./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.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_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/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 b71d0221e52ad3170b58f60abcb38413b01772c1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:55:57,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:57,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:57,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:57,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:57,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:57,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:57,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:57,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:57,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:57,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:57,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:57,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:57,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:57,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:57,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:57,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:57,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:57,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:57,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:57,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:57,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:57,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:57,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:57,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:57,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:57,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:58,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:58,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:58,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:58,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:58,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:58,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:58,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:58,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:58,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:58,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:58,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:58,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:58,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:58,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:58,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:55:58,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:58,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:58,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:58,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:58,074 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:58,074 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:55:58,074 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:55:58,075 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:55:58,075 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:55:58,075 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:55:58,076 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:55:58,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:58,077 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:58,078 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:55:58,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:58,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:58,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:58,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:55:58,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:55:58,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:55:58,079 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:58,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:58,080 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:55:58,080 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:58,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:55:58,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:58,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:58,081 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:55:58,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:58,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:58,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:58,082 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:55:58,084 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:55:58,084 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_9eaedd85-68e2-4707-b789-9817426ced46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71d0221e52ad3170b58f60abcb38413b01772c1 [2020-11-30 00:55:58,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:58,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:58,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:58,513 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:58,518 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:58,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2020-11-30 00:55:58,630 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/data/7ccfc87b9/f577bf3fae9040c08b4c0db801740ba8/FLAG2212baa35 [2020-11-30 00:55:59,391 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:59,392 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2020-11-30 00:55:59,408 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/data/7ccfc87b9/f577bf3fae9040c08b4c0db801740ba8/FLAG2212baa35 [2020-11-30 00:55:59,657 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/data/7ccfc87b9/f577bf3fae9040c08b4c0db801740ba8 [2020-11-30 00:55:59,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:59,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:59,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:59,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:59,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:59,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:59" (1/1) ... [2020-11-30 00:55:59,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e63808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:59, skipping insertion in model container [2020-11-30 00:55:59,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:59" (1/1) ... [2020-11-30 00:55:59,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:59,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:56:00,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:56:00,128 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:56:00,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:56:00,342 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:56:00,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00 WrapperNode [2020-11-30 00:56:00,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:56:00,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:56:00,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:56:00,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:56:00,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:56:00,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:56:00,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:56:00,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:56:00,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... [2020-11-30 