allocated memory was 127.9 MB in the beginning and 159.4 MB in the end (delta: 31.5 MB). Free memory was 92.5 MB in the beginning and 67.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 91.0 MB. Max. memory is 16.1 GB. * Witness Printer took 117.93 ms. Allocated memory is still 159.4 MB. Free memory was 67.8 MB in the beginning and 65.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 399 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 150.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 150.3s. 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, 211 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 399 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 411 SDtfs, 727 SDslu, 637 SDs, 0 SdLazy, 107 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 498]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13410} State at position 1 is {NULL=13434, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=13410, NULL=13411, NULL=0, NULL=13428, NULL=13427, NULL=13435, NULL=13423, methaneLevelCritical=0, tmp=0, NULL=13429, tmp=1, NULL=0, tmp=0, NULL=13437, NULL=0, tmp___1=0, NULL=13430, NULL=13419, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20cfe46f=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5901d8f4=0, switchedOnBeforeTS=0, NULL=13431, NULL=13436, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cdbf01e=0, \result=0, NULL=13433, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bfd594e=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@764ba539=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@398bfc31=0, NULL=0, systemActive=1, waterLevel=1, \result=1, retValue_acc=1, NULL=13417, \result=1, head=0, pumpRunning=0, tmp___0=0, tmp=1, \result=0, NULL=13412, NULL=13415, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43abeaaa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22d25f12=0, NULL=13438, NULL=0, retValue_acc=1, NULL=13426, NULL=0, NULL=0, NULL=13422, NULL=0, NULL=0, NULL=13418, tmp___2=71, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=13413, NULL=13416, NULL=13421, NULL=13414, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24e1977b=0, NULL=13420, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b61a092=0, NULL=0, NULL=0, NULL=13424, NULL=13425, retValue_acc=0, NULL=13432} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L153] int waterLevel = 1; [L154] int methaneLevelCritical = 0; [L282] int pumpRunning = 0; [L283] int systemActive = 1; [L726] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L924] int switchedOnBeforeTS ; [L125] int retValue_acc ; [L126] int tmp ; [L268] int retValue_acc ; [L271] retValue_acc = 1 [L272] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L929] switchedOnBeforeTS = 0 [L489] int splverifierCounter ; [L490] int tmp ; [L491] int tmp___0 ; [L492] int tmp___1 ; [L493] int tmp___2 ; [L496] splverifierCounter = 0 Loop: [L498] COND TRUE 1 [L500] COND TRUE splverifierCounter < 4 [L506] tmp = __VERIFIER_nondet_int() [L508] COND FALSE !(\read(tmp)) [L516] tmp___0 = __VERIFIER_nondet_int() [L518] COND FALSE !(\read(tmp___0)) [L526] tmp___2 = __VERIFIER_nondet_int() [L528] COND TRUE \read(tmp___2) [L483] systemActive = 1 [L401] int retValue_acc ; [L404] retValue_acc = pumpRunning [L405] return (retValue_acc); [L938] switchedOnBeforeTS = isPumpRunning() [L294] COND FALSE !(\read(pumpRunning)) [L301] COND TRUE \read(systemActive) [L349] int tmp ; [L352] COND FALSE !(\read(pumpRunning)) [L323] int tmp ; [L326] COND FALSE !(\read(pumpRunning)) [L944] int tmp ; [L945] int tmp___0 ; [L224] int retValue_acc ; [L227] retValue_acc = waterLevel [L228] return (retValue_acc); [L949] tmp = getWaterLevel() [L951] COND TRUE tmp != 2 [L401] int retValue_acc ; [L404] retValue_acc = pumpRunning [L405] return (retValue_acc); [L953] tmp___0 = isPumpRunning() [L955] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...