./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.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_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/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 d6e0df2899d65d0508b73b519bfb92548746b7db ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:40:39,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:40:39,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:40:39,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:40:39,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:40:39,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:40:39,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:40:39,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:40:39,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:40:39,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:40:39,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:40:39,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:40:39,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:40:39,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:40:39,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:40:39,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:40:39,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:40:39,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:40:39,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:40:39,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:40:39,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:40:39,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:40:39,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:40:39,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:40:39,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:40:39,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:40:39,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:40:39,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:40:39,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:40:39,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:40:39,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:40:39,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:40:39,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:40:39,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:40:39,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:40:39,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:40:39,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:40:39,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:40:39,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:40:40,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:40:40,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:40:40,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:40:40,043 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:40:40,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:40:40,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:40:40,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:40:40,046 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:40:40,046 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:40:40,046 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:40:40,046 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:40:40,046 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:40:40,047 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:40:40,048 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:40:40,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:40:40,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:40:40,049 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:40:40,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:40:40,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:40:40,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:40:40,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:40:40,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:40:40,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:40:40,050 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:40:40,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:40:40,050 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:40:40,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:40:40,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:40:40,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:40:40,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:40:40,052 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:40:40,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:40:40,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:40:40,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:40:40,053 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:40:40,054 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:40:40,054 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_84421b74-a2a3-485c-807c-533e2d69eeff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6e0df2899d65d0508b73b519bfb92548746b7db [2020-11-30 00:40:40,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:40:40,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:40:40,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:40:40,421 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:40:40,424 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:40:40,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2020-11-30 00:40:40,494 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/data/71a47388d/4d4cb646450b4c6d94a938b08cb2578b/FLAG16a43f669 [2020-11-30 00:40:41,107 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:40:41,108 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2020-11-30 00:40:41,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/data/71a47388d/4d4cb646450b4c6d94a938b08cb2578b/FLAG16a43f669 [2020-11-30 00:40:41,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/data/71a47388d/4d4cb646450b4c6d94a938b08cb2578b [2020-11-30 00:40:41,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:40:41,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:40:41,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:40:41,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:40:41,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:40:41,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:41,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd1a6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41, skipping insertion in model container [2020-11-30 00:40:41,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:41,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:40:41,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:40:41,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:40:41,795 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:40:41,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:40:41,972 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:40:41,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41 WrapperNode [2020-11-30 00:40:41,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:40:41,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:40:41,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:40:41,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:40:41,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:40:42,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:40:42,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:40:42,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:40:42,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... [2020-11-30 00:40:42,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:40:42,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:40:42,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:40:42,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:40:42,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/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 00:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:40:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:40:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:40:42,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:40:43,273 