./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/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 1b0c0c83f247eef1881f0b5170efc2ede9b08897 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 08:58:49,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:49,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:49,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:49,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:49,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:49,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:49,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:49,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:49,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:49,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:49,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:49,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:49,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:49,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:49,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:49,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:49,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:49,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:49,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:49,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:49,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:49,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:49,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:49,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:49,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:49,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:49,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:49,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:49,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:49,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:49,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:49,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:49,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:49,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:49,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:49,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:49,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:49,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:49,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:49,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:49,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:58:49,442 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:49,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:49,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:49,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:49,444 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:49,444 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:58:49,444 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:58:49,444 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:58:49,445 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:58:49,445 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:58:49,445 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:58:49,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:49,445 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:49,445 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:49,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:49,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:49,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:49,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:58:49,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:58:49,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:58:49,447 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:49,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:49,447 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:58:49,448 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:49,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:58:49,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:49,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:49,448 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:58:49,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:49,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:49,449 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:58:49,450 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:58:49,450 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/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/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 -> 1b0c0c83f247eef1881f0b5170efc2ede9b08897 [2019-10-22 08:58:49,474 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:49,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:49,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:49,490 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:49,492 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:49,493 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2019-10-22 08:58:49,541 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/data/c45d37ace/ba8f0366e82f4afb823b4fa3f379d257/FLAG0132061d6 [2019-10-22 08:58:49,993 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:50,000 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2019-10-22 08:58:50,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/data/c45d37ace/ba8f0366e82f4afb823b4fa3f379d257/FLAG0132061d6 [2019-10-22 08:58:50,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/data/c45d37ace/ba8f0366e82f4afb823b4fa3f379d257 [2019-10-22 08:58:50,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:50,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:50,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:50,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:50,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:50,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c87dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50, skipping insertion in model container [2019-10-22 08:58:50,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,056 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:50,110 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:50,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:50,428 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:50,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:50,566 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:50,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50 WrapperNode [2019-10-22 08:58:50,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:50,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:50,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:50,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:50,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:50,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:50,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:50,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:50,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... [2019-10-22 08:58:50,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:50,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:50,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:50,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:50,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/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 [2019-10-22 08:58:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:58:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:51,439 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:51,439 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-10-22 08:58:51,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:51 BoogieIcfgContainer [2019-10-22 08:58:51,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:51,441 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:58:51,441 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:58:51,445 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:58:51,447 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:51,447 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:58:50" (1/3) ... [2019-10-22 08:58:51,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cd22799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:51, skipping insertion in model container [2019-10-22 08:58:51,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:51,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50" (2/3) ... [2019-10-22 08:58:51,449 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cd22799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:51, skipping insertion in model