./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/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 9033da3093a23b8640383fad25d5fd5dfea2cc28 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 13:15:20,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:15:20,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:15:20,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:15:20,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:15:20,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:15:20,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:15:20,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:15:20,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:15:20,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:15:20,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:15:20,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:15:20,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:15:20,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:15:20,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:15:20,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:15:20,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:15:20,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:15:20,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:15:20,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:15:20,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:15:20,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:15:20,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:15:20,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:15:20,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:15:20,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:15:20,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:15:20,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:15:20,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:15:20,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:15:20,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:15:20,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:15:20,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:15:20,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:15:20,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:15:20,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:15:20,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:15:20,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:15:20,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:15:20,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:15:20,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:15:20,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 13:15:20,335 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:15:20,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:15:20,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:15:20,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:15:20,336 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:15:20,336 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 13:15:20,336 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 13:15:20,336 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 13:15:20,336 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 13:15:20,336 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 13:15:20,337 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 13:15:20,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:15:20,337 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:15:20,337 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:15:20,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:15:20,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:15:20,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:15:20,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 13:15:20,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 13:15:20,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 13:15:20,338 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:15:20,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:15:20,338 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 13:15:20,338 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:15:20,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 13:15:20,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:15:20,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:15:20,339 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 13:15:20,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:15:20,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:15:20,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:15:20,339 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 13:15:20,339 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 13:15:20,340 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_e9075538-cfc9-4ac8-882e-db8c52952ad9/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 -> 9033da3093a23b8640383fad25d5fd5dfea2cc28 [2019-12-07 13:15:20,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:15:20,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:15:20,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:15:20,448 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:15:20,448 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:15:20,449 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-12-07 13:15:20,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/data/b6f296b4f/259fde1d4d1f401081123680d6904715/FLAG365987a4d [2019-12-07 13:15:20,935 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:15:20,936 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-12-07 13:15:20,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/data/b6f296b4f/259fde1d4d1f401081123680d6904715/FLAG365987a4d [2019-12-07 13:15:20,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/data/b6f296b4f/259fde1d4d1f401081123680d6904715 [2019-12-07 13:15:20,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:15:20,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:15:20,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:15:20,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:15:20,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:15:20,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:15:20" (1/1) ... [2019-12-07 13:15:20,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:20, skipping insertion in model container [2019-12-07 13:15:20,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:15:20" (1/1) ... [2019-12-07 13:15:20,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:15:21,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:15:21,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:15:21,230 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:15:21,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:15:21,297 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:15:21,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21 WrapperNode [2019-12-07 13:15:21,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:15:21,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:15:21,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:15:21,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:15:21,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:15:21,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:15:21,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:15:21,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:15:21,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... [2019-12-07 13:15:21,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:15:21,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:15:21,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:15:21,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:15:21,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/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 [2019-12-07 13:15:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:15:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 13:15:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:15:21,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:15:21,832 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:15:21,833 INFO L287 CfgBuilder]: Removed 166 assume(true) statements. [2019-12-07 13:15:21,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:15:21 BoogieIcfgContainer [2019-12-07 13:15:21,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:15:21,835 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 13:15:21,835 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 13:15:21,837 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 13:15:21,837 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:15:21,838 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:15:20" (1/3) ... [2019-12-07 