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:40:43,273 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-11-30 00:40:43,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:40:43 BoogieIcfgContainer [2020-11-30 00:40:43,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:40:43,276 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:40:43,276 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:40:43,280 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:40:43,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:40:43,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:40:41" (1/3) ... [2020-11-30 00:40:43,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ff2f942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:40:43, skipping insertion in model container [2020-11-30 00:40:43,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:40:43,283 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:41" (2/3) ... [2020-11-30 00:40:43,283 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ff2f942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:40:43, skipping insertion in model container [2020-11-30 00:40:43,283 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:40:43,283 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:40:43" (3/3) ... [2020-11-30 00:40:43,285 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product27.cil.c [2020-11-30 00:40:43,331 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:40:43,331 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:40:43,331 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:40:43,332 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:40:43,332 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:40:43,332 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:40:43,332 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:40:43,332 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:40:43,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-11-30 00:40:43,377 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 00:40:43,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:40:43,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:40:43,385 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:43,385 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:43,386 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:40:43,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-11-30 00:40:43,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 00:40:43,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:40:43,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:40:43,393 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:43,393 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:43,399 INFO L794 eck$LassoCheckResult]: Stem: 40#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~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #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(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 15#L-1true havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 74#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; 84#L75true main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 50#L688true assume 0 != main_~tmp~4; 62#L663true ~switchedOnBeforeTS~0 := 0; 75#L89true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, 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; 49#L110-1true [2020-11-30 00:40:43,400 INFO L796 eck$LassoCheckResult]: Loop: 49#L110-1true assume !false; 68#L714true assume test_~splverifierCounter~0 < 4; 80#L715true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 82#L723true assume !(0 != test_~tmp~5); 85#L723-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 70#L733true assume !(0 != test_~tmp___0~1); 71#L733-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 46#L743true assume 0 != test_~tmp___2~0; 7#L749-1true havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 33#L885true __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 51#L99true assume !(0 != ~pumpRunning~0); 4#L782true assume !(0 != ~systemActive~0); 11#L789true havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 58#L579true __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 52#L110true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 49#L110-1true [2020-11-30 00:40:43,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:43,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:40:43,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:43,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23620440] [2020-11-30 00:40:43,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:43,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:43,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:43,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:40:43,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:43,967 INFO L82 PathProgramCache]: Analyzing trace with hash -241953449, now seen corresponding path program 1 times [2020-11-30 00:40:43,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:43,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817130089] [2020-11-30 00:40:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:43,989 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:43,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:44,009 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:40:44,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:44,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1692071761, now seen corresponding path program 1 times [2020-11-30 00:40:44,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:44,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962594131] [2020-11-30 00:40:44,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:40:44,219 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 00:40:44,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962594131] [2020-11-30 00:40:44,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:40:44,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:40:44,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679053884] [2020-11-30 00:40:44,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:40:44,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:40:44,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:40:44,379 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 6 states. [2020-11-30 00:40:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:40:44,702 INFO L93 Difference]: Finished difference Result 217 states and 298 transitions. [2020-11-30 00:40:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:40:44,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 298 transitions. [2020-11-30 00:40:44,719 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 139 [2020-11-30 00:40:44,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 196 states and 277 transitions. [2020-11-30 00:40:44,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2020-11-30 00:40:44,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2020-11-30 00:40:44,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 277 transitions. [2020-11-30 00:40:44,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:40:44,745 INFO L691 BuchiCegarLoop]: Abstraction has 196 states and 277 transitions. [2020-11-30 00:40:44,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 277 transitions. [2020-11-30 00:40:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 125. [2020-11-30 00:40:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-30 00:40:44,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2020-11-30 00:40:44,790 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2020-11-30 00:40:44,790 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2020-11-30 00:40:44,790 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:40:44,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 176 transitions. [2020-11-30 00:40:44,793 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2020-11-30 00:40:44,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:40:44,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:40:44,794 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:44,794 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 00:40:44,794 INFO L794 eck$LassoCheckResult]: Stem: 375#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~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #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(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 344#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 345#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; 394#L75 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 382#L688 assume 0 != main_~tmp~4; 383#L663 ~switchedOnBeforeTS~0 := 0; 390#L89 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, 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; 362#L110-1 [2020-11-30 00:40:44,795 INFO L796 eck$LassoCheckResult]: Loop: 362#L110-1 assume !false; 381#L714 assume test_~splverifierCounter~0 < 4; 392#L715 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 397#L723 assume !