container [2019-10-22 08:58:51,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:51,450 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:51" (3/3) ... [2019-10-22 08:58:51,451 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2019-10-22 08:58:51,497 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:58:51,497 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:58:51,497 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:58:51,498 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:51,499 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:51,499 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:58:51,500 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:51,500 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:58:51,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-10-22 08:58:51,542 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-10-22 08:58:51,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:51,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:51,552 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:51,552 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:51,552 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:58:51,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-10-22 08:58:51,558 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-10-22 08:58:51,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:51,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:51,559 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:51,559 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:51,564 INFO L791 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 5#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 4#L921true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 13#L929true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 43#L130true assume 0 != main_~tmp~0; 12#L103true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 116#L880-1true [2019-10-22 08:58:51,565 INFO L793 eck$LassoCheckResult]: Loop: 116#L880-1true assume !false; 84#L707true assume test_~splverifierCounter~0 < 4; 36#L708true test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 49#L716true assume !(0 != test_~tmp~7); 50#L716-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 110#L726true assume !(0 != test_~tmp___0~1); 113#L726-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 28#L736true assume 0 != test_~tmp___2~0; 3#L742-2true assume !(0 != ~pumpRunning~0); 107#L525true assume !(0 != ~systemActive~0); 30#L532true havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 9#L805-1true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 16#L874true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 116#L880-1true [2019-10-22 08:58:51,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:51,571 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:58:51,578 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:51,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446965601] [2019-10-22 08:58:51,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:51,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:51,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:52,394 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:52,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1679990667, now seen corresponding path program 1 times [2019-10-22 08:58:52,396 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:52,396 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230352426] [2019-10-22 08:58:52,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:52,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:52,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:52,408 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:52,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:52,410 INFO L82 PathProgramCache]: Analyzing trace with hash 34288271, now seen corresponding path program 1 times [2019-10-22 08:58:52,410 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:52,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788776407] [2019-10-22 08:58:52,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:52,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:52,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:52,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788776407] [2019-10-22 08:58:52,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:52,509 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:52,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253431630] [2019-10-22 08:58:52,582 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:52,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:52,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:52,598 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 6 states. [2019-10-22 08:58:52,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:52,752 INFO L93 Difference]: Finished difference Result 114 states and 163 transitions. [2019-10-22 08:58:52,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:52,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 163 transitions. [2019-10-22 08:58:52,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-10-22 08:58:52,767 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2019-10-22 08:58:52,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2019-10-22 08:58:52,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2019-10-22 08:58:52,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2019-10-22 08:58:52,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:52,771 INFO L688 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-10-22 08:58:52,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2019-10-22 08:58:52,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-10-22 08:58:52,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-10-22 08:58:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2019-10-22 08:58:52,800 INFO L711 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-10-22 08:58:52,800 INFO L591 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-10-22 08:58:52,800 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:52,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2019-10-22 08:58:52,802 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-10-22 08:58:52,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:52,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:52,803 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:52,803 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:52,804 INFO L791 eck$LassoCheckResult]: Stem: 340#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 251#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 249#L921 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 250#L929 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 266#L130 assume 0 != main_~tmp~0; 264#L103 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 265#L880-1 [2019-10-22 08:58:52,804 INFO L793 eck$LassoCheckResult]: Loop: 265#L880-1 assume !false; 344#L707 assume test_~splverifierCounter~0 < 4; 296#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 297#L716 assume !(0 != test_~tmp~7); 282#L716-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 310#L726 assume !(0 != test_~tmp___0~1); 352#L726-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 288#L736 assume 0 != test_~tmp___2~0; 246#L742-2 assume !(0 != ~pumpRunning~0); 247#L525 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 348#L583 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 283#L557-1 assume !