./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product62.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_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/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 cdb76ce0a10208029e2bf0c2c9347003489ff508 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:32:56,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:32:56,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:32:56,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:32:56,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:32:56,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:32:56,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:32:56,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:32:56,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:32:56,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:32:56,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:32:56,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:32:56,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:32:56,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:32:56,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:32:56,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:32:56,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:32:56,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:32:56,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:32:56,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:32:56,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:32:56,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:32:56,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:32:56,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:32:56,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:32:56,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:32:56,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:32:56,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:32:56,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:32:56,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:32:56,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:32:56,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:32:56,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:32:56,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:32:56,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:32:56,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:32:56,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:32:56,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:32:56,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:32:56,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:32:56,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:32:56,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:32:56,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:32:56,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:32:56,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:32:56,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:32:56,315 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:32:56,315 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:32:56,315 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:32:56,315 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:32:56,315 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:32:56,316 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:32:56,316 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:32:56,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:32:56,316 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:32:56,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:32:56,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:32:56,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:32:56,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:32:56,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:32:56,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:32:56,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:32:56,318 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:32:56,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:32:56,318 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:32:56,318 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:32:56,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:32:56,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:32:56,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:32:56,319 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:32:56,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:32:56,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:32:56,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:32:56,320 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:32:56,321 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:32:56,321 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_db257817-91a3-41c4-b71b-b3c943645588/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdb76ce0a10208029e2bf0c2c9347003489ff508 [2020-11-30 00:32:56,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:32:56,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:32:56,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:32:56,560 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:32:56,565 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:32:56,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2020-11-30 00:32:56,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/data/f76739acf/11307a3f77a540c589769a5f8b0781f9/FLAG1f33e8c5b [2020-11-30 00:32:57,119 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:32:57,119 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2020-11-30 00:32:57,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/data/f76739acf/11307a3f77a540c589769a5f8b0781f9/FLAG1f33e8c5b [2020-11-30 00:32:57,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/data/f76739acf/11307a3f77a540c589769a5f8b0781f9 [2020-11-30 00:32:57,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:32:57,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:32:57,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:32:57,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:32:57,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:32:57,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:32:57" (1/1) ... [2020-11-30 00:32:57,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7829448a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:57, skipping insertion in model container [2020-11-30 00:32:57,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:32:57" (1/1) ... [2020-11-30 00:32:57,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:32:57,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:32:57,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:32:57,941 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:32:58,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:32:58,082 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:32:58,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58 WrapperNode [2020-11-30 