(0 != test_~tmp~5); 340#L723-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 393#L733 assume !(0 != test_~tmp___0~1); 365#L733-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 378#L743 assume 0 != test_~tmp___2~0; 329#L749-1 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 330#L885 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 368#L99 assume !(0 != ~pumpRunning~0); 323#L782 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 324#L814 assume !(0 != ~pumpRunning~0); 337#L789 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 338#L579 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 385#L110 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 362#L110-1 [2020-11-30 00:40:44,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:44,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:40:44,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:44,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898165165] [2020-11-30 00:40:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:44,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:44,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:44,917 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:40:44,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:44,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1062384517, now seen corresponding path program 1 times [2020-11-30 00:40:44,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:44,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59187751] [2020-11-30 00:40:44,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:44,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:44,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:44,945 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:40:44,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:44,946 INFO L82 PathProgramCache]: Analyzing trace with hash 887623883, now seen corresponding path program 1 times [2020-11-30 00:40:44,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:44,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652613931] [2020-11-30 00:40:44,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:40:45,040 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 00:40:45,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652613931] [2020-11-30 00:40:45,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:40:45,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:40:45,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25619345] [2020-11-30 00:40:45,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:40:45,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:40:45,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:40:45,141 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. cyclomatic complexity: 54 Second operand 5 states. [2020-11-30 00:40:45,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:40:45,362 INFO L93 Difference]: Finished difference Result 338 states and 468 transitions. [2020-11-30 00:40:45,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:40:45,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 468 transitions. [2020-11-30 00:40:45,372 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2020-11-30 00:40:45,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 468 transitions. [2020-11-30 00:40:45,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2020-11-30 00:40:45,385 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2020-11-30 00:40:45,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 468 transitions. [2020-11-30 00:40:45,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:40:45,395 INFO L691 BuchiCegarLoop]: Abstraction has 338 states and 468 transitions. [2020-11-30 00:40:45,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 468 transitions. [2020-11-30 00:40:45,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 243. [2020-11-30 00:40:45,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-11-30 00:40:45,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 331 transitions. [2020-11-30 00:40:45,423 INFO L714 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2020-11-30 00:40:45,423 INFO L594 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2020-11-30 00:40:45,423 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:40:45,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 331 transitions. [2020-11-30 00:40:45,426 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2020-11-30 00:40:45,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:40:45,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:40:45,427 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:45,427 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:45,427 INFO L794 eck$LassoCheckResult]: Stem: 859#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~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #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(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 825#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 826#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; 885#L75 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 869#L688 assume 0 != main_~tmp~4; 870#L663 ~switchedOnBeforeTS~0 := 0; 877#L89 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, 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; 843#L110-1 [2020-11-30 00:40:45,428 INFO L796 eck$LassoCheckResult]: Loop: 843#L110-1 assume !false; 867#L714 assume test_~splverifierCounter~0 < 4; 880#L715 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 891#L723 assume !(0 != test_~tmp~5); 892#L723-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 882#L733 assume !(0 != test_~tmp___0~1); 846#L733-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 865#L743 assume 0 != test_~tmp___2~0; 808#L749-1 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 809#L885 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 849#L99 assume !(0 != ~pumpRunning~0); 802#L782 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 803#L814 assume !