(0 == ~pumpRunning~0); 280#L532 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 259#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 260#L874 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 265#L880-1 [2019-10-22 08:58:52,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:52,804 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:58:52,804 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:52,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169769795] [2019-10-22 08:58:52,805 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:52,805 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:52,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:53,145 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:53,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:53,146 INFO L82 PathProgramCache]: Analyzing trace with hash -2003597172, now seen corresponding path program 1 times [2019-10-22 08:58:53,146 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:53,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216607806] [2019-10-22 08:58:53,146 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,146 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:53,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:53,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216607806] [2019-10-22 08:58:53,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:53,160 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:53,161 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951960359] [2019-10-22 08:58:53,161 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:58:53,161 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:53,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:53,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:53,162 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2019-10-22 08:58:53,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:53,282 INFO L93 Difference]: Finished difference Result 154 states and 213 transitions. [2019-10-22 08:58:53,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:53,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 213 transitions. [2019-10-22 08:58:53,285 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2019-10-22 08:58:53,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 154 states and 213 transitions. [2019-10-22 08:58:53,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2019-10-22 08:58:53,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2019-10-22 08:58:53,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 213 transitions. [2019-10-22 08:58:53,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:53,292 INFO L688 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2019-10-22 08:58:53,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 213 transitions. [2019-10-22 08:58:53,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-10-22 08:58:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-22 08:58:53,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 213 transitions. [2019-10-22 08:58:53,302 INFO L711 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2019-10-22 08:58:53,302 INFO L591 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2019-10-22 08:58:53,305 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:58:53,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 213 transitions. [2019-10-22 08:58:53,307 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2019-10-22 08:58:53,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:53,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:53,308 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:53,308 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] [2019-10-22 08:58:53,308 INFO L791 eck$LassoCheckResult]: Stem: 619#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 517#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 515#L921 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 516#L929 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 534#L130 assume 0 != main_~tmp~0; 532#L103 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 533#L880-1 [2019-10-22 08:58:53,308 INFO L793 eck$LassoCheckResult]: Loop: 533#L880-1 assume !false; 623#L707 assume test_~splverifierCounter~0 < 4; 566#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 567#L716 assume !(0 != test_~tmp~7); 550#L716-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 583#L726 assume !(0 != test_~tmp___0~1); 633#L726-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 642#L736 assume 0 != test_~tmp___2~0; 513#L742-2 assume !(0 != ~pumpRunning~0); 514#L525 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 627#L583 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 551#L557-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 552#L845-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 611#L850-1 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 626#L685-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 620#L685-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 592#L691-1 processEnvironment__wrappee__highWaterSensor_#t~ret36 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret36;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36; 593#L561-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 559#L532 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 526#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 527#L874 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 533#L880-1 [2019-10-22 08:58:53,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:53,309 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:58:53,309 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:53,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454042605] [2019-10-22 08:58:53,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:53,608 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:53,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:53,609 INFO L82 PathProgramCache]: Analyzing trace with hash 456147480, now seen corresponding path program 1 times [2019-10-22 08:58:53,609 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:53,609 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709083896] [2019-10-22 08:58:53,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,610 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:53,621 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:53,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:53,627 INFO L82 PathProgramCache]: Analyzing trace with hash 912218674, now seen corresponding path program 1 times [2019-10-22 08:58:53,627 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:53,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94272281] [2019-10-22 08:58:53,627 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,627 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:53,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:53,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94272281] [2019-10-22 08:58:53,678 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:53,678 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:53,678 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510017841] [2019-10-22 08:58:53,832 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:53,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:53,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:53,833 INFO L87 Difference]: Start difference. First operand 154 states and 213 transitions. cyclomatic complexity: 61 Second operand 5 states. [2019-10-22 08:58:53,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:53,961 INFO L93 Difference]: Finished difference Result 513 states and 712 transitions. [2019-10-22 08:58:53,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:53,963 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 513 states and 712 transitions. [2019-10-22 08:58:53,968 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 372 [2019-10-22 08:58:53,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 513 states to 513 states and 712 transitions. [2019-10-22 08:58:53,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 513 [2019-10-22 08:58:53,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 513 [2019-10-22 08:58:53,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 513 states and 712 transitions. [2019-10-22 08:58:53,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:53,982 INFO L688 BuchiCegarLoop]: Abstraction has 513 states and 712 transitions. [2019-10-22 08:58:53,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states and 712 transitions. [2019-10-22 08:58:54,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 302. [2019-10-22 08:58:54,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-10-22 08:58:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 412 transitions. [2019-10-22 08:58:54,008 INFO L711 BuchiCegarLoop]: Abstraction has 302 states and 412 transitions. [2019-10-22 08:58:54,009 INFO L591 BuchiCegarLoop]: Abstraction has 302 states and 412 transitions. [2019-10-22 08:58:54,009 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:58:54,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 412 transitions. [2019-10-22 08:58:54,010 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 212 [2019-10-22 08:58:54,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:54,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:54,011 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:54,012 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:54,012 INFO L791 eck$LassoCheckResult]: Stem: 1304#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;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);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 1202#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1200#L921 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1201#L929 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1218#L130 assume 0 != main_~tmp~0; 1214#L103 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1215#L880-1 [2019-10-22 08:58:54,013 INFO L793 eck$LassoCheckResult]: Loop: 1215#L880-1 assume !false; 1463#L707 assume test_~splverifierCounter~0 < 4; 1247#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 1248#L716 assume !