./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.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_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/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 4366671714130af280ec4232c34176d9c997fd05 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:31:00,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:31:00,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:31:00,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:31:00,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:31:00,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:31:00,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:31:00,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:31:00,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:31:00,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:31:00,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:31:00,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:31:00,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:31:00,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:31:00,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:31:00,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:31:00,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:31:00,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:31:00,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:31:00,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:31:00,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:31:00,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:31:00,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:31:00,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:31:00,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:31:00,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:31:00,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:31:00,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:31:00,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:31:00,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:31:00,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:31:00,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:31:00,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:31:00,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:31:00,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:31:00,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:31:00,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:31:00,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:31:00,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:31:00,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:31:00,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:31:00,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:31:00,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:31:00,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:31:00,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:31:00,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:31:00,379 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:31:00,379 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:31:00,379 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:31:00,380 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:31:00,380 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:31:00,380 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:31:00,380 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:31:00,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:31:00,380 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:31:00,380 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:31:00,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:31:00,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:31:00,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:31:00,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:31:00,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:31:00,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:31:00,381 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:31:00,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:31:00,382 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:31:00,382 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:31:00,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:31:00,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:31:00,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:31:00,382 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:31:00,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:31:00,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:31:00,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:31:00,383 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:31:00,383 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:31:00,384 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_15080b1d-0823-407a-a2ae-6f8d373c0031/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 -> 4366671714130af280ec4232c34176d9c997fd05 [2019-12-07 17:31:00,484 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:31:00,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:31:00,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:31:00,499 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:31:00,499 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:31:00,500 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2019-12-07 17:31:00,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/data/1130c86de/3495685c08d740bb84e6f720090015e7/FLAG67e4e1578 [2019-12-07 17:31:00,938 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:31:00,939 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2019-12-07 17:31:00,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/data/1130c86de/3495685c08d740bb84e6f720090015e7/FLAG67e4e1578 [2019-12-07 17:31:00,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/data/1130c86de/3495685c08d740bb84e6f720090015e7 [2019-12-07 17:31:00,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:31:00,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:31:00,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:31:00,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:31:00,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:31:00,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:31:00" (1/1) ... [2019-12-07 17:31:00,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ecabc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:00, skipping insertion in model container [2019-12-07 17:31:00,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:31:00" (1/1) ... [2019-12-07 17:31:00,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:31:01,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:31:01,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:31:01,228 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:31:01,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:31:01,296 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:31:01,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01 WrapperNode [2019-12-07 17:31:01,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:31:01,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:31:01,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:31:01,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:31:01,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:31:01,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:31:01,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:31:01,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:31:01,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... [2019-12-07 17:31:01,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:31:01,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:31:01,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:31:01,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:31:01,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/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 17:31:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:31:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:31:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:31:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:31:01,862 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:31:01,862 INFO L287 CfgBuilder]: Removed 196 assume(true) statements. [2019-12-07 17:31:01,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:31:01 BoogieIcfgContainer [2019-12-07 17:31:01,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:31:01,863 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:31:01,863 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:31:01,865 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:31:01,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:31:01,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:31:00" (1/3) ... [2019-12-07 