00:32:58,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:32:58,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:32:58,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:32:58,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:32:58,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:32:58,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:32:58,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:32:58,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:32:58,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... [2020-11-30 00:32:58,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:32:58,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:32:58,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:32:58,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:32:58,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/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 00:32:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:32:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:32:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:32:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:32:59,611 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:32:59,613 INFO L298 CfgBuilder]: Removed 358 assume(true) statements. [2020-11-30 00:32:59,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:32:59 BoogieIcfgContainer [2020-11-30 00:32:59,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:32:59,618 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:32:59,618 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:32:59,621 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:32:59,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:32:59,622 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:32:57" (1/3) ... [2020-11-30 00:32:59,623 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d894d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:32:59, skipping insertion in model container [2020-11-30 00:32:59,624 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:32:59,624 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:58" (2/3) ... [2020-11-30 00:32:59,624 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d894d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:32:59, skipping insertion in model container [2020-11-30 00:32:59,624 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:32:59,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:32:59" (3/3) ... [2020-11-30 00:32:59,627 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2020-11-30 00:32:59,686 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:32:59,687 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:32:59,687 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:32:59,687 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:32:59,687 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:32:59,688 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:32:59,688 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:32:59,688 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:32:59,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states. [2020-11-30 00:32:59,740 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-30 00:32:59,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:32:59,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:32:59,748 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:32:59,749 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:32:59,749 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:32:59,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states. [2020-11-30 00:32:59,767 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-30 00:32:59,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:32:59,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:32:59,774 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:32:59,775 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:32:59,780 INFO L794 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 13#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 46#L694true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 142#L702true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 69#L500true assume 0 != main_~tmp~3; 141#L471true ~methAndRunningLastTime~0 := 0; 158#L531true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, 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; 161#L542-1true [2020-11-30 00:32:59,782 INFO L796 eck$LassoCheckResult]: Loop: 161#L542-1true assume !false; 43#L719true assume test_~splverifierCounter~0 < 4; 21#L720true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 101#L728true assume !(0 != test_~tmp~5); 105#L728-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 44#L738true assume !(0 != test_~tmp___0~1); 45#L738-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 68#L748true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 224#L756-2true assume !(0 != ~pumpRunning~0); 203#L784true assume !(0 != ~systemActive~0); 36#L791true havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 134#L612-5true __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 156#L542true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 161#L542-1true [2020-11-30 00:32:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:32:59,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:32:59,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:32:59,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467644814] [2020-11-30 00:32:59,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:00,126 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:00,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:00,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:00,313 INFO L82 PathProgramCache]: Analyzing trace with hash 10110541, now seen corresponding path program 1 times [2020-11-30 00:33:00,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:00,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140298354] [2020-11-30 00:33:00,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:33:00,377 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 00:33:00,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140298354] [2020-11-30 00:33:00,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:33:00,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:33:00,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117473099] [2020-11-30 00:33:00,383 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:33:00,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:33:00,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:33:00,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:33:00,397 INFO L87 Difference]: Start difference. First operand 229 states. Second operand 3 states. [2020-11-30 00:33:00,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:33:00,470 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2020-11-30 00:33:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:33:00,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 330 transitions. [2020-11-30 00:33:00,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2020-11-30 00:33:00,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 219 