./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product38.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_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/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 1793ccd9e2f375623df96533ad239f61347f357b ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:58:24,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:58:24,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:58:24,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:58:24,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:58:24,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:58:24,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:58:24,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:58:24,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:58:24,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:58:24,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:58:24,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:58:24,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:58:24,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:58:24,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:58:24,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:58:24,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:58:24,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:58:24,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:58:24,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:58:24,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:58:24,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:58:24,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:58:24,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:58:24,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:58:24,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:58:24,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:58:24,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:58:24,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:58:24,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:58:24,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:58:24,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:58:24,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:58:24,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:58:24,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:58:24,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:58:24,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:58:24,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:58:24,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:58:24,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:58:24,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:58:24,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:58:24,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:58:24,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:58:24,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:58:24,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:58:24,571 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:58:24,571 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:58:24,572 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:58:24,572 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:58:24,572 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:58:24,572 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:58:24,574 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:58:24,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:58:24,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:58:24,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:58:24,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:58:24,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:58:24,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:58:24,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:58:24,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:58:24,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:58:24,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:58:24,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:58:24,577 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:58:24,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:58:24,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:58:24,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:58:24,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:58:24,578 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:58:24,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:58:24,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:58:24,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:58:24,579 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:58:24,581 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:58:24,582 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_4b60be98-f317-4f61-bf50-b9eef64354cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1793ccd9e2f375623df96533ad239f61347f357b [2020-11-30 00:58:24,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:58:24,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:58:24,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:58:24,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:58:24,934 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:58:24,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2020-11-30 00:58:25,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/data/70e4a3e8b/d944766841154a0c8904737e25316db3/FLAG4cda0dafc [2020-11-30 00:58:25,709 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:58:25,710 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2020-11-30 00:58:25,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/data/70e4a3e8b/d944766841154a0c8904737e25316db3/FLAG4cda0dafc [2020-11-30 00:58:25,972 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/data/70e4a3e8b/d944766841154a0c8904737e25316db3 [2020-11-30 00:58:25,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:58:25,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:58:25,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:25,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:58:25,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:58:25,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:25" (1/1) ... [2020-11-30 00:58:25,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80c12d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:25, skipping insertion in model container [2020-11-30 00:58:25,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:25" (1/1) ... [2020-11-30 00:58:26,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:58:26,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:26,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:26,643 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:58:26,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:26,831 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:58:26,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26 WrapperNode [2020-11-30 00:58:26,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:26,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:26,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:58:26,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:58:26,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:26,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:26,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:26,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:58:26,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:58:26,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:58:26,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:26,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:26,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:26,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:26,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:27,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:27,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... [2020-11-30 