00:56:00,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:56:00,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:56:00,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:56:00,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:56:00,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/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 00:56:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:56:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:56:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:56:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:56:01,809 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:56:01,810 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-30 00:56:01,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:01 BoogieIcfgContainer [2020-11-30 00:56:01,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:56:01,815 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:56:01,816 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:56:01,820 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:56:01,821 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:56:01,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:55:59" (1/3) ... [2020-11-30 00:56:01,823 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d093ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:56:01, skipping insertion in model container [2020-11-30 00:56:01,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:56:01,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:00" (2/3) ... [2020-11-30 00:56:01,824 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d093ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:56:01, skipping insertion in model container [2020-11-30 00:56:01,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:56:01,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:01" (3/3) ... [2020-11-30 00:56:01,827 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2020-11-30 00:56:01,876 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:56:01,876 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:56:01,876 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:56:01,876 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:56:01,877 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:56:01,877 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:56:01,877 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:56:01,877 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:56:01,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-30 00:56:01,942 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-30 00:56:01,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:01,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:01,952 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:01,953 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:01,953 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:56:01,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-30 00:56:01,960 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-30 00:56:01,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:01,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:01,961 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:01,962 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:01,968 INFO L794 eck$LassoCheckResult]: Stem: 45#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 22#L-1true havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 72#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 83#L75true main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 54#L802true assume 0 != main_~tmp~6; 65#L777true ~switchedOnBeforeTS~0 := 0; 41#L823true havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 15#L844-1true [2020-11-30 00:56:01,969 INFO L796 eck$LassoCheckResult]: Loop: 15#L844-1true assume !false; 63#L660true assume test_~splverifierCounter~0 < 4; 18#L661true test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 24#L669true assume !(0 != test_~tmp~5); 28#L669-1true test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 86#L679true assume !(0 != test_~tmp___0~1); 89#L679-1true test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 71#L689true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 78#L697-1true havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 6#L197true __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 12#L833true assume !(0 != ~pumpRunning~0); 77#L112true assume !(0 != ~systemActive~0); 88#L119true havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 53#L941true __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 10#L844true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 15#L844-1true [2020-11-30 00:56:01,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:01,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:56:01,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:01,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632717680] [2020-11-30 00:56:01,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:02,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:02,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:02,533 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:02,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:02,535 INFO L82 PathProgramCache]: Analyzing trace with hash 675287608, now seen corresponding path program 1 times [2020-11-30 00:56:02,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:02,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297216059] [2020-11-30 00:56:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:02,600 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 00:56:02,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297216059] [2020-11-30 00:56:02,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:02,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:02,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332209303] [2020-11-30 00:56:02,608 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:56:02,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:02,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:02,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:56:02,626 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2020-11-30 00:56:02,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:02,710 INFO L93 Difference]: Finished difference Result 165 states and 233 transitions. [2020-11-30 00:56:02,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:02,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 233 transitions. [2020-11-30 00:56:02,726 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2020-11-30 00:56:02,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 151 states and 218 transitions. [2020-11-30 00:56:02,744 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2020-11-30 00:56:02,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2020-11-30 00:56:02,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 218 transitions. [2020-11-30 00:56:02,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:56:02,751 INFO L691 BuchiCegarLoop]: Abstraction has 151 states and 218 transitions. [2020-11-30 00:56:02,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 218 transitions. [2020-11-30 00:56:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2020-11-30 