13:15:21,838 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d32767c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:15:21, skipping insertion in model container [2019-12-07 13:15:21,838 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:15:21,838 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:15:21" (2/3) ... [2019-12-07 13:15:21,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d32767c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:15:21, skipping insertion in model container [2019-12-07 13:15:21,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:15:21,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:15:21" (3/3) ... [2019-12-07 13:15:21,840 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2019-12-07 13:15:21,870 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 13:15:21,870 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 13:15:21,870 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 13:15:21,870 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:15:21,870 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:15:21,870 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 13:15:21,870 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:15:21,870 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 13:15:21,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states. [2019-12-07 13:15:21,906 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-12-07 13:15:21,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:15:21,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:15:21,912 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 13:15:21,912 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:15:21,912 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 13:15:21,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states. [2019-12-07 13:15:21,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-12-07 13:15:21,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:15:21,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:15:21,920 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 13:15:21,920 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:15:21,924 INFO L794 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3#L-1true havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 90#L594true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 122#L602true main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 98#L558true assume 0 != main_~tmp~6; 26#L532true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 72#L454-1true [2019-12-07 13:15:21,925 INFO L796 eck$LassoCheckResult]: Loop: 72#L454-1true assume !false; 50#L165true assume test_~splverifierCounter~0 < 4; 20#L166true test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 37#L174true assume !(0 != test_~tmp~0); 36#L174-1true test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 95#L184true assume !(0 != test_~tmp___0~0); 92#L184-1true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 15#L194true assume 0 != test_~tmp___2~0; 105#L200-1true assume !(0 != ~pumpRunning~0); 112#L233true assume !(0 != ~systemActive~0); 33#L240true havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 42#L91true __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 110#L448true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 72#L454-1true [2019-12-07 13:15:21,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:21,930 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 13:15:21,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:21,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946987935] [2019-12-07 13:15:21,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,151 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:15:22,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:22,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1671186434, now seen corresponding path program 1 times [2019-12-07 13:15:22,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:22,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634614556] [2019-12-07 13:15:22,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,161 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:15:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:22,162 INFO L82 PathProgramCache]: Analyzing trace with hash 43092504, now seen corresponding path program 1 times [2019-12-07 13:15:22,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:22,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819481045] [2019-12-07 13:15:22,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:15:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:15:22,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819481045] [2019-12-07 13:15:22,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:15:22,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 13:15:22,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358305511] [2019-12-07 13:15:22,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:15:22,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:15:22,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:15:22,307 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 6 states. [2019-12-07 13:15:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:15:22,448 INFO L93 Difference]: Finished difference Result 294 states and 423 transitions. [2019-12-07 13:15:22,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:15:22,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 423 transitions. [2019-12-07 13:15:22,456 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 189 [2019-12-07 13:15:22,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 273 states and 402 transitions. [2019-12-07 13:15:22,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 273 [2019-12-07 13:15:22,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 273 [2019-12-07 13:15:22,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 273 states and 402 transitions. [2019-12-07 13:15:22,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:15:22,467 INFO L688 BuchiCegarLoop]: Abstraction has 273 states and 402 transitions. [2019-12-07 13:15:22,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states and 402 transitions. [2019-12-07 13:15:22,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 162. [2019-12-07 13:15:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-12-07 13:15:22,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 237 transitions. [2019-12-07 13:15:22,498 INFO L711 BuchiCegarLoop]: Abstraction has 162 states and 237 transitions. [2019-12-07 13:15:22,498 INFO L591 BuchiCegarLoop]: Abstraction has 162 states and 237 transitions. [2019-12-07 13:15:22,498 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 13:15:22,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 237 transitions. [2019-12-07 13:15:22,500 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2019-12-07 13:15:22,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:15:22,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:15:22,501 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 13:15:22,501 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:15:22,502 INFO L794 eck$LassoCheckResult]: Stem: 523#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 434#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 435#L594 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 538#L602 main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 541#L558 assume 0 != main_~tmp~6; 474#L532 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 473#L454-1 [2019-12-07 13:15:22,502 INFO L796 eck$LassoCheckResult]: Loop: 473#L454-1 assume !false; 506#L165 assume test_~splverifierCounter~0 < 4; 464#L166 test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 465#L174 assume !(0 != test_~tmp~0); 488#L174-1 test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 489#L184 assume !(0 != test_~tmp___0~0); 480#L184-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 454#L194 assume 0 != test_~tmp___2~0; 455#L200-1 assume !(0 != ~pumpRunning~0); 441#L233 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 548#L291 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 469#L265-1 assume !