00:58:27,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:58:27,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:58:27,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:58:27,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:58:27,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/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 00:58:27,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:58:27,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:58:27,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:58:27,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:58:28,311 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:58:28,312 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-11-30 00:58:28,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:28 BoogieIcfgContainer [2020-11-30 00:58:28,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:58:28,317 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:58:28,318 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:58:28,324 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:58:28,325 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:28,325 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:58:25" (1/3) ... [2020-11-30 00:58:28,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e24d862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:58:28, skipping insertion in model container [2020-11-30 00:58:28,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:28,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:26" (2/3) ... [2020-11-30 00:58:28,332 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e24d862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:58:28, skipping insertion in model container [2020-11-30 00:58:28,333 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:28,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:28" (3/3) ... [2020-11-30 00:58:28,336 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2020-11-30 00:58:28,392 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:58:28,393 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:58:28,393 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:58:28,393 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:58:28,393 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:58:28,394 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:58:28,394 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:58:28,394 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:58:28,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-30 00:58:28,439 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-30 00:58:28,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:28,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:28,450 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:28,450 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:28,451 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:58:28,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-30 00:58:28,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-30 00:58:28,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:28,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:28,460 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:28,461 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:28,467 INFO L794 eck$LassoCheckResult]: Stem: 93#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 11#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; 60#L168true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 82#L176true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 98#L132true assume 0 != main_~tmp~0; 40#L105true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 108#L192-1true [2020-11-30 00:58:28,467 INFO L796 eck$LassoCheckResult]: Loop: 108#L192-1true assume !false; 88#L779true assume test_~splverifierCounter~0 < 4; 23#L780true test_~tmp~8 := test_#t~nondet66;havoc test_#t~nondet66; 24#L788true assume !(0 != test_~tmp~8); 26#L788-1true test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 92#L798true assume !(0 != test_~tmp___0~2); 94#L798-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 15#L808true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 17#L816-2true assume !(0 != ~pumpRunning~0); 84#L589true assume !(0 != ~systemActive~0); 12#L596true havoc __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 5#L888-1true __utac_acc__Specification1_spec__1_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret9;havoc __utac_acc__Specification1_spec__1_#t~ret9; 111#L192true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 108#L192-1true [2020-11-30 00:58:28,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:28,474 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:58:28,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:28,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676990634] [2020-11-30 00:58:28,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:28,786 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:28,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:29,030 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:29,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:29,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1679036347, now seen corresponding path program 1 times [2020-11-30 00:58:29,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:29,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489065010] [2020-11-30 00:58:29,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:29,136 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 00:58:29,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489065010] [2020-11-30 00:58:29,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:29,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:29,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999644273] [2020-11-30 00:58:29,145 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:58:29,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:29,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:29,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:29,172 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2020-11-30 00:58:29,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:29,257 INFO L93 Difference]: Finished difference Result 108 states and 155 transitions. [2020-11-30 00:58:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:29,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 155 transitions. [2020-11-30 00:58:29,270 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-30 00:58:29,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 147 transitions. [2020-11-30 00:58:29,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2020-11-30 00:58:29,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2020-11-30 00:58:29,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 147 transitions. [2020-11-30 00:58:29,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:58:29,300 INFO L691 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-30 00:58:29,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 147 transitions. [2020-11-30 00:58:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-11-30 00:58:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-30 00:58:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2020-11-30 00:58:29,366 INFO L714 