00:56:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-11-30 00:56:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 215 transitions. [2020-11-30 00:56:02,812 INFO L714 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2020-11-30 00:56:02,813 INFO L594 BuchiCegarLoop]: Abstraction has 149 states and 215 transitions. [2020-11-30 00:56:02,813 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:56:02,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 215 transitions. [2020-11-30 00:56:02,816 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2020-11-30 00:56:02,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:02,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:02,817 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:02,817 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:02,818 INFO L794 eck$LassoCheckResult]: Stem: 317#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 297#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 298#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 343#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 328#L802 assume 0 != main_~tmp~6; 329#L777 ~switchedOnBeforeTS~0 := 0; 313#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 282#L844-1 [2020-11-30 00:56:02,818 INFO L796 eck$LassoCheckResult]: Loop: 282#L844-1 assume !false; 286#L660 assume test_~splverifierCounter~0 < 4; 336#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 300#L669 assume !(0 != test_~tmp~5); 302#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 304#L679 assume !(0 != test_~tmp___0~1); 315#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 340#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 342#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 267#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 268#L833 assume !(0 != ~pumpRunning~0); 284#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 324#L144 assume !(0 == ~pumpRunning~0); 325#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 327#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 281#L844 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 282#L844-1 [2020-11-30 00:56:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:02,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:56:02,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:02,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411862172] [2020-11-30 00:56:02,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:02,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:03,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:03,055 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:03,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:03,056 INFO L82 PathProgramCache]: Analyzing trace with hash -572531387, now seen corresponding path program 1 times [2020-11-30 00:56:03,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:03,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813247389] [2020-11-30 00:56:03,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:03,078 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 00:56:03,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813247389] [2020-11-30 00:56:03,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:03,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:56:03,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220070055] [2020-11-30 00:56:03,079 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:56:03,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:03,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:56:03,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:56:03,081 INFO L87 Difference]: Start difference. First operand 149 states and 215 transitions. cyclomatic complexity: 69 Second operand 3 states. [2020-11-30 00:56:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:03,252 INFO L93 Difference]: Finished difference Result 248 states and 343 transitions. [2020-11-30 00:56:03,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:03,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 343 transitions. [2020-11-30 00:56:03,259 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2020-11-30 00:56:03,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 248 states and 343 transitions. [2020-11-30 00:56:03,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2020-11-30 00:56:03,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2020-11-30 00:56:03,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 343 transitions. [2020-11-30 00:56:03,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:56:03,271 INFO L691 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2020-11-30 00:56:03,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 343 transitions. [2020-11-30 00:56:03,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2020-11-30 00:56:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-11-30 00:56:03,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 343 transitions. [2020-11-30 00:56:03,299 INFO L714 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2020-11-30 00:56:03,300 INFO L594 BuchiCegarLoop]: Abstraction has 248 states and 343 transitions. [2020-11-30 00:56:03,300 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:56:03,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 343 transitions. [2020-11-30 00:56:03,311 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2020-11-30 00:56:03,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:03,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:03,313 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:03,313 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, 1] [2020-11-30 00:56:03,313 INFO L794 eck$LassoCheckResult]: Stem: 719#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 697#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 698#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 754#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 731#L802 assume 0 != main_~tmp~6; 732#L777 ~switchedOnBeforeTS~0 := 0; 714#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 715#L844-1 [2020-11-30 00:56:03,314 INFO L796 eck$LassoCheckResult]: Loop: 715#L844-1 assume !false; 781#L660 assume test_~splverifierCounter~0 < 4; 780#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 779#L669 assume !(0 != test_~tmp~5); 776#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 777#L679 assume !(0 != test_~tmp___0~1); 848#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 847#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 766#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 845#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 836#L833 assume !(0 != ~pumpRunning~0); 835#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 833#L144 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 760#L949 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 710#L954 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 711#L246 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 750#L246-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 826#L252 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 823#L148 assume !