states and 322 transitions. [2020-11-30 00:33:00,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2020-11-30 00:33:00,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2020-11-30 00:33:00,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 322 transitions. [2020-11-30 00:33:00,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:33:00,505 INFO L691 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2020-11-30 00:33:00,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 322 transitions. [2020-11-30 00:33:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2020-11-30 00:33:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-11-30 00:33:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 322 transitions. [2020-11-30 00:33:00,561 INFO L714 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2020-11-30 00:33:00,561 INFO L594 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2020-11-30 00:33:00,562 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:33:00,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 322 transitions. [2020-11-30 00:33:00,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2020-11-30 00:33:00,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:00,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:00,566 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:00,566 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 00:33:00,567 INFO L794 eck$LassoCheckResult]: Stem: 567#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 483#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 484#L694 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 546#L702 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 593#L500 assume 0 != main_~tmp~3; 594#L471 ~methAndRunningLastTime~0 := 0; 635#L531 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, 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; 628#L542-1 [2020-11-30 00:33:00,567 INFO L796 eck$LassoCheckResult]: Loop: 628#L542-1 assume !false; 542#L719 assume test_~splverifierCounter~0 < 4; 498#L720 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 499#L728 assume !(0 != test_~tmp~5); 541#L728-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 544#L738 assume !(0 != test_~tmp___0~1); 473#L738-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 545#L748 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 592#L756-2 assume !(0 != ~pumpRunning~0); 668#L784 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 516#L868 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret61, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 517#L842-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 565#L816-3 assume !(0 == ~pumpRunning~0); 520#L791 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 530#L612-5 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 633#L542 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 628#L542-1 [2020-11-30 00:33:00,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:00,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:33:00,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:00,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346419207] [2020-11-30 00:33:00,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:00,620 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:00,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:00,681 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:00,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:00,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1423526729, now seen corresponding path program 1 times [2020-11-30 00:33:00,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:00,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168912524] [2020-11-30 00:33:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:33:00,698 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 00:33:00,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168912524] [2020-11-30 00:33:00,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:33:00,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:33:00,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288567632] [2020-11-30 00:33:00,700 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:33:00,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:33:00,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:33:00,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:33:00,701 INFO L87 Difference]: Start difference. First operand 219 states and 322 transitions. cyclomatic complexity: 105 Second operand 3 states. [2020-11-30 00:33:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:33:00,885 INFO L93 Difference]: Finished difference Result 218 states and 304 transitions. [2020-11-30 00:33:00,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:33:00,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 304 transitions. [2020-11-30 00:33:00,888 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2020-11-30 00:33:00,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 218 states and 304 transitions. [2020-11-30 00:33:00,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 218 [2020-11-30 00:33:00,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2020-11-30 00:33:00,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 218 states and 304 transitions. [2020-11-30 00:33:00,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:33:00,894 INFO L691 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2020-11-30 00:33:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states and 304 transitions. [2020-11-30 00:33:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-30 00:33:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-30 00:33:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 304 transitions. [2020-11-30 00:33:00,911 INFO L714 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2020-11-30 00:33:00,911 INFO L594 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2020-11-30 00:33:00,911 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:33:00,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 304 transitions. [2020-11-30 00:33:00,913 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2020-11-30 00:33:00,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:00,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:00,914 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:00,914 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 00:33:00,914 INFO L794 eck$LassoCheckResult]: Stem: 1046#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 929#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 930#L694 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1025#L702 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1027#L500 assume 0 != main_~tmp~3; 1022#L471 ~methAndRunningLastTime~0 := 0; 1023#L531 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, 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; 1004#L542-1 [2020-11-30 00:33:00,915 INFO L796 eck$LassoCheckResult]: Loop: 1004#L542-1 assume !false; 1021#L719 assume test_~splverifierCounter~0 < 4; 954#L720 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 955#L728 assume !