./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product45.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_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/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 8c7c11659b56a65fd9b011a28c96b3117f33c316 .................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:55:36,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:55:36,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:55:36,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:55:36,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:55:36,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:55:36,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:55:36,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:55:36,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:55:36,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:55:36,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:55:36,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:55:36,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:55:36,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:55:36,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:55:36,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:55:36,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:55:36,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:55:36,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:55:36,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:55:36,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:55:36,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:55:36,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:55:36,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:55:36,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:55:36,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:55:36,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:55:36,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:55:36,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:55:36,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:55:36,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:55:36,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:55:36,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:55:36,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:55:36,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:55:36,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:55:36,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:55:36,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:55:36,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:55:36,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:55:36,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:55:36,265 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:55:36,276 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:55:36,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:55:36,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:55:36,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:55:36,277 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:55:36,277 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:55:36,277 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:55:36,277 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:55:36,277 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:55:36,277 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:55:36,278 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:55:36,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:55:36,278 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:55:36,278 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:55:36,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:55:36,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:55:36,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:55:36,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:55:36,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:55:36,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:55:36,279 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:55:36,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:55:36,279 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:55:36,279 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:55:36,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:55:36,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:55:36,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:55:36,279 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:55:36,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:55:36,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:55:36,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:55:36,280 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:55:36,281 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:55:36,281 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_d8e3dd54-bc74-440e-b208-f870168b10b7/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 -> 8c7c11659b56a65fd9b011a28c96b3117f33c316 [2019-12-07 17:55:36,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:55:36,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:55:36,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:55:36,393 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:55:36,394 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:55:36,394 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c [2019-12-07 17:55:36,437 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/data/e9d21af38/03e45d1970d24a5b9399fbeebd0a2877/FLAG6bf7adc0b [2019-12-07 17:55:36,916 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:55:36,916 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c [2019-12-07 17:55:36,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/data/e9d21af38/03e45d1970d24a5b9399fbeebd0a2877/FLAG6bf7adc0b [2019-12-07 17:55:36,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/data/e9d21af38/03e45d1970d24a5b9399fbeebd0a2877 [2019-12-07 17:55:36,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:55:36,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:55:36,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:55:36,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:55:36,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:55:36,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:55:36" (1/1) ... [2019-12-07 17:55:36,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374d8a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:36, skipping insertion in model container [2019-12-07 17:55:36,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:55:36" (1/1) ... [2019-12-07 17:55:36,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:55:36,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:55:37,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:55:37,218 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:55:37,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:55:37,285 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:55:37,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37 WrapperNode [2019-12-07 17:55:37,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:55:37,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:55:37,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:55:37,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:55:37,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:55:37,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:55:37,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:55:37,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:55:37,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... [2019-12-07 