./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.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_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/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 1610387a50b580a3de8e20f991e711af2b541458 ............................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:56:01,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:56:01,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:56:01,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:56:01,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:56:01,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:56:01,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:56:01,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:56:01,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:56:01,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:56:01,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:56:01,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:56:01,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:56:01,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:56:01,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:56:01,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:56:01,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:56:01,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:56:01,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:56:01,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:56:01,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:56:01,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:56:01,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:56:01,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:56:01,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:56:01,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:56:01,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:56:01,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:56:01,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:56:01,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:56:01,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:56:01,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:56:01,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:56:01,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:56:01,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:56:01,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:56:01,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:56:01,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:56:01,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:56:01,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:56:01,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:56:01,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:56:01,503 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:56:01,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:56:01,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:56:01,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:56:01,505 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:56:01,505 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:56:01,505 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:56:01,505 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:56:01,505 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:56:01,506 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:56:01,506 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:56:01,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:56:01,506 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:56:01,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:56:01,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:56:01,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:56:01,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:56:01,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:56:01,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:56:01,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:56:01,507 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:56:01,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:56:01,508 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:56:01,508 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:56:01,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:56:01,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:56:01,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:56:01,509 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:56:01,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:56:01,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:56:01,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:56:01,509 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:56:01,510 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:56:01,510 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_74869ca6-5573-4240-9b52-bcbc8db0eb56/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 -> 1610387a50b580a3de8e20f991e711af2b541458 [2019-12-07 18:56:01,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:56:01,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:56:01,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:56:01,624 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:56:01,625 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:56:01,625 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-12-07 18:56:01,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/data/493887509/f93159b5ab064e6cb0fa929e89fa8082/FLAG3d1086797 [2019-12-07 18:56:02,051 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:56:02,052 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-12-07 18:56:02,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/data/493887509/f93159b5ab064e6cb0fa929e89fa8082/FLAG3d1086797 [2019-12-07 18:56:02,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/data/493887509/f93159b5ab064e6cb0fa929e89fa8082 [2019-12-07 18:56:02,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:56:02,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:56:02,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:56:02,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:56:02,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:56:02,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a523291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02, skipping insertion in model container [2019-12-07 18:56:02,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:56:02,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:56:02,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:56:02,725 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:56:02,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:56:02,802 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:56:02,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02 WrapperNode [2019-12-07 18:56:02,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:56:02,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:56:02,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:56:02,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:56:02,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:56:02,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:56:02,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:56:02,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:56:02,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... [2019-12-07 18:56:02,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:56:02,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:56:02,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:56:02,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:56:02,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/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 18:56:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:56:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:56:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:56:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:56:03,283 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:56:03,284 INFO L287 CfgBuilder]: Removed 106 assume(true) statements. [2019-12-07 18:56:03,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:56:03 BoogieIcfgContainer [2019-12-07 