(0 != test_~tmp~5); 964#L728-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 970#L738 assume !(0 != test_~tmp___0~1); 921#L738-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 1024#L748 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1082#L756-2 assume !(0 != ~pumpRunning~0); 1077#L784 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 995#L868 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret61, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 996#L842-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 966#L816-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 967#L652-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1042#L657-3 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 1078#L987-9 assume 0 != isHighWaterLevel_~tmp~10;isHighWaterLevel_~tmp___0~2 := 0; 1086#L987-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1073#L993-3 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 1054#L820-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 968#L791 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1009#L612-5 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 1017#L542 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 1004#L542-1 [2020-11-30 00:33:00,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:00,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:33:00,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:00,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398281775] [2020-11-30 00:33:00,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:00,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:01,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:01,061 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1081607639, now seen corresponding path program 1 times [2020-11-30 00:33:01,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:01,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609407932] [2020-11-30 00:33:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:33:01,099 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 00:33:01,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609407932] [2020-11-30 00:33:01,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:33:01,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:33:01,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609941928] [2020-11-30 00:33:01,100 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:33:01,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:33:01,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:33:01,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:33:01,101 INFO L87 Difference]: Start difference. First operand 218 states and 304 transitions. cyclomatic complexity: 88 Second operand 4 states. [2020-11-30 00:33:01,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:33:01,307 INFO L93 Difference]: Finished difference Result 604 states and 826 transitions. [2020-11-30 00:33:01,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:33:01,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 604 states and 826 transitions. [2020-11-30 00:33:01,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 420 [2020-11-30 00:33:01,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 604 states to 604 states and 826 transitions. [2020-11-30 00:33:01,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 604 [2020-11-30 00:33:01,326 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 604 [2020-11-30 00:33:01,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 604 states and 826 transitions. [2020-11-30 00:33:01,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:33:01,335 INFO L691 BuchiCegarLoop]: Abstraction has 604 states and 826 transitions. [2020-11-30 00:33:01,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states and 826 transitions. [2020-11-30 00:33:01,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 236. [2020-11-30 00:33:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-30 00:33:01,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 322 transitions. [2020-11-30 00:33:01,361 INFO L714 BuchiCegarLoop]: Abstraction has 236 states and 322 transitions. [2020-11-30 00:33:01,361 INFO L594 BuchiCegarLoop]: Abstraction has 236 states and 322 transitions. [2020-11-30 00:33:01,361 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:33:01,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 322 transitions. [2020-11-30 00:33:01,363 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 160 [2020-11-30 00:33:01,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:01,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:01,364 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:01,364 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 00:33:01,365 INFO L794 eck$LassoCheckResult]: Stem: 1882#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1761#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1762#L694 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1857#L702 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1859#L500 assume 0 != main_~tmp~3; 1854#L471 ~methAndRunningLastTime~0 := 0; 1855#L531 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, 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; 1836#L542-1 [2020-11-30 00:33:01,365 INFO L796 eck$LassoCheckResult]: Loop: 1836#L542-1 assume !false; 1853#L719 assume test_~splverifierCounter~0 < 4; 1786#L720 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 1787#L728 assume !(0 != test_~tmp~5); 1796#L728-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 1802#L738 assume !(0 != test_~tmp___0~1); 1753#L738-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 1856#L748 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1926#L756-2 assume !(0 != ~pumpRunning~0); 1921#L784 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 1827#L868 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret61, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 1828#L842-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1798#L816-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1799#L652-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1877#L657-3 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 1932#L987-9 assume !