(0 != test_~tmp~7); 1234#L716-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 1266#L726 assume !(0 != test_~tmp___0~1); 1327#L726-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 1238#L736 assume 0 != test_~tmp___2~0; 1198#L742-2 assume !(0 != ~pumpRunning~0); 1199#L525 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1317#L583 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1231#L557-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1232#L845-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1296#L850-1 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 1316#L685-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 1305#L685-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1276#L691-1 processEnvironment__wrappee__highWaterSensor_#t~ret36 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret36;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36; 1277#L561-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1250#L532 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1353#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 1354#L874 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1349#L837 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 1350#L880 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1215#L880-1 [2019-10-22 08:58:54,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:54,013 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-10-22 08:58:54,013 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:54,014 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746524941] [2019-10-22 08:58:54,014 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,014 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:54,259 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:54,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:54,260 INFO L82 PathProgramCache]: Analyzing trace with hash 271071754, now seen corresponding path program 1 times [2019-10-22 08:58:54,260 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:54,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666470955] [2019-10-22 08:58:54,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:54,269 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:54,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:54,269 INFO L82 PathProgramCache]: Analyzing trace with hash 468824996, now seen corresponding path program 1 times [2019-10-22 08:58:54,270 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:54,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105230631] [2019-10-22 08:58:54,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:54,574 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:54,681 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-10-22 08:59:13,259 WARN L191 SmtUtils]: Spent 18.52 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:59:24,331 WARN L191 SmtUtils]: Spent 11.07 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:59:24,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:59:24 BoogieIcfgContainer [2019-10-22 08:59:24,388 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:59:24,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:24,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:24,389 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:24,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:51" (3/4) ... [2019-10-22 08:59:24,392 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:59:24,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d0ad1527-551b-4b12-8b47-fd9fe540694e/bin/uautomizer/witness.graphml [2019-10-22 08:59:24,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:24,442 INFO L168 Benchmark]: Toolchain (without parser) took 34400.06 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 373.3 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -247.4 MB). Peak memory consumption was 125.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:24,442 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:24,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:24,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:24,443 INFO L168 Benchmark]: Boogie Preprocessor took 38.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:24,444 INFO L168 Benchmark]: RCFGBuilder took 748.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:24,444 INFO L168 Benchmark]: BuchiAutomizer took 32947.20 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 218.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -138.1 MB). Peak memory consumption was 398.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:24,444 INFO L168 Benchmark]: Witness Printer took 52.41 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:24,446 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 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 523.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 748.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 32947.20 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 218.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -138.1 MB). Peak memory consumption was 398.8 MB. Max. memory is 11.5 GB. * Witness Printer took 52.41 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 302 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 32.2s. Construction of modules took 0.2s. 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, 211 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 302 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 541 SDtfs, 1194 SDslu, 742 SDs, 0 SdLazy, 109 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 706]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6671} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=6671, NULL=-9, NULL=0, NULL=0, NULL=0, NULL=-18, NULL=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, NULL=0, NULL=0, NULL=-23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5de183eb=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c7125e9=0, tmp___1=0, NULL=-14, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22f0b3eb=0, NULL=-22, NULL=-8, NULL=-17, tmp=0, cleanupTimeShifts=4, NULL=-1, NULL=-13, NULL=-12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37d1d2ad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46690f90=0, tmp=0, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=6670, \result=1, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=-15, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=-10, NULL=-20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b3c7abf=0, NULL=0, NULL=0, \result=1, NULL=-5, NULL=-19, NULL=-4, NULL=-6, retValue_acc=1, tmp___2=59, NULL=-2, tmp___0=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e84c169=0, splverifierCounter=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36f6d6d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65273598=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@755abc75=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4da5da8c=0, tmp___1=0, head=0, NULL=0, tmp=0, NULL=-21, NULL=0, NULL=-24, NULL=0, NULL=-16, NULL=0, NULL=0, NULL=-11, NULL=-7, NULL=0, NULL=-3} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int pumpRunning = 0; [L518] int systemActive = 1; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L925] int retValue_acc ; [L928] retValue_acc = 1 [L929] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 Loop: [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L525] COND FALSE !(\read(pumpRunning)) [L532] COND TRUE \read(systemActive) [L580] int tmp ; [L583] COND FALSE !(\read(pumpRunning)) [L554] int tmp ; [L557] COND TRUE ! pumpRunning [L677] int retValue_acc ; [L678] int tmp ; [L679] int tmp___0 ; [L842] int retValue_acc ; [L845] COND TRUE waterLevel < 2 [L846] retValue_acc = 1 [L847] return (retValue_acc); [L683] tmp = isHighWaterSensorDry() [L685] COND TRUE \read(tmp) [L686] tmp___0 = 0 [L690] retValue_acc = tmp___0 [L691] return (retValue_acc); [L559] tmp = isHighWaterLevel() [L561] COND FALSE !(\read(tmp)) [L866] int tmp ; [L867] int tmp___0 ; [L868] int tmp___1 ; [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] return (retValue_acc); [L872] tmp = isMethaneLevelCritical() [L874] COND FALSE !(\read(tmp)) [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] return (retValue_acc); [L878] tmp___0 = getWaterLevel() [L880] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...