18:56:03,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:56:03,285 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:56:03,285 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:56:03,287 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:56:03,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:56:03,288 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:56:02" (1/3) ... [2019-12-07 18:56:03,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e41729d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:56:03, skipping insertion in model container [2019-12-07 18:56:03,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:56:03,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:56:02" (2/3) ... [2019-12-07 18:56:03,289 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e41729d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:56:03, skipping insertion in model container [2019-12-07 18:56:03,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:56:03,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:56:03" (3/3) ... [2019-12-07 18:56:03,290 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2019-12-07 18:56:03,318 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:56:03,318 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:56:03,318 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:56:03,318 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:56:03,318 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:56:03,318 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:56:03,318 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:56:03,318 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:56:03,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2019-12-07 18:56:03,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-12-07 18:56:03,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:56:03,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:56:03,352 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:56:03,352 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:56:03,352 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:56:03,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2019-12-07 18:56:03,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-12-07 18:56:03,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:56:03,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:56:03,357 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:56:03,357 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:56:03,361 INFO L794 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #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(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 12#L-1true havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 5#L376true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 38#L384true main_#t~ret73 := valid_product_#res;main_~tmp~8 := main_#t~ret73;havoc main_#t~ret73; 41#L926true assume 0 != main_~tmp~8; 20#L903true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 54#L323-1true [2019-12-07 18:56:03,361 INFO L796 eck$LassoCheckResult]: Loop: 54#L323-1true assume !false; 64#L56true assume test_~splverifierCounter~0 < 4; 81#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 19#L65true assume !(0 != test_~tmp~0); 15#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 74#L75true assume !(0 != test_~tmp___0~0); 72#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 60#L85true assume 0 != test_~tmp___2~0; 3#L91-1true assume !(0 != ~pumpRunning~0); 45#L128true assume !(0 != ~systemActive~0); 8#L135true havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 42#L798true __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 75#L317true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 54#L323-1true [2019-12-07 18:56:03,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:03,365 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 18:56:03,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:03,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23676432] [2019-12-07 18:56:03,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:03,563 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:56:03,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:03,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095042, now seen corresponding path program 1 times [2019-12-07 18:56:03,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:03,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491631179] [2019-12-07 18:56:03,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:03,575 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:56:03,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:03,577 INFO L82 PathProgramCache]: Analyzing trace with hash 41183896, now seen corresponding path program 1 times [2019-12-07 18:56:03,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:03,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048427536] [2019-12-07 18:56:03,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:56:03,657 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 18:56:03,657 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048427536] [2019-12-07 18:56:03,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:56:03,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:56:03,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123378281] [2019-12-07 18:56:03,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:56:03,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:56:03,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:56:03,723 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 6 states. [2019-12-07 18:56:03,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:56:03,836 INFO L93 Difference]: Finished difference Result 210 states and 291 transitions. [2019-12-07 18:56:03,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:56:03,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 291 transitions. [2019-12-07 18:56:03,843 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 133 [2019-12-07 18:56:03,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 189 states and 270 transitions. [2019-12-07 18:56:03,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2019-12-07 18:56:03,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2019-12-07 18:56:03,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 270 transitions. [2019-12-07 18:56:03,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:56:03,852 INFO L688 BuchiCegarLoop]: Abstraction has 189 states and 270 transitions. [2019-12-07 18:56:03,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 270 transitions. [2019-12-07 18:56:03,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 120. [2019-12-07 18:56:03,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 18:56:03,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2019-12-07 18:56:03,877 INFO L711 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-12-07 18:56:03,877 INFO L591 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-12-07 18:56:03,877 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:56:03,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2019-12-07 18:56:03,879 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2019-12-07 18:56:03,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:56:03,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:56:03,880 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:56:03,880 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:56:03,880 INFO L794 eck$LassoCheckResult]: Stem: 364#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #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(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 327#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 313#L376 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 314#L384 main_#t~ret73 := valid_product_#res;main_~tmp~8 := main_#t~ret73;havoc main_#t~ret73; 360#L926 assume 0 != main_~tmp~8; 340#L903 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 341#L323-1 [2019-12-07 18:56:03,880 INFO L796 eck$LassoCheckResult]: Loop: 341#L323-1 assume !false; 370#L56 assume test_~splverifierCounter~0 < 4; 377#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 338#L65 assume !(0 != test_~tmp~0); 332#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 333#L75 assume !