(0 != ~pumpRunning~0); 816#L789 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 817#L579 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 871#L110 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 823#L885-1 __utac_acc__Specification5_spec__3_#t~ret10 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret10;havoc __utac_acc__Specification5_spec__3_#t~ret10; 824#L114 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 843#L110-1 [2020-11-30 00:40:45,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:45,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:40:45,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:45,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684503491] [2020-11-30 00:40:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:45,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:45,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:45,566 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:40:45,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:45,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1250711392, now seen corresponding path program 1 times [2020-11-30 00:40:45,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:45,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834755365] [2020-11-30 00:40:45,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:45,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:45,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:45,586 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:40:45,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:45,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1691956122, now seen corresponding path program 1 times [2020-11-30 00:40:45,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:45,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044546030] [2020-11-30 00:40:45,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:45,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:40:45,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:40:45,717 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:40:45,857 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-30 00:42:04,143 WARN L193 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:42:55,340 WARN L193 SmtUtils]: Spent 51.15 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:42:55,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:42:55 BoogieIcfgContainer [2020-11-30 00:42:55,611 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:42:55,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:42:55,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:42:55,616 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:42:55,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:40:43" (3/4) ... [2020-11-30 00:42:55,620 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:42:55,666 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_84421b74-a2a3-485c-807c-533e2d69eeff/bin/uautomizer/witness.graphml [2020-11-30 00:42:55,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:42:55,667 INFO L168 Benchmark]: Toolchain (without parser) took 134276.08 ms. Allocated memory was 102.8 MB in the beginning and 167.8 MB in the end (delta: 65.0 MB). Free memory was 79.3 MB in the beginning and 122.0 MB in the end (delta: -42.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:55,668 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 77.6 MB. Free memory is still 42.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:42:55,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.10 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 69.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:55,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.72 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 67.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:55,670 INFO L168 Benchmark]: Boogie Preprocessor took 73.72 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 64.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:55,670 INFO L168 Benchmark]: RCFGBuilder took 1146.29 ms. Allocated memory is still 102.8 MB. Free memory was 64.6 MB in the beginning and 44.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:55,671 INFO L168 Benchmark]: BuchiAutomizer took 132339.08 ms. Allocated memory was 102.8 MB in the beginning and 167.8 MB in the end (delta: 65.0 MB). Free memory was 44.1 MB in the beginning and 125.2 MB in the end (delta: -81.1 MB). Peak memory consumption was 70.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:55,671 INFO L168 Benchmark]: Witness Printer took 50.26 ms. Allocated memory is still 167.8 MB. Free memory was 125.2 MB in the beginning and 122.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:55,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 77.6 MB. Free memory is still 42.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 581.10 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 69.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.72 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 67.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.72 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 64.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1146.29 ms. Allocated memory is still 102.8 MB. Free memory was 64.6 MB in the beginning and 44.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 132339.08 ms. Allocated memory was 102.8 MB in the beginning and 167.8 MB in the end (delta: 65.0 MB). Free memory was 44.1 MB in the beginning and 125.2 MB in the end (delta: -81.1 MB). Peak memory consumption was 70.9 MB. Max. memory is 16.1 GB. * Witness Printer took 50.26 ms. Allocated memory is still 167.8 MB. Free memory was 125.2 MB in the beginning and 122.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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 6 locations. The remainder module has 243 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 132.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 131.4s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 243 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 278 SDtfs, 766 SDslu, 923 SDs, 0 SdLazy, 124 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 713]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=26523} State at position 1 is {NULL=0, NULL=0, NULL=26538, NULL=26523, NULL=0, NULL=26543, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@181fa765=0, NULL=0, NULL=26535, retValue_acc=0, NULL=0, NULL=0, NULL=26537, methaneLevelCritical=0, NULL=0, NULL=0, tmp=0, NULL=26545, NULL=26534, NULL=0, tmp___1=0, NULL=26526, tmp=1, NULL=0, NULL=0, NULL=26551, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ed7892a=0, retValue_acc=0, cleanupTimeShifts=4, NULL=26540, switchedOnBeforeTS=0, NULL=26524, NULL=26544, \result=0, NULL=26533, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=26549, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=26531, NULL=0, NULL=0, NULL=26528, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=26530, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=26542, NULL=0, NULL=0, NULL=0, NULL=26539, NULL=26532, NULL=0, NULL=26525, retValue_acc=1, retValue_acc=1, tmp___2=61, NULL=0, NULL=26550, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15e995d3=0, NULL=26536, NULL=26527, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@537d3aa4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2648da42=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f9459fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@701d5bfd=0, head=0, tmp=0, NULL=26529, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35b7be42=0, NULL=26547, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64a338e1=0, NULL=26546, NULL=26548, NULL=26541} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L83] int switchedOnBeforeTS ; [L301] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L602] int cleanupTimeShifts = 4; [L772] int pumpRunning = 0; [L773] int systemActive = 1; [L679] int retValue_acc ; [L680] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L686] tmp = valid_product() [L688] COND TRUE \read(tmp) [L88] switchedOnBeforeTS = 0 [L704] int splverifierCounter ; [L705] int tmp ; [L706] int tmp___0 ; [L707] int tmp___1 ; [L708] int tmp___2 ; [L711] splverifierCounter = 0 Loop: [L713] COND TRUE 1 [L715] COND TRUE splverifierCounter < 4 [L721] tmp = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp)) [L731] tmp___0 = __VERIFIER_nondet_int() [L733] COND FALSE !(\read(tmp___0)) [L741] tmp___2 = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp___2) [L881] int retValue_acc ; [L884] retValue_acc = pumpRunning [L885] return (retValue_acc); [L97] switchedOnBeforeTS = isPumpRunning() [L782] COND FALSE !(\read(pumpRunning)) [L789] COND TRUE \read(systemActive) [L811] int tmp ; [L814] COND FALSE !(\read(pumpRunning)) [L103] int tmp ; [L104] int tmp___0 ; [L575] int retValue_acc ; [L578] retValue_acc = waterLevel [L579] return (retValue_acc); [L108] tmp = getWaterLevel() [L110] COND TRUE tmp != 2 [L881] int retValue_acc ; [L884] retValue_acc = pumpRunning [L885] return (retValue_acc); [L112] tmp___0 = isPumpRunning() [L114] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...