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-30 00:58:29,366 INFO L594 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-30 00:58:29,366 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:58:29,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 147 transitions. [2020-11-30 00:58:29,373 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-30 00:58:29,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:29,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:29,374 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:29,374 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:29,375 INFO L794 eck$LassoCheckResult]: Stem: 325#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 246#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; 247#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 309#L176 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 321#L132 assume 0 != main_~tmp~0; 290#L105 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 291#L192-1 [2020-11-30 00:58:29,375 INFO L796 eck$LassoCheckResult]: Loop: 291#L192-1 assume !false; 322#L779 assume test_~splverifierCounter~0 < 4; 263#L780 test_~tmp~8 := test_#t~nondet66;havoc test_#t~nondet66; 264#L788 assume !(0 != test_~tmp~8); 260#L788-1 test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 267#L798 assume !(0 != test_~tmp___0~2); 323#L798-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 251#L808 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 252#L816-2 assume !(0 != ~pumpRunning~0); 255#L589 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 313#L647 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 235#L621-1 assume !(0 == ~pumpRunning~0); 232#L596 havoc __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 233#L888-1 __utac_acc__Specification1_spec__1_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret9;havoc __utac_acc__Specification1_spec__1_#t~ret9; 234#L192 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 291#L192-1 [2020-11-30 00:58:29,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:29,376 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:58:29,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:29,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384039599] [2020-11-30 00:58:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:29,495 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:29,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:29,624 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:29,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:29,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1086510020, now seen corresponding path program 1 times [2020-11-30 00:58:29,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:29,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108303396] [2020-11-30 00:58:29,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:29,663 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 00:58:29,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108303396] [2020-11-30 00:58:29,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:29,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:29,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639679516] [2020-11-30 00:58:29,664 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:58:29,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:29,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:29,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:29,666 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. cyclomatic complexity: 48 Second operand 3 states. [2020-11-30 00:58:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:29,854 INFO L93 Difference]: Finished difference Result 142 states and 195 transitions. [2020-11-30 00:58:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:29,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 195 transitions. [2020-11-30 00:58:29,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2020-11-30 00:58:29,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 142 states and 195 transitions. [2020-11-30 00:58:29,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2020-11-30 00:58:29,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2020-11-30 00:58:29,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 195 transitions. [2020-11-30 00:58:29,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:58:29,864 INFO L691 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-30 00:58:29,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 195 transitions. [2020-11-30 00:58:29,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-11-30 00:58:29,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-30 00:58:29,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2020-11-30 00:58:29,874 INFO L714 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-30 00:58:29,875 INFO L594 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-30 00:58:29,875 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:58:29,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 195 transitions. [2020-11-30 00:58:29,877 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2020-11-30 00:58:29,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:29,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:29,878 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:58:29,878 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:29,878 INFO L794 eck$LassoCheckResult]: Stem: 580#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 495#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; 496#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 563#L176 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 575#L132 assume 0 != main_~tmp~0; 541#L105 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 542#L192-1 [2020-11-30 00:58:29,879 INFO L796 eck$LassoCheckResult]: Loop: 542#L192-1 assume !false; 577#L779 assume test_~splverifierCounter~0 < 4; 514#L780 test_~tmp~8 := test_#t~nondet66;havoc test_#t~nondet66; 515#L788 assume !(0 != test_~tmp~8); 511#L788-1 test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 518#L798 assume !(0 != test_~tmp___0~2); 578#L798-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 501#L808 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 502#L816-2 assume !(0 != ~pumpRunning~0); 506#L589 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 567#L647 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 484#L621-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 485#L928-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 566#L933-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 565#L749-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 547#L749-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 521#L755-1 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 522#L625-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 497#L596 havoc __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 482#L888-1 __utac_acc__Specification1_spec__1_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret9;havoc __utac_acc__Specification1_spec__1_#t~ret9; 483#L192 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 542#L192-1 [2020-11-30 00:58:29,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:29,880 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:58:29,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:29,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429598976] [2020-11-30 00:58:29,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:29,923 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:30,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:30,027 