(0 != processEnvironment_~tmp~0); 762#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 727#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 728#L844 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 715#L844-1 [2020-11-30 00:56:03,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:03,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:56:03,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:03,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765935946] [2020-11-30 00:56:03,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:03,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:03,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:03,494 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:03,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:03,495 INFO L82 PathProgramCache]: Analyzing trace with hash -535419311, now seen corresponding path program 1 times [2020-11-30 00:56:03,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:03,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198056129] [2020-11-30 00:56:03,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:03,600 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 00:56:03,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198056129] [2020-11-30 00:56:03,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:03,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:56:03,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415091950] [2020-11-30 00:56:03,602 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:56:03,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:03,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:56:03,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:56:03,602 INFO L87 Difference]: Start difference. First operand 248 states and 343 transitions. cyclomatic complexity: 98 Second operand 5 states. [2020-11-30 00:56:03,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:03,990 INFO L93 Difference]: Finished difference Result 923 states and 1283 transitions. [2020-11-30 00:56:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:56:03,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 923 states and 1283 transitions. [2020-11-30 00:56:04,006 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 662 [2020-11-30 00:56:04,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 923 states to 923 states and 1283 transitions. [2020-11-30 00:56:04,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 923 [2020-11-30 00:56:04,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 923 [2020-11-30 00:56:04,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 923 states and 1283 transitions. [2020-11-30 00:56:04,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:56:04,036 INFO L691 BuchiCegarLoop]: Abstraction has 923 states and 1283 transitions. [2020-11-30 00:56:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states and 1283 transitions. [2020-11-30 00:56:04,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 483. [2020-11-30 00:56:04,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-11-30 00:56:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 655 transitions. [2020-11-30 00:56:04,089 INFO L714 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2020-11-30 00:56:04,089 INFO L594 BuchiCegarLoop]: Abstraction has 483 states and 655 transitions. [2020-11-30 00:56:04,089 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:56:04,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 483 states and 655 transitions. [2020-11-30 00:56:04,093 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 354 [2020-11-30 00:56:04,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:04,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:04,099 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:04,101 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, 1, 1, 1] [2020-11-30 00:56:04,102 INFO L794 eck$LassoCheckResult]: Stem: 1915#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1888#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1889#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1958#L75 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 1925#L802 assume 0 != main_~tmp~6; 1926#L777 ~switchedOnBeforeTS~0 := 0; 1909#L823 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1910#L844-1 [2020-11-30 00:56:04,102 INFO L796 eck$LassoCheckResult]: Loop: 1910#L844-1 assume !false; 2122#L660 assume test_~splverifierCounter~0 < 4; 2121#L661 test_~tmp~5 := test_#t~nondet62;havoc test_#t~nondet62; 2120#L669 assume !(0 != test_~tmp~5); 2118#L669-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 2117#L679 assume !(0 != test_~tmp___0~1); 2115#L679-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 2114#L689 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1965#L697-1 havoc __utac_acc__Specification5_spec__2_#t~ret67;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 1860#L197 __utac_acc__Specification5_spec__2_#t~ret67 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret67;havoc __utac_acc__Specification5_spec__2_#t~ret67; 1861#L833 assume !(0 != ~pumpRunning~0); 1877#L112 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1921#L144 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1922#L949 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1904#L954 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 1905#L246 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 1914#L246-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1869#L252 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 1870#L148 assume !(0 != processEnvironment_~tmp~0); 1941#L119 havoc __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_#t~ret69, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2128#L941 __utac_acc__Specification5_spec__3_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 2127#L844 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 2126#L197-1 __utac_acc__Specification5_spec__3_#t~ret69 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret69;havoc __utac_acc__Specification5_spec__3_#t~ret69; 2125#L848 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1910#L844-1 [2020-11-30 00:56:04,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:04,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-30 00:56:04,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:04,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446538057] [2020-11-30 00:56:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,264 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:04,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:04,266 INFO L82 PathProgramCache]: Analyzing trace with hash 858102060, now seen corresponding path program 1 times [2020-11-30 00:56:04,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:04,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796757993] [2020-11-30 00:56:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,285 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,291 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:04,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:04,293 INFO L82 PathProgramCache]: Analyzing trace with hash 717508722, now seen corresponding path program 1 times [2020-11-30 00:56:04,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:04,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478795924] [2020-11-30 00:56:04,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,459 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:04,690 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-30 00:56:04,830 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-30 