(0 == ~pumpRunning~0); 470#L240 havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 485#L91 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 496#L448 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 473#L454-1 [2019-12-07 13:15:22,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:22,502 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 13:15:22,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:22,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821851887] [2019-12-07 13:15:22,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,558 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:15:22,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:22,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1961899900, now seen corresponding path program 1 times [2019-12-07 13:15:22,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:22,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354151519] [2019-12-07 13:15:22,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:15:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:15:22,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354151519] [2019-12-07 13:15:22,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:15:22,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:15:22,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254333295] [2019-12-07 13:15:22,568 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 13:15:22,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:15:22,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:15:22,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:15:22,568 INFO L87 Difference]: Start difference. First operand 162 states and 237 transitions. cyclomatic complexity: 78 Second operand 3 states. [2019-12-07 13:15:22,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:15:22,631 INFO L93 Difference]: Finished difference Result 207 states and 286 transitions. [2019-12-07 13:15:22,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:15:22,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 286 transitions. [2019-12-07 13:15:22,634 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2019-12-07 13:15:22,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 286 transitions. [2019-12-07 13:15:22,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2019-12-07 13:15:22,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2019-12-07 13:15:22,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 286 transitions. [2019-12-07 13:15:22,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:15:22,638 INFO L688 BuchiCegarLoop]: Abstraction has 207 states and 286 transitions. [2019-12-07 13:15:22,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 286 transitions. [2019-12-07 13:15:22,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2019-12-07 13:15:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-12-07 13:15:22,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 286 transitions. [2019-12-07 13:15:22,647 INFO L711 BuchiCegarLoop]: Abstraction has 207 states and 286 transitions. [2019-12-07 13:15:22,647 INFO L591 BuchiCegarLoop]: Abstraction has 207 states and 286 transitions. [2019-12-07 13:15:22,647 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 13:15:22,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 286 transitions. [2019-12-07 13:15:22,649 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2019-12-07 13:15:22,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:15:22,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:15:22,649 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 13:15:22,650 INFO L850 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] [2019-12-07 13:15:22,650 INFO L794 eck$LassoCheckResult]: Stem: 902#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 809#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 810#L594 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 917#L602 main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 920#L558 assume 0 != main_~tmp~6; 849#L532 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 846#L454-1 [2019-12-07 13:15:22,650 INFO L796 eck$LassoCheckResult]: Loop: 846#L454-1 assume !false; 884#L165 assume test_~splverifierCounter~0 < 4; 839#L166 test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 840#L174 assume !(0 != test_~tmp~0); 865#L174-1 test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 866#L184 assume !(0 != test_~tmp___0~0); 854#L184-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 829#L194 assume 0 != test_~tmp___2~0; 830#L200-1 assume !(0 != ~pumpRunning~0); 927#L233 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 931#L291 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 844#L265-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 819#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 820#L136-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 825#L393-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 907#L393-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 885#L399-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 886#L269-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 861#L240 havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 862#L91 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 874#L448 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 846#L454-1 [2019-12-07 13:15:22,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:22,650 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 13:15:22,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:22,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063678789] [2019-12-07 13:15:22,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,701 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:15:22,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:22,701 INFO L82 PathProgramCache]: Analyzing trace with hash -2099215608, now seen corresponding path program 1 times [2019-12-07 13:15:22,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:22,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321435054] [2019-12-07 13:15:22,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:22,712 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:15:22,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:22,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1643144414, now seen corresponding path program 1 times [2019-12-07 13:15:22,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:22,713 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564543607] [2019-12-07 13:15:22,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:15:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:15:22,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564543607] [2019-12-07 13:15:22,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:15:22,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:15:22,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782990147] [2019-12-07 13:15:22,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:15:22,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:15:22,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:15:22,885 INFO L87 Difference]: Start difference. First operand 207 states and 286 transitions. cyclomatic complexity: 82 Second operand 5 states. [2019-12-07 13:15:22,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:15:22,951 INFO L93 Difference]: Finished difference Result 705 states and 979 transitions. [2019-12-07 13:15:22,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 13:15:22,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 705 states and 979 transitions. [2019-12-07 13:15:22,957 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 531 [2019-12-07 13:15:22,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 705 states to 705 states and 979 transitions. [2019-12-07 13:15:22,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 705 [2019-12-07 13:15:22,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 705 [2019-12-07 13:15:22,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 705 states and 979 transitions. [2019-12-07 13:15:22,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:15:22,966 INFO L688 BuchiCegarLoop]: Abstraction has 705 states and 979 transitions. [2019-12-07 13:15:22,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states and 979 transitions. [2019-12-07 13:15:22,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 408. [2019-12-07 13:15:22,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-12-07 13:15:22,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 554 transitions. [2019-12-07 13:15:22,982 INFO L711 BuchiCegarLoop]: Abstraction has 408 states and 554 transitions. [2019-12-07 13:15:22,982 INFO L591 BuchiCegarLoop]: Abstraction has 408 states and 554 transitions. [2019-12-07 13:15:22,983 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 13:15:22,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 554 transitions. [2019-12-07 13:15:22,985 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 292 [2019-12-07 13:15:22,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:15:22,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:15:22,986 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 13:15:22,986 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:15:22,986 INFO L794 eck$LassoCheckResult]: Stem: 1842#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1739#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1740#L594 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1860#L602 main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 1867#L558 assume 0 != main_~tmp~6; 1780#L532 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, 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; 1781#L454-1 [2019-12-07 13:15:22,987 INFO L796 eck$LassoCheckResult]: Loop: 1781#L454-1 assume !false; 2127#L165 assume test_~splverifierCounter~0 < 4; 2125#L166 test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 2124#L174 assume !