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:30,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:30,029 INFO L82 PathProgramCache]: Analyzing trace with hash -849194648, now seen corresponding path program 1 times [2020-11-30 00:58:30,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:30,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138832823] [2020-11-30 00:58:30,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:30,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:30,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:30,069 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:30,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:30,071 INFO L82 PathProgramCache]: Analyzing trace with hash -393123454, now seen corresponding path program 1 times [2020-11-30 00:58:30,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:30,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283083890] [2020-11-30 00:58:30,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:30,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:30,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:30,227 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:30,380 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 01:00:09,229 WARN L193 SmtUtils]: Spent 1.65 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:01:20,101 WARN L193 SmtUtils]: Spent 1.18 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:01:20,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:01:20 BoogieIcfgContainer [2020-11-30 01:01:20,345 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:01:20,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:01:20,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:01:20,346 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:01:20,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:28" (3/4) ... [2020-11-30 01:01:20,351 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:01:20,429 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4b60be98-f317-4f61-bf50-b9eef64354cb/bin/uautomizer/witness.graphml [2020-11-30 01:01:20,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:01:20,431 INFO L168 Benchmark]: Toolchain (without parser) took 174453.43 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 63.4 MB in the beginning and 76.0 MB in the end (delta: -12.6 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:20,432 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 94.4 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:01:20,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 852.17 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 63.0 MB in the beginning and 80.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:20,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.75 ms. Allocated memory is still 113.2 MB. Free memory was 80.1 MB in the beginning and 76.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:20,434 INFO L168 Benchmark]: Boogie Preprocessor took 80.11 ms. Allocated memory is still 113.2 MB. Free memory was 76.6 MB in the beginning and 74.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:20,435 INFO L168 Benchmark]: RCFGBuilder took 1287.31 ms. Allocated memory is still 113.2 MB. Free memory was 73.9 MB in the beginning and 69.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:20,435 INFO L168 Benchmark]: BuchiAutomizer took 172027.75 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 69.0 MB in the beginning and 78.1 MB in the end (delta: -9.0 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:20,436 INFO L168 Benchmark]: Witness Printer took 83.93 ms. Allocated memory is still 142.6 MB. Free memory was 78.1 MB in the beginning and 76.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:01:20,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 94.4 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 852.17 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 63.0 MB in the beginning and 80.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.75 ms. Allocated memory is still 113.2 MB. Free memory was 80.1 MB in the beginning and 76.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.11 ms. Allocated memory is still 113.2 MB. Free memory was 76.6 MB in the beginning and 74.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1287.31 ms. Allocated memory is still 113.2 MB. Free memory was 73.9 MB in the beginning and 69.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 172027.75 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 69.0 MB in the beginning and 78.1 MB in the end (delta: -9.0 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. * Witness Printer took 83.93 ms. Allocated memory is still 142.6 MB. Free memory was 78.1 MB in the beginning and 76.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 142 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 171.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 171.4s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 142 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 301 SDtfs, 255 SDslu, 57 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 778]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=1, NULL=40637, NULL=0, NULL=0, NULL=0, NULL=40636, NULL=40634, methaneLevelCritical=0, NULL=40622, retValue_acc=0, tmp=0, tmp___1=0, NULL=40624, NULL=0, NULL=40645, cleanupTimeShifts=4, NULL=40628, waterLevel=1, NULL=0, NULL=0, NULL=40632, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77c685c8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@aea59d9=0, NULL=40642, \result=1, head=0, pumpRunning=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20e9fd2c=0, NULL=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=0, NULL=40638, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=21680, NULL=40641, head=0, tmp=0, NULL=40623, NULL=0, NULL=0, NULL=40629, NULL=40640, NULL=0, retValue_acc=0, NULL=0, NULL=40626, NULL=0, NULL=40644, tmp___0=0, NULL=40627, NULL=0, tmp___0=0, NULL=40620, NULL=40625, NULL=40633, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ade59b=0, tmp=0, NULL=0, NULL=0, systemActive=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a82f9b9=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=21679, \result=0, NULL=40630, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48ed2551=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dc59945=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@147fd2e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@494df40e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4836e8db=0, NULL=40639, NULL=40631, retValue_acc=1, tmp___2=69, retValue_acc=1, splverifierCounter=0, NULL=0, \result=0, NULL=40635, NULL=40621, NULL=40643} - 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; [L379] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L769] int splverifierCounter ; [L770] int tmp ; [L771] int tmp___0 ; [L772] int tmp___1 ; [L773] int tmp___2 ; [L776] splverifierCounter = 0 Loop: [L778] COND TRUE 1 [L780] COND TRUE splverifierCounter < 4 [L786] tmp = __VERIFIER_nondet_int() [L788] COND FALSE !(\read(tmp)) [L796] tmp___0 = __VERIFIER_nondet_int() [L798] COND FALSE !(\read(tmp___0)) [L806] tmp___2 = __VERIFIER_nondet_int() [L808] COND TRUE \read(tmp___2) [L763] systemActive = 1 [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L925] int retValue_acc ; [L928] COND TRUE waterLevel < 2 [L929] retValue_acc = 1 [L930] return (retValue_acc); [L747] tmp = isHighWaterSensorDry() [L749] COND TRUE \read(tmp) [L750] tmp___0 = 0 [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); [L623] tmp = isHighWaterLevel() [L625] COND FALSE !(\read(tmp)) [L185] int tmp ; [L186] int tmp___0 ; [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...