./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.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_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/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 1ab16baa4986c30d82da896f91b34098372adf7a ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2020-11-29 19:46:42,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:46:42,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:46:42,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:46:42,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:46:42,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:46:42,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:46:42,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:46:42,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:46:42,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:46:42,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:46:42,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:46:42,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:46:42,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:46:42,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:46:42,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:46:42,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:46:42,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:46:42,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:46:42,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:46:42,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:46:42,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:46:42,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:46:42,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:46:42,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:46:42,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:46:42,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:46:42,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:46:42,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:46:42,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:46:42,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:46:42,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:46:42,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:46:42,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:46:42,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:46:42,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:46:42,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:46:42,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:46:42,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:46:42,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:46:42,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:46:42,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:46:42,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:46:42,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:46:42,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:46:42,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:46:42,348 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:46:42,348 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:46:42,349 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:46:42,349 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:46:42,349 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:46:42,350 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:46:42,350 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:46:42,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:46:42,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:46:42,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:46:42,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:46:42,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:46:42,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:46:42,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:46:42,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:46:42,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:46:42,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:46:42,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:46:42,355 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:46:42,356 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:46:42,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:46:42,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:46:42,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:46:42,357 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:46:42,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:46:42,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:46:42,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:46:42,359 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:46:42,360 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:46:42,361 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_6a384958-34ce-4d16-9aeb-894a906c42f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab16baa4986c30d82da896f91b34098372adf7a [2020-11-29 19:46:42,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:46:42,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:46:42,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:46:42,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:46:42,735 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:46:42,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2020-11-29 19:46:42,839 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/data/e00df40cd/9bf9dce25e0a4f31b955dac942fcbddc/FLAGf97ac02e5 [2020-11-29 19:46:43,524 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:46:43,533 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2020-11-29 19:46:43,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/data/e00df40cd/9bf9dce25e0a4f31b955dac942fcbddc/FLAGf97ac02e5 [2020-11-29 19:46:43,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/data/e00df40cd/9bf9dce25e0a4f31b955dac942fcbddc [2020-11-29 19:46:43,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:46:43,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:46:43,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:46:43,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:46:43,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:46:43,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:46:43" (1/1) ... [2020-11-29 19:46:43,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a14de5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:43, skipping insertion in model container [2020-11-29 19:46:43,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:46:43" (1/1) ... [2020-11-29 19:46:43,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:46:43,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:46:44,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:46:44,478 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:46:44,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:46:44,634 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:46:44,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44 WrapperNode [2020-11-29 19:46:44,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:46:44,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:46:44,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:46:44,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:46:44,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:46:44,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:46:44,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:46:44,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:46:44,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... [2020-11-29 19:46:44,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:46:44,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:46:44,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:46:44,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:46:44,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/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 [2020-11-29 19:46:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:46:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:46:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:46:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:46:46,427 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:46:46,427 INFO L298 CfgBuilder]: Removed 206 assume(true) statements. [2020-11-29 19:46:46,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:46:46 BoogieIcfgContainer [2020-11-29 19:46:46,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:46:46,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:46:46,432 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:46:46,437 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:46:46,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:46:46,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:46:43" (1/3) ... [2020-11-29 19:46:46,440 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6286c281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:46:46, skipping insertion in model container [2020-11-29 19:46:46,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:46:46,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:46:44" (2/3) ... [2020-11-29 19:46:46,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6286c281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:46:46, skipping insertion in model container [2020-11-29 19:46:46,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:46:46,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:46:46" (3/3) ... [2020-11-29 19:46:46,445 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product48.cil.c [2020-11-29 19:46:46,505 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:46:46,505 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:46:46,505 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:46:46,505 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:46:46,506 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:46:46,506 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:46:46,506 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:46:46,506 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:46:46,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-29 19:46:46,592 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-29 19:46:46,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:46,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:46,605 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:46,605 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:46,605 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:46:46,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-29 19:46:46,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-29 19:46:46,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:46,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:46,627 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:46,627 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:46,636 INFO L794 eck$LassoCheckResult]: Stem: 86#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 56#L168true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 78#L176true main_#t~ret80 := valid_product_#res;main_~tmp~9 := main_#t~ret80;havoc main_#t~ret80; 50#L975true assume 0 != main_~tmp~9; 13#L951true ~methAndRunningLastTime~0 := 0; 98#L484true havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 100#L495-1true [2020-11-29 19:46:46,636 INFO L796 eck$LassoCheckResult]: Loop: 100#L495-1true assume !false; 51#L196true assume test_~splverifierCounter~0 < 4; 3#L197true test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 22#L205true assume !(0 != test_~tmp~0); 20#L205-1true test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 69#L215true assume !(0 != test_~tmp___0~0); 65#L215-1true test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 132#L225true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 126#L233-1true assume !(0 != ~pumpRunning~0); 9#L266true assume !(0 != ~systemActive~0); 37#L273true havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 24#L92-3true __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 118#L495true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 100#L495-1true [2020-11-29 19:46:46,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:46,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:46:46,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:46,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683570016] [2020-11-29 19:46:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:46,949 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:47,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:47,206 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:47,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:47,213 INFO L82 PathProgramCache]: Analyzing trace with hash 14512662, now seen corresponding path program 1 times [2020-11-29 19:46:47,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:47,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618480406] [2020-11-29 19:46:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:46:47,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618480406] [2020-11-29 19:46:47,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:46:47,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:46:47,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420025547] [2020-11-29 19:46:47,345 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:46:47,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:46:47,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:46:47,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:46:47,370 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 3 states. [2020-11-29 19:46:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:46:47,498 INFO L93 Difference]: Finished difference Result 257 states and 373 transitions. [2020-11-29 19:46:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:46:47,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 373 transitions. [2020-11-29 19:46:47,521 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 166 [2020-11-29 19:46:47,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 243 states and 358 transitions. [2020-11-29 19:46:47,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2020-11-29 19:46:47,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2020-11-29 19:46:47,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 358 transitions. [2020-11-29 19:46:47,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:46:47,548 INFO L691 BuchiCegarLoop]: Abstraction has 243 states and 358 transitions. [2020-11-29 19:46:47,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 358 transitions. [2020-11-29 19:46:47,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2020-11-29 19:46:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-29 19:46:47,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 355 transitions. [2020-11-29 19:46:47,632 INFO L714 BuchiCegarLoop]: Abstraction has 241 states and 355 transitions. [2020-11-29 19:46:47,638 INFO L594 BuchiCegarLoop]: Abstraction has 241 states and 355 transitions. [2020-11-29 19:46:47,638 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:46:47,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 355 transitions. [2020-11-29 19:46:47,643 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2020-11-29 19:46:47,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:47,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:47,646 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:47,647 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:47,647 INFO L794 eck$LassoCheckResult]: Stem: 513#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 411#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 412#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 486#L176 main_#t~ret80 := valid_product_#res;main_~tmp~9 := main_#t~ret80;havoc main_#t~ret80; 478#L975 assume 0 != main_~tmp~9; 419#L951 ~methAndRunningLastTime~0 := 0; 420#L484 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 525#L495-1 [2020-11-29 19:46:47,647 INFO L796 eck$LassoCheckResult]: Loop: 525#L495-1 assume !false; 479#L196 assume test_~splverifierCounter~0 < 4; 401#L197 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 402#L205 assume !