00:57:32,754 WARN L193 SmtUtils]: Spent 1.47 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:58:40,002 WARN L193 SmtUtils]: Spent 1.12 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:58:40,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:58:40 BoogieIcfgContainer [2020-11-30 00:58:40,161 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:58:40,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:58:40,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:58:40,162 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:58:40,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:01" (3/4) ... [2020-11-30 00:58:40,166 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:58:40,236 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9eaedd85-68e2-4707-b789-9817426ced46/bin/uautomizer/witness.graphml [2020-11-30 00:58:40,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:58:40,238 INFO L168 Benchmark]: Toolchain (without parser) took 160576.39 ms. Allocated memory was 79.7 MB in the beginning and 123.7 MB in the end (delta: 44.0 MB). Free memory was 48.5 MB in the beginning and 70.7 MB in the end (delta: -22.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:40,239 INFO L168 Benchmark]: CDTParser took 4.23 ms. Allocated memory is still 79.7 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:58:40,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.60 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 48.3 MB in the beginning and 67.3 MB in the end (delta: -19.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:40,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.61 ms. Allocated memory is still 100.7 MB. Free memory was 67.3 MB in the beginning and 64.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:40,242 INFO L168 Benchmark]: Boogie Preprocessor took 97.89 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 61.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:40,242 INFO L168 Benchmark]: RCFGBuilder took 1240.80 ms. Allocated memory is still 100.7 MB. Free memory was 61.6 MB in the beginning and 48.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:40,243 INFO L168 Benchmark]: BuchiAutomizer took 158346.04 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 48.0 MB in the beginning and 72.8 MB in the end (delta: -24.8 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:40,244 INFO L168 Benchmark]: Witness Printer took 74.93 ms. Allocated memory is still 123.7 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:40,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.23 ms. Allocated memory is still 79.7 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 681.60 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 48.3 MB in the beginning and 67.3 MB in the end (delta: -19.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 126.61 ms. Allocated memory is still 100.7 MB. Free memory was 67.3 MB in the beginning and 64.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.89 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 61.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1240.80 ms. Allocated memory is still 100.7 MB. Free memory was 61.6 MB in the beginning and 48.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 158346.04 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 48.0 MB in the beginning and 72.8 MB in the end (delta: -24.8 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. * Witness Printer took 74.93 ms. Allocated memory is still 123.7 MB. Free memory was 72.8 MB in the beginning and 70.7 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 483 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 158.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 157.2s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 442 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 483 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 404 SDtfs, 684 SDslu, 647 SDs, 0 SdLazy, 136 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 659]: 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=2785, NULL=0, retValue_acc=1, NULL=1, NULL=2798, NULL=2794, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ca2fe93=0, NULL=2780, NULL=2792, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=2802, NULL=0, cleanupTimeShifts=4, NULL=2799, NULL=2786, NULL=0, waterLevel=1, NULL=2793, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68463e3d=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=2790, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8de37a4=0, tmp=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=2782, tmp=1, NULL=0, NULL=0, tmp___0=0, NULL=2791, tmp=0, NULL=2784, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9d5e14f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c0b1573=0, head=0, NULL=2803, NULL=2779, NULL=0, retValue_acc=0, NULL=2783, tmp=1, tmp___0=0, NULL=0, switchedOnBeforeTS=0, NULL=2800, NULL=2787, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=2797, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d13e11d=0, NULL=2777, tmp___0=0, NULL=2789, \result=0, NULL=2801, NULL=0, NULL=0, NULL=0, NULL=2796, NULL=2781, NULL=2804, retValue_acc=1, tmp___2=74, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=2778, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bd88cd0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26976530=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e7a0e1b=0, NULL=2795, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@581bfadd=0, NULL=0, NULL=0, NULL=2788, NULL=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L449] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L718] int cleanupTimeShifts = 4; [L817] int switchedOnBeforeTS ; [L866] int waterLevel = 1; [L867] int methaneLevelCritical = 0; [L793] int retValue_acc ; [L794] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) [L822] switchedOnBeforeTS = 0 [L650] int splverifierCounter ; [L651] int tmp ; [L652] int tmp___0 ; [L653] int tmp___1 ; [L654] int tmp___2 ; [L657] splverifierCounter = 0 Loop: [L659] COND TRUE 1 [L661] COND TRUE splverifierCounter < 4 [L667] tmp = __VERIFIER_nondet_int() [L669] COND FALSE !(\read(tmp)) [L677] tmp___0 = __VERIFIER_nondet_int() [L679] COND FALSE !(\read(tmp___0)) [L687] tmp___2 = __VERIFIER_nondet_int() [L689] COND TRUE \read(tmp___2) [L275] systemActive = 1 [L193] int retValue_acc ; [L196] retValue_acc = pumpRunning [L197] return (retValue_acc); [L831] switchedOnBeforeTS = isPumpRunning() [L112] COND FALSE !(\read(pumpRunning)) [L119] COND TRUE \read(systemActive) [L141] int tmp ; [L144] COND TRUE ! pumpRunning [L238] int retValue_acc ; [L239] int tmp ; [L240] int tmp___0 ; [L946] int retValue_acc ; [L949] COND TRUE waterLevel < 2 [L950] retValue_acc = 1 [L951] return (retValue_acc); [L244] tmp = isHighWaterSensorDry() [L246] COND TRUE \read(tmp) [L247] tmp___0 = 0 [L251] retValue_acc = tmp___0 [L252] return (retValue_acc); [L146] tmp = isHighWaterLevel() [L148] COND FALSE !(\read(tmp)) [L837] int tmp ; [L838] int tmp___0 ; [L937] int retValue_acc ; [L940] retValue_acc = waterLevel [L941] return (retValue_acc); [L842] tmp = getWaterLevel() [L844] COND TRUE tmp != 2 [L193] int retValue_acc ; [L196] retValue_acc = pumpRunning [L197] return (retValue_acc); [L846] tmp___0 = isPumpRunning() [L848] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...