17:31:01,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45af2f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:31:01, skipping insertion in model container [2019-12-07 17:31:01,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:31:01,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:01" (2/3) ... [2019-12-07 17:31:01,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45af2f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:31:01, skipping insertion in model container [2019-12-07 17:31:01,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:31:01,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:31:01" (3/3) ... [2019-12-07 17:31:01,869 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2019-12-07 17:31:01,898 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:31:01,898 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:31:01,898 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:31:01,898 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:31:01,898 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:31:01,898 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:31:01,899 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:31:01,899 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:31:01,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states. [2019-12-07 17:31:01,930 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-12-07 17:31:01,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:31:01,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:31:01,936 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:01,936 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:01,936 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:31:01,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states. [2019-12-07 17:31:01,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-12-07 17:31:01,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:31:01,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:31:01,942 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:01,942 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:01,946 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 15#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~8, main_~tmp~3;havoc main_~retValue_acc~8;havoc main_~tmp~3; 22#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 14#L73true main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 10#L632true assume 0 != main_~tmp~3; 72#L606true ~methAndRunningLastTime~0 := 0; 129#L869true havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 131#L880-1true [2019-12-07 17:31:01,946 INFO L796 eck$LassoCheckResult]: Loop: 131#L880-1true assume !false; 125#L913true assume test_~splverifierCounter~0 < 4; 89#L914true test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 103#L922true assume !(0 != test_~tmp~9); 99#L922-1true test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 3#L932true assume !(0 != test_~tmp___0~2); 8#L932-1true test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 65#L942true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 69#L950-2true assume !(0 != ~pumpRunning~0); 90#L658true assume !(0 != ~systemActive~0); 6#L665true havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 41#L494-3true __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 128#L880true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 131#L880-1true [2019-12-07 17:31:01,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:01,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 17:31:01,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:01,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881990044] [2019-12-07 17:31:01,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,160 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:31:02,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:02,160 INFO L82 PathProgramCache]: Analyzing trace with hash 5923915, now seen corresponding path program 1 times [2019-12-07 17:31:02,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:02,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43514233] [2019-12-07 17:31:02,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:31:02,194 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 17:31:02,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43514233] [2019-12-07 17:31:02,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:31:02,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:31:02,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517389898] [2019-12-07 17:31:02,199 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:31:02,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:31:02,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:31:02,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:31:02,211 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 3 states. [2019-12-07 17:31:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:31:02,245 INFO L93 Difference]: Finished difference Result 130 states and 186 transitions. [2019-12-07 17:31:02,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:31:02,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 186 transitions. [2019-12-07 17:31:02,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-12-07 17:31:02,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 123 states and 178 transitions. [2019-12-07 17:31:02,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2019-12-07 17:31:02,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2019-12-07 17:31:02,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 178 transitions. [2019-12-07 17:31:02,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:31:02,256 INFO L688 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2019-12-07 17:31:02,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 178 transitions. [2019-12-07 17:31:02,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-12-07 17:31:02,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-07 17:31:02,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 178 transitions. [2019-12-07 17:31:02,279 INFO L711 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2019-12-07 17:31:02,280 INFO L591 BuchiCegarLoop]: Abstraction has 123 states and 178 transitions. [2019-12-07 17:31:02,280 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:31:02,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 178 transitions. [2019-12-07 17:31:02,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-12-07 17:31:02,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:31:02,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:31:02,282 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:02,282 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:02,282 INFO L794 eck$LassoCheckResult]: Stem: 387#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 289#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~8, main_~tmp~3;havoc main_~retValue_acc~8;havoc main_~tmp~3; 290#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 288#L73 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 284#L632 assume 0 != main_~tmp~3; 285#L606 ~methAndRunningLastTime~0 := 0; 361#L869 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 337#L880-1 [2019-12-07 17:31:02,283 INFO L796 eck$LassoCheckResult]: Loop: 337#L880-1 assume !false; 391#L913 assume test_~splverifierCounter~0 < 4; 374#L914 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 375#L922 assume !(0 != test_~tmp~9); 353#L922-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 271#L932 assume !(0 != test_~tmp___0~2); 273#L932-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 281#L942 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 358#L950-2 assume !(0 != ~pumpRunning~0); 359#L658 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 364#L716 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret47, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 365#L690-1 assume !