(0 != test_~tmp~0); 434#L205-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 435#L215 assume !(0 != test_~tmp___0~0); 498#L215-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 499#L225 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 541#L233-1 assume !(0 != ~pumpRunning~0); 413#L266 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 414#L324 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret22, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 564#L298-1 assume !(0 == ~pumpRunning~0); 561#L273 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 560#L92-3 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 558#L495 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 525#L495-1 [2020-11-29 19:46:47,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:47,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:46:47,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:47,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590584584] [2020-11-29 19:46:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:47,750 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:47,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:47,860 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:47,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:47,861 INFO L82 PathProgramCache]: Analyzing trace with hash -2018522312, now seen corresponding path program 1 times [2020-11-29 19:46:47,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:47,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475958693] [2020-11-29 19:46:47,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:46:47,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475958693] [2020-11-29 19:46:47,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:46:47,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:46:47,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059329608] [2020-11-29 19:46:47,909 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:46:47,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:46:47,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:46:47,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:46:47,911 INFO L87 Difference]: Start difference. First operand 241 states and 355 transitions. cyclomatic complexity: 117 Second operand 3 states. [2020-11-29 19:46:48,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:46:48,091 INFO L93 Difference]: Finished difference Result 330 states and 467 transitions. [2020-11-29 19:46:48,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:46:48,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330 states and 467 transitions. [2020-11-29 19:46:48,098 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2020-11-29 19:46:48,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330 states to 330 states and 467 transitions. [2020-11-29 19:46:48,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 330 [2020-11-29 19:46:48,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 330 [2020-11-29 19:46:48,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 330 states and 467 transitions. [2020-11-29 19:46:48,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:46:48,111 INFO L691 BuchiCegarLoop]: Abstraction has 330 states and 467 transitions. [2020-11-29 19:46:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states and 467 transitions. [2020-11-29 19:46:48,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-11-29 19:46:48,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-11-29 19:46:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 467 transitions. [2020-11-29 19:46:48,146 INFO L714 BuchiCegarLoop]: Abstraction has 330 states and 467 transitions. [2020-11-29 19:46:48,147 INFO L594 BuchiCegarLoop]: Abstraction has 330 states and 467 transitions. [2020-11-29 19:46:48,147 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:46:48,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 330 states and 467 transitions. [2020-11-29 19:46:48,151 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2020-11-29 19:46:48,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:46:48,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:46:48,153 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:48,153 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:48,153 INFO L794 eck$LassoCheckResult]: Stem: 1101#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 988#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 989#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 1070#L176 main_#t~ret80 := valid_product_#res;main_~tmp~9 := main_#t~ret80;havoc main_#t~ret80; 1059#L975 assume 0 != main_~tmp~9; 997#L951 ~methAndRunningLastTime~0 := 0; 998#L484 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1116#L495-1 [2020-11-29 19:46:48,154 INFO L796 eck$LassoCheckResult]: Loop: 1116#L495-1 assume !false; 1218#L196 assume test_~splverifierCounter~0 < 4; 1217#L197 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 1216#L205 assume !(0 != test_~tmp~0); 1214#L205-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 1212#L215 assume !(0 != test_~tmp___0~0); 1206#L215-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 1204#L225 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1132#L233-1 assume !(0 != ~pumpRunning~0); 1144#L266 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1125#L324 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret22, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1028#L298-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret42, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1029#L132-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1193#L137-1 isHighWaterLevel_#t~ret42 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret42;havoc isHighWaterLevel_#t~ret42; 1092#L443-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1093#L443-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1192#L449-1 processEnvironment__wrappee__methaneQuery_#t~ret22 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret22;havoc processEnvironment__wrappee__methaneQuery_#t~ret22; 1136#L302-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 1049#L273 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1230#L92-3 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 1227#L495 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 1116#L495-1 [2020-11-29 19:46:48,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:48,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:46:48,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:48,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139800257] [2020-11-29 19:46:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:48,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:48,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:48,344 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:48,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:48,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1917413412, now seen corresponding path program 1 times [2020-11-29 19:46:48,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:48,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623905204] [2020-11-29 19:46:48,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:48,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:48,374 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:48,390 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:48,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:48,391 