(0 != isHighWaterLevel_~tmp~10);isHighWaterLevel_~tmp___0~2 := 1; 1933#L987-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1915#L993-3 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 1892#L820-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1800#L791 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1841#L612-5 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 1849#L542 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 1836#L542-1 [2020-11-30 00:33:01,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:01,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-30 00:33:01,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:01,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012047640] [2020-11-30 00:33:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:01,430 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:01,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:01,470 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:01,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1438352295, now seen corresponding path program 1 times [2020-11-30 00:33:01,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:01,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254961721] [2020-11-30 00:33:01,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:33:01,511 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 00:33:01,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254961721] [2020-11-30 00:33:01,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:33:01,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:33:01,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611669148] [2020-11-30 00:33:01,513 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:33:01,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:33:01,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:33:01,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:33:01,514 INFO L87 Difference]: Start difference. First operand 236 states and 322 transitions. cyclomatic complexity: 88 Second operand 5 states. [2020-11-30 00:33:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:33:01,746 INFO L93 Difference]: Finished difference Result 541 states and 733 transitions. [2020-11-30 00:33:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:33:01,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 541 states and 733 transitions. [2020-11-30 00:33:01,751 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 378 [2020-11-30 00:33:01,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 541 states to 541 states and 733 transitions. [2020-11-30 00:33:01,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 541 [2020-11-30 00:33:01,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 541 [2020-11-30 00:33:01,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 541 states and 733 transitions. [2020-11-30 00:33:01,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:33:01,758 INFO L691 BuchiCegarLoop]: Abstraction has 541 states and 733 transitions. [2020-11-30 00:33:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states and 733 transitions. [2020-11-30 00:33:01,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 263. [2020-11-30 00:33:01,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-30 00:33:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 349 transitions. [2020-11-30 00:33:01,769 INFO L714 BuchiCegarLoop]: Abstraction has 263 states and 349 transitions. [2020-11-30 00:33:01,769 INFO L594 BuchiCegarLoop]: Abstraction has 263 states and 349 transitions. [2020-11-30 00:33:01,769 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:33:01,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 349 transitions. [2020-11-30 00:33:01,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 178 [2020-11-30 00:33:01,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:33:01,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:33:01,773 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:33:01,774 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 00:33:01,776 INFO L794 eck$LassoCheckResult]: Stem: 2678#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2554#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2555#L694 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 2651#L702 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 2653#L500 assume 0 != main_~tmp~3; 2648#L471 ~methAndRunningLastTime~0 := 0; 2649#L531 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, 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; 2679#L542-1 [2020-11-30 00:33:01,782 INFO L796 eck$LassoCheckResult]: Loop: 2679#L542-1 assume !false; 2646#L719 assume test_~splverifierCounter~0 < 4; 2577#L720 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 2578#L728 assume !(0 != test_~tmp~5); 2587#L728-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 2647#L738 assume !(0 != test_~tmp___0~1); 2546#L738-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 2650#L748 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2734#L756-2 assume !(0 != ~pumpRunning~0); 2726#L784 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 2619#L868 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret61, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 2620#L842-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2589#L816-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2590#L652-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2673#L657-3 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 2749#L987-9 assume 0 != isHighWaterLevel_~tmp~10;isHighWaterLevel_~tmp___0~2 := 0; 2750#L987-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2718#L993-3 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 2719#L820-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 2591#L791 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 2633#L612-5 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 2781#L542 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 2679#L542-1 [2020-11-30 00:33:01,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:01,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2020-11-30 00:33:01,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:01,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047917001] [2020-11-30 00:33:01,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:01,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:01,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:01,875 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:01,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:01,881 INFO L82 PathProgramCache]: Analyzing trace with hash 401549269, now seen corresponding path program 1 times [2020-11-30 00:33:01,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:01,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172613935] [2020-11-30 00:33:01,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:01,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:01,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:01,897 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:33:01,898 INFO L82 PathProgramCache]: Analyzing trace with hash -465635173, now seen corresponding path program 1 times [2020-11-30 00:33:01,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:33:01,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38957435] [2020-11-30 00:33:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:33:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:01,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:33:02,014 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:33:02,046 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:02,229 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-30 00:34:15,735 WARN L193 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:35:02,934 WARN L193 SmtUtils]: Spent 47.15 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:35:03,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:35:03 BoogieIcfgContainer [2020-11-30 00:35:03,139 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:35:03,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:35:03,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:35:03,140 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:35:03,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:32:59" (3/4) ... [2020-11-30 00:35:03,143 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:35:03,192 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db257817-91a3-41c4-b71b-b3c943645588/bin/uautomizer/witness.graphml [2020-11-30 00:35:03,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:35:03,193 INFO L168 Benchmark]: Toolchain (without parser) took 125703.27 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 70.5 MB in the beginning and 96.6 MB in the end (delta: -26.