(0 == ~pumpRunning~0); 276#L665 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 277#L494-3 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 335#L880 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 337#L880-1 [2019-12-07 17:31:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:02,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 17:31:02,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:02,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285828795] [2019-12-07 17:31:02,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,352 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:31:02,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:02,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1682371955, now seen corresponding path program 1 times [2019-12-07 17:31:02,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:02,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064200089] [2019-12-07 17:31:02,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:31:02,363 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 17:31:02,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064200089] [2019-12-07 17:31:02,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:31:02,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:31:02,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260165584] [2019-12-07 17:31:02,364 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:31:02,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:31:02,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:31:02,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:31:02,365 INFO L87 Difference]: Start difference. First operand 123 states and 178 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-12-07 17:31:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:31:02,426 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2019-12-07 17:31:02,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:31:02,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 232 transitions. [2019-12-07 17:31:02,429 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-12-07 17:31:02,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 167 states and 232 transitions. [2019-12-07 17:31:02,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167 [2019-12-07 17:31:02,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 167 [2019-12-07 17:31:02,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167 states and 232 transitions. [2019-12-07 17:31:02,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:31:02,433 INFO L688 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2019-12-07 17:31:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states and 232 transitions. [2019-12-07 17:31:02,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-12-07 17:31:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-12-07 17:31:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 232 transitions. [2019-12-07 17:31:02,440 INFO L711 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2019-12-07 17:31:02,440 INFO L591 BuchiCegarLoop]: Abstraction has 167 states and 232 transitions. [2019-12-07 17:31:02,440 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:31:02,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 232 transitions. [2019-12-07 17:31:02,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-12-07 17:31:02,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:31:02,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:31:02,442 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:02,442 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 17:31:02,442 INFO L794 eck$LassoCheckResult]: Stem: 691#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 586#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~8, main_~tmp~3;havoc main_~retValue_acc~8;havoc main_~tmp~3; 587#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 585#L73 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 580#L632 assume 0 != main_~tmp~3; 581#L606 ~methAndRunningLastTime~0 := 0; 659#L869 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 635#L880-1 [2019-12-07 17:31:02,443 INFO L796 eck$LassoCheckResult]: Loop: 635#L880-1 assume !false; 725#L913 assume test_~splverifierCounter~0 < 4; 678#L914 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 679#L922 assume !(0 != test_~tmp~9); 651#L922-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 565#L932 assume !(0 != test_~tmp___0~2); 567#L932-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 579#L942 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 656#L950-2 assume !(0 != ~pumpRunning~0); 658#L658 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 663#L716 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret47, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 664#L690-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 689#L534-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 690#L539-1 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 649#L835-3 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~0 := 1; 638#L835-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 598#L841-1 processEnvironment__wrappee__methaneQuery_#t~ret47 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret47;havoc processEnvironment__wrappee__methaneQuery_#t~ret47; 599#L694-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 572#L665 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 573#L494-3 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 633#L880 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 635#L880-1 [2019-12-07 17:31:02,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:02,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 17:31:02,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:02,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963728810] [2019-12-07 17:31:02,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:31:02,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:02,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1739369125, now seen corresponding path program 1 times [2019-12-07 17:31:02,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:02,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147643592] [2019-12-07 17:31:02,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:31:02,545 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 17:31:02,546 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147643592] [2019-12-07 17:31:02,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:31:02,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 17:31:02,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015113992] [2019-12-07 17:31:02,546 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:31:02,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:31:02,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:31:02,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:31:02,547 INFO L87 Difference]: Start difference. First operand 167 states and 232 transitions. cyclomatic complexity: 67 Second operand 7 states. [2019-12-07 17:31:02,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:31:02,700 INFO L93 Difference]: Finished difference Result 321 states and 439 transitions. [2019-12-07 17:31:02,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:31:02,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 439 transitions. [2019-12-07 17:31:02,703 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2019-12-07 17:31:02,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 321 states and 439 transitions. [2019-12-07 17:31:02,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 321 [2019-12-07 17:31:02,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 321 [2019-12-07 17:31:02,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 439 transitions. [2019-12-07 17:31:02,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:31:02,709 INFO L688 BuchiCegarLoop]: Abstraction has 321 states and 439 transitions. [2019-12-07 17:31:02,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 439 transitions. [2019-12-07 17:31:02,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 179. [2019-12-07 17:31:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-12-07 17:31:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 244 transitions. [2019-12-07 17:31:02,720 INFO L711 BuchiCegarLoop]: Abstraction has 179 states and 244 transitions. [2019-12-07 17:31:02,720 INFO L591 BuchiCegarLoop]: Abstraction has 179 states and 244 transitions. [2019-12-07 17:31:02,720 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 17:31:02,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 244 transitions. [2019-12-07 17:31:02,721 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-12-07 17:31:02,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:31:02,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:31:02,723 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:02,723 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 17:31:02,723 INFO L794 eck$LassoCheckResult]: Stem: 1196#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 1086#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~8, main_~tmp~3;havoc main_~retValue_acc~8;havoc main_~tmp~3; 1087#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1085#L73 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 1081#L632 assume 0 != main_~tmp~3; 1082#L606 ~methAndRunningLastTime~0 := 0; 1160#L869 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1134#L880-1 [2019-12-07 17:31:02,723 INFO L796 eck$LassoCheckResult]: Loop: 1134#L880-1 assume !false; 1203#L913 assume test_~splverifierCounter~0 < 4; 1177#L914 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 1178#L922 assume !