INFO L82 PathProgramCache]: Analyzing trace with hash -604412258, now seen corresponding path program 1 times [2020-11-29 19:46:48,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:48,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916337351] [2020-11-29 19:46:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:48,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:48,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:48,609 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:48,808 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-29 19:48:24,686 WARN L193 SmtUtils]: Spent 1.60 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:49:30,771 WARN L193 SmtUtils]: Spent 1.10 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:49:30,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:49:30 BoogieIcfgContainer [2020-11-29 19:49:30,927 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:49:30,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:49:30,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:49:30,929 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:49:30,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:46:46" (3/4) ... [2020-11-29 19:49:30,933 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:49:30,999 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6a384958-34ce-4d16-9aeb-894a906c42f7/bin/uautomizer/witness.graphml [2020-11-29 19:49:30,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:49:31,001 INFO L168 Benchmark]: Toolchain (without parser) took 167176.89 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 83.5 MB in the beginning and 64.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:31,002 INFO L168 Benchmark]: CDTParser took 1.09 ms. Allocated memory is still 71.3 MB. Free memory was 46.5 MB in the beginning and 46.5 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:49:31,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.86 ms. Allocated memory is still 117.4 MB. Free memory was 83.3 MB in the beginning and 84.0 MB in the end (delta: -703.1 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:31,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.54 ms. Allocated memory is still 117.4 MB. Free memory was 84.0 MB in the beginning and 80.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:31,004 INFO L168 Benchmark]: Boogie Preprocessor took 120.62 ms. Allocated memory is still 117.4 MB. Free memory was 80.0 MB in the beginning and 77.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:31,005 INFO L168 Benchmark]: RCFGBuilder took 1542.13 ms. Allocated memory is still 117.4 MB. Free memory was 77.1 MB in the beginning and 68.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:31,006 INFO L168 Benchmark]: BuchiAutomizer took 164496.21 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 68.2 MB in the beginning and 67.4 MB in the end (delta: 760.9 kB). Peak memory consumption was 69.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:31,007 INFO L168 Benchmark]: Witness Printer took 71.37 ms. Allocated memory is still 144.7 MB. Free memory was 67.4 MB in the beginning and 64.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:31,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09 ms. Allocated memory is still 71.3 MB. Free memory was 46.5 MB in the beginning and 46.5 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 800.86 ms. Allocated memory is still 117.4 MB. Free memory was 83.3 MB in the beginning and 84.0 MB in the end (delta: -703.1 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 128.54 ms. Allocated memory is still 117.4 MB. Free memory was 84.0 MB in the beginning and 80.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 120.62 ms. Allocated memory is still 117.4 MB. Free memory was 80.0 MB in the beginning and 77.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1542.13 ms. Allocated memory is still 117.4 MB. Free memory was 77.1 MB in the beginning and 68.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 164496.21 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 68.2 MB in the beginning and 67.4 MB in the end (delta: 760.9 kB). Peak memory consumption was 69.4 MB. Max. memory is 16.1 GB. * Witness Printer took 71.37 ms. Allocated memory is still 144.7 MB. Free memory was 67.4 MB in the beginning and 64.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 330 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 164.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 163.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 330 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 357 SDtfs, 325 SDslu, 242 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 195]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=21856, NULL=0, NULL=1, NULL=0, NULL=21848, NULL=21845, methaneLevelCritical=0, NULL=0, NULL=21866, NULL=21849, NULL=0, retValue_acc=0, tmp___1=0, NULL=21855, NULL=0, NULL=21867, cleanupTimeShifts=4, tmp=0, NULL=21846, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@acc6b1e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dba5c2b=0, NULL=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dba5118=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=21857, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=21860, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, NULL=21854, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bea8acb=0, NULL=21865, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27889f0=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12103a73=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4870b8a7=72, tmp=1, NULL=21859, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=21858, NULL=21853, NULL=21843, NULL=21862, tmp___0=0, NULL=0, NULL=21861, NULL=0, NULL=0, NULL=0, NULL=21863, NULL=0, NULL=0, systemActive=1, NULL=0, NULL=21844, \result=0, NULL=0, retValue_acc=0, NULL=21841, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5817cefc=0, \result=0, NULL=21852, NULL=0, NULL=21864, retValue_acc=1, NULL=21850, NULL=2, tmp___2=72, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=21842, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37d74301=0, NULL=21851, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f73a65c=0, tmp=0, NULL=21847} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L258] int pumpRunning = 0; [L259] int systemActive = 1; [L478] int methAndRunningLastTime ; [L686] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L892] int cleanupTimeShifts = 4; [L966] int retValue_acc ; [L967] int tmp ; [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L973] tmp = valid_product() [L975] COND TRUE \read(tmp) [L483] methAndRunningLastTime = 0 [L186] int splverifierCounter ; [L187] int tmp ; [L188] int tmp___0 ; [L189] int tmp___1 ; [L190] int tmp___2 ; [L193] splverifierCounter = 0 Loop: [L195] COND TRUE 1 [L197] COND TRUE splverifierCounter < 4 [L203] tmp = __VERIFIER_nondet_int() [L205] COND FALSE !(\read(tmp)) [L213] tmp___0 = __VERIFIER_nondet_int() [L215] COND FALSE !(\read(tmp___0)) [L223] tmp___2 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp___2) [L472] systemActive = 1 [L266] COND FALSE !(\read(pumpRunning)) [L273] COND TRUE \read(systemActive) [L321] int tmp ; [L324] COND FALSE !(\read(pumpRunning)) [L295] int tmp ; [L298] COND TRUE ! pumpRunning [L435] int retValue_acc ; [L436] int tmp ; [L437] int tmp___0 ; [L129] int retValue_acc ; [L132] COND TRUE waterLevel < 2 [L133] retValue_acc = 1 [L134] return (retValue_acc); [L441] tmp = isHighWaterSensorDry() [L443] COND TRUE \read(tmp) [L444] tmp___0 = 0 [L448] retValue_acc = tmp___0 [L449] return (retValue_acc); [L300] tmp = isHighWaterLevel() [L302] COND FALSE !(\read(tmp)) [L488] int tmp ; [L489] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L493] tmp = isMethaneLevelCritical() [L495] COND FALSE !(\read(tmp)) [L511] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...