17:55:37,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:55:37,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:55:37,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:55:37,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:55:37,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/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 17:55:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:55:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:55:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:55:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:55:37,828 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:55:37,828 INFO L287 CfgBuilder]: Removed 192 assume(true) statements. [2019-12-07 17:55:37,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:55:37 BoogieIcfgContainer [2019-12-07 17:55:37,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:55:37,830 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:55:37,830 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:55:37,832 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:55:37,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:55:37,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:55:36" (1/3) ... [2019-12-07 17:55:37,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75f1aaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:55:37, skipping insertion in model container [2019-12-07 17:55:37,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:55:37,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:55:37" (2/3) ... [2019-12-07 17:55:37,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75f1aaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:55:37, skipping insertion in model container [2019-12-07 17:55:37,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:55:37,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:55:37" (3/3) ... [2019-12-07 17:55:37,835 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2019-12-07 17:55:37,862 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:55:37,862 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:55:37,862 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:55:37,863 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:55:37,863 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:55:37,863 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:55:37,863 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:55:37,863 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:55:37,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2019-12-07 17:55:37,894 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-12-07 17:55:37,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:55:37,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:55:37,900 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:55:37,900 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:55:37,900 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:55:37,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2019-12-07 17:55:37,905 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-12-07 17:55:37,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:55:37,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:55:37,906 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:55:37,906 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:55:37,909 INFO L794 eck$LassoCheckResult]: Stem: 97#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~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 6#L-1true havoc main_#res;havoc main_#t~ret12, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 45#L301true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 56#L309true main_#t~ret12 := valid_product_#res;main_~tmp~1 := main_#t~ret12;havoc main_#t~ret12; 41#L265true assume 0 != main_~tmp~1; 29#L238true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 114#L159-1true [2019-12-07 17:55:37,910 INFO L796 eck$LassoCheckResult]: Loop: 114#L159-1true assume !false; 80#L691true assume test_~splverifierCounter~0 < 4; 18#L692true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 44#L700true assume !(0 != test_~tmp~5); 46#L700-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 100#L710true assume !(0 != test_~tmp___0~1); 103#L710-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 10#L720true assume 0 != test_~tmp___2~0; 116#L726-2true assume !(0 != ~pumpRunning~0); 98#L754true assume !(0 != ~systemActive~0); 14#L761true havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 126#L90-3true __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; 123#L159true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 114#L159-1true [2019-12-07 17:55:37,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:55:37,914 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 17:55:37,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:55:37,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829811852] [2019-12-07 17:55:37,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:55:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,123 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:55:38,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:55:38,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1679313406, now seen corresponding path program 1 times [2019-12-07 17:55:38,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:55:38,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610454828] [2019-12-07 17:55:38,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:55:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,138 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:55:38,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:55:38,139 INFO L82 PathProgramCache]: Analyzing trace with hash 34965532, now seen corresponding path program 1 times [2019-12-07 17:55:38,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:55:38,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265491207] [2019-12-07 17:55:38,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:55:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:55:38,232 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 17:55:38,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265491207] [2019-12-07 17:55:38,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:55:38,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:55:38,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179704572] [2019-12-07 17:55:38,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:55:38,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:55:38,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:55:38,302 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 6 states. [2019-12-07 17:55:38,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:55:38,394 INFO L93 Difference]: Finished difference Result 126 states and 178 transitions. [2019-12-07 17:55:38,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:55:38,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 178 transitions. [2019-12-07 17:55:38,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-12-07 17:55:38,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 119 states and 171 transitions. [2019-12-07 17:55:38,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2019-12-07 17:55:38,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2019-12-07 17:55:38,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 171 transitions. [2019-12-07 17:55:38,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:55:38,405 INFO L688 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2019-12-07 17:55:38,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 171 transitions. [2019-12-07 17:55:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-12-07 17:55:38,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-12-07 17:55:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2019-12-07 