(0 != test_~tmp~9); 1150#L922-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 1066#L932 assume !(0 != test_~tmp___0~2); 1068#L932-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 1078#L942 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1156#L950-2 assume !(0 != ~pumpRunning~0); 1159#L658 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1163#L716 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret47, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1164#L690-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 1193#L534-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 1194#L539-1 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 1148#L835-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~0 := 0; 1137#L835-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1098#L841-1 processEnvironment__wrappee__methaneQuery_#t~ret47 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret47;havoc processEnvironment__wrappee__methaneQuery_#t~ret47; 1099#L694-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 1073#L665 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 1074#L494-3 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 1132#L880 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 1134#L880-1 [2019-12-07 17:31:02,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:02,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-12-07 17:31:02,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:02,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330159191] [2019-12-07 17:31:02,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,778 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:31:02,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:02,779 INFO L82 PathProgramCache]: Analyzing trace with hash 780590809, now seen corresponding path program 1 times [2019-12-07 17:31:02,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:02,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533282236] [2019-12-07 17:31:02,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,792 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:31:02,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:02,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1741234861, now seen corresponding path program 1 times [2019-12-07 17:31:02,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:02,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123055782] [2019-12-07 17:31:02,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:02,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:31:26,962 WARN L192 SmtUtils]: Spent 23.98 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 17:31:39,590 WARN L192 SmtUtils]: Spent 12.62 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 17:31:39,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:31:39 BoogieIcfgContainer [2019-12-07 17:31:39,645 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:31:39,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:31:39,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:31:39,645 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:31:39,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:31:01" (3/4) ... [2019-12-07 17:31:39,648 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:31:39,691 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_15080b1d-0823-407a-a2ae-6f8d373c0031/bin/uautomizer/witness.graphml [2019-12-07 17:31:39,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:31:39,693 INFO L168 Benchmark]: Toolchain (without parser) took 38734.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 941.9 MB in the beginning and 1.0 GB in the end (delta: -101.9 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:39,693 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:31:39,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:39,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.56 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:39,694 INFO L168 Benchmark]: Boogie Preprocessor took 32.44 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:39,694 INFO L168 Benchmark]: RCFGBuilder took 486.88 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: 72.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:39,694 INFO L168 Benchmark]: BuchiAutomizer took 37781.65 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -43.6 MB). Peak memory consumption was 230.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:39,695 INFO L168 Benchmark]: Witness Printer took 46.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:39,696 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.56 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.44 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 486.88 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: 72.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37781.65 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -43.6 MB). Peak memory consumption was 230.8 MB. Max. memory is 11.5 GB. * Witness Printer took 46.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 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 7 locations. The remainder module has 179 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 37.3s. 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, 142 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 179 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 546 SDtfs, 600 SDslu, 892 SDs, 0 SdLazy, 200 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 912]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4211} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73839062=0, NULL=0, NULL=0, NULL=0, NULL=4211, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@308e2986=0, NULL=0, retValue_acc=0, NULL=0, NULL=4230, NULL=4233, methaneLevelCritical=0, NULL=4220, tmp___0=0, NULL=4224, NULL=4215, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77c5b516=0, tmp___1=0, tmp=0, NULL=4228, NULL=4221, NULL=4218, NULL=4236, NULL=4219, cleanupTimeShifts=4, NULL=4216, NULL=4239, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=4240, \result=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a0e2bdc=0, NULL=0, NULL=0, NULL=4231, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, \result=0, retValue_acc=1, NULL=4235, NULL=4217, tmp=1, NULL=0, NULL=4227, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@367dbad5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d3b2ddc=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fa07169=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@637ea221=0, NULL=4237, retValue_acc=0, retValue_acc=1, tmp=1, tmp___2=60, tmp___0=0, tmp___0=0, NULL=4229, splverifierCounter=0, methAndRunningLastTime=0, \result=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b51db01=0, NULL=0, tmp=0, NULL=4223, NULL=0, NULL=4222, NULL=0, NULL=4226, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40c6f694=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=4238, NULL=4232, NULL=4234, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L451] int waterLevel = 1; [L452] int methaneLevelCritical = 0; [L545] int cleanupTimeShifts = 4; [L650] int pumpRunning = 0; [L651] int systemActive = 1; [L863] int methAndRunningLastTime ; [L623] int retValue_acc ; [L624] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L630] tmp = valid_product() [L632] COND TRUE \read(tmp) [L868] methAndRunningLastTime = 0 [L903] int splverifierCounter ; [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L907] int tmp___2 ; [L910] splverifierCounter = 0 Loop: [L912] COND TRUE 1 [L914] COND TRUE splverifierCounter < 4 [L920] tmp = __VERIFIER_nondet_int() [L922] COND FALSE !(\read(tmp)) [L930] tmp___0 = __VERIFIER_nondet_int() [L932] COND FALSE !(\read(tmp___0)) [L940] tmp___2 = __VERIFIER_nondet_int() [L942] COND TRUE \read(tmp___2) [L849] systemActive = 1 [L658] COND FALSE !(\read(pumpRunning)) [L665] COND TRUE \read(systemActive) [L713] int tmp ; [L716] COND FALSE !(\read(pumpRunning)) [L687] int tmp ; [L690] COND TRUE ! pumpRunning [L827] int retValue_acc ; [L828] int tmp ; [L829] int tmp___0 ; [L531] int retValue_acc ; [L534] COND TRUE waterLevel < 2 [L535] retValue_acc = 1 [L536] return (retValue_acc); [L833] tmp = isHighWaterSensorDry() [L835] COND TRUE \read(tmp) [L836] tmp___0 = 0 [L840] retValue_acc = tmp___0 [L841] return (retValue_acc); [L692] tmp = isHighWaterLevel() [L694] COND FALSE !(\read(tmp)) [L873] int tmp ; [L874] int tmp___0 ; [L490] int retValue_acc ; [L493] retValue_acc = methaneLevelCritical [L494] return (retValue_acc); [L878] tmp = isMethaneLevelCritical() [L880] COND FALSE !(\read(tmp)) [L896] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...