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:03,194 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory was 32.8 MB in the beginning and 32.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:03,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.23 ms. Allocated memory is still 102.8 MB. Free memory was 70.5 MB in the beginning and 67.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:03,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.05 ms. Allocated memory is still 102.8 MB. Free memory was 67.9 MB in the beginning and 62.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:03,195 INFO L168 Benchmark]: Boogie Preprocessor took 100.95 ms. Allocated memory is still 102.8 MB. Free memory was 62.6 MB in the beginning and 58.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:03,196 INFO L168 Benchmark]: RCFGBuilder took 1312.77 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 58.4 MB in the beginning and 77.5 MB in the end (delta: -19.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:03,196 INFO L168 Benchmark]: BuchiAutomizer took 123521.98 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 77.5 MB in the beginning and 98.7 MB in the end (delta: -21.3 MB). Peak memory consumption was 81.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:03,197 INFO L168 Benchmark]: Witness Printer took 51.89 ms. Allocated memory is still 155.2 MB. Free memory was 98.7 MB in the beginning and 96.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:03,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory was 32.8 MB in the beginning and 32.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 594.23 ms. Allocated memory is still 102.8 MB. Free memory was 70.5 MB in the beginning and 67.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.05 ms. Allocated memory is still 102.8 MB. Free memory was 67.9 MB in the beginning and 62.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.95 ms. Allocated memory is still 102.8 MB. Free memory was 62.6 MB in the beginning and 58.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1312.77 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 58.4 MB in the beginning and 77.5 MB in the end (delta: -19.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 123521.98 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 77.5 MB in the beginning and 98.7 MB in the end (delta: -21.3 MB). Peak memory consumption was 81.1 MB. Max. memory is 16.1 GB. * Witness Printer took 51.89 ms. Allocated memory is still 155.2 MB. Free memory was 98.7 MB in the beginning and 96.6 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 263 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 123.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 122.4s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 646 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 263 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1384 SDtfs, 1696 SDslu, 1437 SDs, 0 SdLazy, 274 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI4 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: 718]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=21965} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f47b851=0, NULL=0, NULL=21965, NULL=54441, methaneLevelCritical=0, NULL=54462, tmp=0, NULL=0, NULL=54443, tmp___1=0, NULL=54458, NULL=0, NULL=54455, NULL=54449, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24fa53c0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b5a5b47=0, NULL=0, waterLevel=1, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f16b2d2=0, retValue_acc=1, tmp=1, NULL=21967, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=54451, tmp___0=0, NULL=54463, methAndRunningLastTime=0, NULL=54447, head=0, NULL=0, NULL=0, NULL=54461, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58fefec6=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d2dbde7=0, tmp=0, retValue_acc=0, NULL=54450, NULL=54440, NULL=54452, tmp___0=0, NULL=0, NULL=54453, NULL=0, NULL=0, NULL=54459, NULL=54460, NULL=21966, NULL=54445, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@220a3147=0, \result=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=54457, \result=0, NULL=54446, NULL=54454, NULL=54456, NULL=54465, tmp___0=0, retValue_acc=1, NULL=54444, tmp___2=69, tmp=1, splverifierCounter=0, NULL=0, \result=0, NULL=54464, NULL=54448, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f66f09c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@648cd5d9=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a75c9c4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47eca6f7=0, tmp=0, NULL=54442, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L525] int methAndRunningLastTime ; [L569] int waterLevel = 1; [L570] int methaneLevelCritical = 0; [L777] int pumpRunning = 0; [L778] int systemActive = 1; [L491] int retValue_acc ; [L492] int tmp ; [L698] int retValue_acc ; [L701] retValue_acc = 1 [L702] return (retValue_acc); [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L530] methAndRunningLastTime = 0 [L709] int splverifierCounter ; [L710] int tmp ; [L711] int tmp___0 ; [L712] int tmp___1 ; [L713] int tmp___2 ; [L716] splverifierCounter = 0 Loop: [L718] COND TRUE 1 [L720] COND TRUE splverifierCounter < 4 [L726] tmp = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp)) [L736] tmp___0 = __VERIFIER_nondet_int() [L738] COND FALSE !(\read(tmp___0)) [L746] tmp___2 = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp___2) [L1020] systemActive = 1 [L784] COND FALSE !(\read(pumpRunning)) [L791] COND TRUE \read(systemActive) [L865] int tmp ; [L868] COND FALSE !(\read(pumpRunning)) [L839] int tmp ; [L842] COND FALSE !(\read(pumpRunning)) [L813] int tmp ; [L816] COND TRUE ! pumpRunning [L979] int retValue_acc ; [L980] int tmp ; [L981] int tmp___0 ; [L649] int retValue_acc ; [L652] COND TRUE waterLevel < 2 [L653] retValue_acc = 1 [L654] return (retValue_acc); [L985] tmp = isHighWaterSensorDry() [L987] COND TRUE \read(tmp) [L988] tmp___0 = 0 [L992] retValue_acc = tmp___0 [L993] return (retValue_acc); [L818] tmp = isHighWaterLevel() [L820] COND FALSE !(\read(tmp)) [L535] int tmp ; [L536] int tmp___0 ; [L608] int retValue_acc ; [L611] retValue_acc = methaneLevelCritical [L612] return (retValue_acc); [L540] tmp = isMethaneLevelCritical() [L542] COND FALSE !(\read(tmp)) [L558] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...