17:55:38,429 INFO L711 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2019-12-07 17:55:38,429 INFO L591 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2019-12-07 17:55:38,429 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:55:38,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 171 transitions. [2019-12-07 17:55:38,431 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-12-07 17:55:38,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:55:38,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:55:38,431 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:55:38,431 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:55:38,432 INFO L794 eck$LassoCheckResult]: Stem: 382#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~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 275#L-1 havoc main_#res;havoc main_#t~ret12, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 276#L301 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 337#L309 main_#t~ret12 := valid_product_#res;main_~tmp~1 := main_#t~ret12;havoc main_#t~ret12; 333#L265 assume 0 != main_~tmp~1; 319#L238 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 320#L159-1 [2019-12-07 17:55:38,432 INFO L796 eck$LassoCheckResult]: Loop: 320#L159-1 assume !false; 369#L691 assume test_~splverifierCounter~0 < 4; 298#L692 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 299#L700 assume !(0 != test_~tmp~5); 278#L700-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 338#L710 assume !(0 != test_~tmp___0~1); 383#L710-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 284#L720 assume 0 != test_~tmp___2~0; 285#L726-2 assume !(0 != ~pumpRunning~0); 354#L754 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 374#L812 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret53, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 282#L786-1 assume !(0 == ~pumpRunning~0); 281#L761 havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 294#L90-3 __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; 388#L159 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 320#L159-1 [2019-12-07 17:55:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:55:38,432 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 17:55:38,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:55:38,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121946253] [2019-12-07 17:55:38,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:55:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,487 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:55:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:55:38,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1992761180, now seen corresponding path program 1 times [2019-12-07 17:55:38,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:55:38,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904792038] [2019-12-07 17:55:38,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:55:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:55:38,496 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 17:55:38,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904792038] [2019-12-07 17:55:38,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:55:38,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:55:38,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947697472] [2019-12-07 17:55:38,497 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:55:38,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:55:38,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:55:38,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:55:38,498 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-12-07 17:55:38,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:55:38,566 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2019-12-07 17:55:38,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:55:38,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 219 transitions. [2019-12-07 17:55:38,570 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-12-07 17:55:38,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 219 transitions. [2019-12-07 17:55:38,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2019-12-07 17:55:38,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2019-12-07 17:55:38,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 219 transitions. [2019-12-07 17:55:38,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:55:38,574 INFO L688 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2019-12-07 17:55:38,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 219 transitions. [2019-12-07 17:55:38,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-12-07 17:55:38,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-12-07 17:55:38,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 219 transitions. [2019-12-07 17:55:38,584 INFO L711 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2019-12-07 17:55:38,584 INFO L591 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2019-12-07 17:55:38,584 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:55:38,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 219 transitions. [2019-12-07 17:55:38,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-12-07 17:55:38,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:55:38,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:55:38,587 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:55:38,587 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 17:55:38,587 INFO L794 eck$LassoCheckResult]: Stem: 668#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~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string64.base, #t~string64.offset, 1);call write~init~int(80, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(117, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(109, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(112, #t~string64.base, 4 + #t~string64.offset, 1);call write~init~int(58, #t~string64.base, 5 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 6 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string70.base, #t~string70.offset, 1);call write~init~int(32, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 560#L-1 havoc main_#res;havoc main_#t~ret12, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 561#L301 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 625#L309 main_#t~ret12 := valid_product_#res;main_~tmp~1 := main_#t~ret12;havoc main_#t~ret12; 621#L265 assume 0 != main_~tmp~1; 607#L238 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 608#L159-1 [2019-12-07 17:55:38,588 INFO L796 eck$LassoCheckResult]: Loop: 608#L159-1 assume !false; 657#L691 assume test_~splverifierCounter~0 < 4; 586#L692 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 587#L700 assume !(0 != test_~tmp~5); 566#L700-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 626#L710 assume !(0 != test_~tmp___0~1); 671#L710-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 572#L720 assume 0 != test_~tmp___2~0; 573#L726-2 assume !