(0 != test_~tmp~0); 2122#L174-1 test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 2120#L184 assume !(0 != test_~tmp___0~0); 2119#L184-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 2097#L194 assume 0 != test_~tmp___2~0; 2095#L200-1 assume !(0 != ~pumpRunning~0); 2071#L233 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2056#L291 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 2065#L265-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2077#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2076#L136-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 2072#L393-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 2069#L393-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 2067#L399-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1999#L269-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1998#L240 havoc __utac_acc__Specification3_spec__1_#t~ret35, __utac_acc__Specification3_spec__1_#t~ret36, __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 1808#L91 __utac_acc__Specification3_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret35;havoc __utac_acc__Specification3_spec__1_#t~ret35; 1809#L448 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1870#L123 __utac_acc__Specification3_spec__1_#t~ret36 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret36;havoc __utac_acc__Specification3_spec__1_#t~ret36; 1871#L454 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 1781#L454-1 [2019-12-07 13:15:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:22,987 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-12-07 13:15:22,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:22,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277988969] [2019-12-07 13:15:22,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:23,046 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:15:23,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:23,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1288438010, now seen corresponding path program 1 times [2019-12-07 13:15:23,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:23,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316675458] [2019-12-07 13:15:23,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:23,056 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:15:23,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:15:23,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1486191252, now seen corresponding path program 1 times [2019-12-07 13:15:23,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:15:23,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319194139] [2019-12-07 13:15:23,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:15:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:15:23,100 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:15:46,798 WARN L192 SmtUtils]: Spent 23.57 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 13:15:59,039 WARN L192 SmtUtils]: Spent 12.24 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 13:15:59,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:15:59 BoogieIcfgContainer [2019-12-07 13:15:59,094 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 13:15:59,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:15:59,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:15:59,094 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:15:59,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:15:21" (3/4) ... [2019-12-07 13:15:59,097 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 13:15:59,134 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e9075538-cfc9-4ac8-882e-db8c52952ad9/bin/uautomizer/witness.graphml [2019-12-07 13:15:59,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:15:59,135 INFO L168 Benchmark]: Toolchain (without parser) took 38178.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 945.2 MB in the beginning and 987.5 MB in the end (delta: -42.3 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:15:59,136 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:15:59,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:15:59,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:15:59,136 INFO L168 Benchmark]: Boogie Preprocessor took 29.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:15:59,137 INFO L168 Benchmark]: RCFGBuilder took 462.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:15:59,137 INFO L168 Benchmark]: BuchiAutomizer took 37259.44 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.2 MB). Free memory was 1.0 GB in the beginning and 989.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:15:59,137 INFO L168 Benchmark]: Witness Printer took 40.10 ms. Allocated memory is still 1.2 GB. Free memory was 989.8 MB in the beginning and 987.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:15:59,139 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 462.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37259.44 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.2 MB). Free memory was 1.0 GB in the beginning and 989.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. * Witness Printer took 40.10 ms. Allocated memory is still 1.2 GB. Free memory was 989.8 MB in the beginning and 987.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 408 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 36.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 408 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 408 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 605 SDtfs, 1483 SDslu, 1676 SDs, 0 SdLazy, 117 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 164]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4188} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@326dfe46=0, NULL=15310, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6df9a08d=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12b65f08=0, NULL=4188, NULL=4192, NULL=15318, NULL=0, NULL=0, NULL=4194, retValue_acc=0, NULL=17562, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4002f4cc=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, NULL=0, NULL=0, NULL=15311, NULL=0, tmp___1=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@581a1ef9=0, NULL=4190, NULL=12467, cleanupTimeShifts=4, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25bec1a3=0, tmp=0, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, NULL=17560, \result=1, NULL=0, NULL=0, NULL=15312, \result=0, tmp___0=0, NULL=17559, NULL=0, \result=1, retValue_acc=1, NULL=15315, head=0, pumpRunning=0, \result=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, \result=1, NULL=15313, NULL=4195, NULL=15316, NULL=0, NULL=0, tmp=1, NULL=4530, tmp___2=55, NULL=4189, NULL=17561, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=15309, NULL=4193, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5112f7fa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44f6a054=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be54022=0, NULL=12468, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53021913=55, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@783e0163=0, tmp___1=0, head=0, NULL=0, NULL=0, NULL=15317, NULL=0, NULL=0, NULL=12469, NULL=4191, NULL=0, NULL=15314} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 Loop: [L164] COND TRUE 1 [L166] COND TRUE splverifierCounter < 4 [L172] tmp = __VERIFIER_nondet_int() [L174] COND FALSE !(\read(tmp)) [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND TRUE \read(tmp___2) [L233] COND FALSE !(\read(pumpRunning)) [L240] COND TRUE \read(systemActive) [L288] int tmp ; [L291] COND FALSE !(\read(pumpRunning)) [L262] int tmp ; [L265] COND TRUE ! pumpRunning [L385] int retValue_acc ; [L386] int tmp ; [L387] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L391] tmp = isHighWaterSensorDry() [L393] COND TRUE \read(tmp) [L394] tmp___0 = 0 [L398] retValue_acc = tmp___0 [L399] return (retValue_acc); [L267] tmp = isHighWaterLevel() [L269] COND FALSE !(\read(tmp)) [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L452] tmp___0 = getWaterLevel() [L454] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...