(0 != ~pumpRunning~0); 669#L754 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 663#L812 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret53, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 567#L786-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 568#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 646#L135-1 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 637#L931-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 622#L931-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 592#L937-1 processEnvironment__wrappee__methaneQuery_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~6 := processEnvironment__wrappee__methaneQuery_#t~ret53;havoc processEnvironment__wrappee__methaneQuery_#t~ret53; 593#L790-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~6); 579#L761 havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 580#L90-3 __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; 680#L159 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 608#L159-1 [2019-12-07 17:55:38,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:55:38,588 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 17:55:38,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:55:38,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396893851] [2019-12-07 17:55:38,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:55:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,660 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:55:38,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:55:38,660 INFO L82 PathProgramCache]: Analyzing trace with hash 790147600, now seen corresponding path program 1 times [2019-12-07 17:55:38,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:55:38,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709724477] [2019-12-07 17:55:38,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:55:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,673 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:55:38,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:55:38,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1246218794, now seen corresponding path program 1 times [2019-12-07 17:55:38,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:55:38,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060209389] [2019-12-07 17:55:38,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:55:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:55:38,728 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:56:04,840 WARN L192 SmtUtils]: Spent 25.99 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 17:56:17,641 WARN L192 SmtUtils]: Spent 12.80 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 17:56:17,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:56:17 BoogieIcfgContainer [2019-12-07 17:56:17,694 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:56:17,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:56:17,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:56:17,695 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:56:17,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:55:37" (3/4) ... [2019-12-07 17:56:17,697 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:56:17,733 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d8e3dd54-bc74-440e-b208-f870168b10b7/bin/uautomizer/witness.graphml [2019-12-07 17:56:17,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:56:17,735 INFO L168 Benchmark]: Toolchain (without parser) took 40795.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 940.6 MB in the beginning and 1.0 GB in the end (delta: -106.8 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:56:17,735 INFO L168 Benchmark]: CDTParser took 0.18 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 17:56:17,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -142.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:56:17,736 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:56:17,736 INFO L168 Benchmark]: Boogie Preprocessor took 31.17 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:56:17,737 INFO L168 Benchmark]: RCFGBuilder took 467.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.9 MB in the end (delta: 76.2 MB). Peak memory consumption was 76.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:56:17,737 INFO L168 Benchmark]: BuchiAutomizer took 39864.79 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 999.9 MB in the beginning and 1.1 GB in the end (delta: -55.8 MB). Peak memory consumption was 225.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:56:17,737 INFO L168 Benchmark]: Witness Printer took 38.98 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:56:17,739 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 346.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -142.3 MB). Peak memory consumption was 23.3 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.17 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 467.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.9 MB in the end (delta: 76.2 MB). Peak memory consumption was 76.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39864.79 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 999.9 MB in the beginning and 1.1 GB in the end (delta: -55.8 MB). Peak memory consumption was 225.7 MB. Max. memory is 11.5 GB. * Witness Printer took 38.98 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: 8.3 MB). Peak memory consumption was 8.3 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 39.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 329 SDtfs, 654 SDslu, 59 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 690]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=21786, NULL=0, NULL=1, NULL=21789, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21c6026c=0, NULL=0, NULL=0, NULL=0, NULL=21783, NULL=0, NULL=0, NULL=0, NULL=7572, NULL=21781, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38949f9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41e0fc61=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@455ed367=49, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b24c283=0, NULL=21791, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63801efb=0, tmp=0, NULL=21782, NULL=0, NULL=21787, NULL=0, NULL=21780, tmp___1=0, tmp___0=0, NULL=21788, cleanupTimeShifts=4, NULL=24399, NULL=16032, NULL=21784, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33ce0dc5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@743d4558=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=21790, \result=0, NULL=9334, NULL=21779, NULL=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=0, NULL=21775, tmp=1, retValue_acc=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9333, tmp=0, retValue_acc=1, \result=1, NULL=0, retValue_acc=0, NULL=21785, tmp___2=49, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5df7d690=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14834255=0, \result=0, NULL=21776, NULL=21777, head=0, NULL=15625, tmp=0, NULL=0, NULL=21774, NULL=24400, NULL=21778, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L177] int cleanupTimeShifts = 4; [L483] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L747] int pumpRunning = 0; [L748] int systemActive = 1; [L256] int retValue_acc ; [L257] int tmp ; [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); [L263] tmp = valid_product() [L265] COND TRUE \read(tmp) [L681] int splverifierCounter ; [L682] int tmp ; [L683] int tmp___0 ; [L684] int tmp___1 ; [L685] int tmp___2 ; [L688] splverifierCounter = 0 Loop: [L690] COND TRUE 1 [L692] COND TRUE splverifierCounter < 4 [L698] tmp = __VERIFIER_nondet_int() [L700] COND FALSE !(\read(tmp)) [L708] tmp___0 = __VERIFIER_nondet_int() [L710] COND FALSE !(\read(tmp___0)) [L718] tmp___2 = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp___2) [L754] COND FALSE !(\read(pumpRunning)) [L761] COND TRUE \read(systemActive) [L809] int tmp ; [L812] COND FALSE !(\read(pumpRunning)) [L783] int tmp ; [L786] COND TRUE ! pumpRunning [L923] int retValue_acc ; [L924] int tmp ; [L925] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L929] tmp = isHighWaterSensorDry() [L931] COND TRUE \read(tmp) [L932] tmp___0 = 0 [L936] retValue_acc = tmp___0 [L937] return (retValue_acc); [L788] tmp = isHighWaterLevel() [L790] COND FALSE !(\read(tmp)) [L152] int tmp ; [L153] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L157] tmp = isMethaneLevelCritical() [L159] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...