(0 != test_~tmp___0~0); 379#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 374#L85 assume 0 != test_~tmp___2~0; 308#L91-1 assume !(0 != ~pumpRunning~0); 310#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 334#L160 assume !(0 != ~pumpRunning~0); 319#L135 havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 320#L798 __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 363#L317 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 341#L323-1 [2019-12-07 18:56:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:03,880 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 18:56:03,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:03,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404568103] [2019-12-07 18:56:03,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:03,936 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:56:03,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:03,936 INFO L82 PathProgramCache]: Analyzing trace with hash -353331282, now seen corresponding path program 1 times [2019-12-07 18:56:03,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:03,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730434751] [2019-12-07 18:56:03,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:03,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:56:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:03,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708244, now seen corresponding path program 1 times [2019-12-07 18:56:03,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:03,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135340284] [2019-12-07 18:56:03,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:56:03,989 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 18:56:03,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135340284] [2019-12-07 18:56:03,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:56:03,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:56:03,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329336834] [2019-12-07 18:56:04,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:56:04,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:56:04,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:56:04,032 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand 5 states. [2019-12-07 18:56:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:56:04,109 INFO L93 Difference]: Finished difference Result 397 states and 578 transitions. [2019-12-07 18:56:04,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:56:04,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 578 transitions. [2019-12-07 18:56:04,114 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 294 [2019-12-07 18:56:04,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 397 states and 578 transitions. [2019-12-07 18:56:04,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 397 [2019-12-07 18:56:04,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 397 [2019-12-07 18:56:04,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 397 states and 578 transitions. [2019-12-07 18:56:04,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:56:04,121 INFO L688 BuchiCegarLoop]: Abstraction has 397 states and 578 transitions. [2019-12-07 18:56:04,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states and 578 transitions. [2019-12-07 18:56:04,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 234. [2019-12-07 18:56:04,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-12-07 18:56:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 328 transitions. [2019-12-07 18:56:04,135 INFO L711 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2019-12-07 18:56:04,135 INFO L591 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2019-12-07 18:56:04,135 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:56:04,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 328 transitions. [2019-12-07 18:56:04,136 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 168 [2019-12-07 18:56:04,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:56:04,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:56:04,137 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:56:04,137 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:56:04,137 INFO L794 eck$LassoCheckResult]: Stem: 908#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #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(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 862#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 848#L376 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 849#L384 main_#t~ret73 := valid_product_#res;main_~tmp~8 := main_#t~ret73;havoc main_#t~ret73; 902#L926 assume 0 != main_~tmp~8; 878#L903 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 879#L323-1 [2019-12-07 18:56:04,138 INFO L796 eck$LassoCheckResult]: Loop: 879#L323-1 assume !false; 920#L56 assume test_~splverifierCounter~0 < 4; 932#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1071#L65 assume !(0 != test_~tmp~0); 1069#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1068#L75 assume !(0 != test_~tmp___0~0); 937#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 928#L85 assume 0 != test_~tmp___2~0; 843#L91-1 assume !(0 != ~pumpRunning~0); 845#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 909#L160 assume !(0 != ~pumpRunning~0); 854#L135 havoc __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 855#L798 __utac_acc__Specification3_spec__1_#t~ret24 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 905#L317 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 941#L830 __utac_acc__Specification3_spec__1_#t~ret25 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 916#L323 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 879#L323-1 [2019-12-07 18:56:04,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:04,138 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 18:56:04,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:04,138 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163637453] [2019-12-07 18:56:04,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:04,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:56:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:04,183 INFO L82 PathProgramCache]: Analyzing trace with hash -248939424, now seen corresponding path program 1 times [2019-12-07 18:56:04,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:04,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253660434] [2019-12-07 18:56:04,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:04,190 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:56:04,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:56:04,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1621214202, now seen corresponding path program 1 times [2019-12-07 18:56:04,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:56:04,191 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787641007] [2019-12-07 18:56:04,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:56:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:56:04,237 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:56:24,832 WARN L192 SmtUtils]: Spent 20.52 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 18:56:36,036 WARN L192 SmtUtils]: Spent 11.20 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 18:56:36,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:56:36 BoogieIcfgContainer [2019-12-07 18:56:36,079 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:56:36,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:56:36,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:56:36,080 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:56:36,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:56:03" (3/4) ... [2019-12-07 18:56:36,082 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:56:36,116 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_74869ca6-5573-4240-9b52-bcbc8db0eb56/bin/uautomizer/witness.graphml [2019-12-07 18:56:36,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:56:36,117 INFO L168 Benchmark]: Toolchain (without parser) took 33680.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -106.8 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:36,118 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:56:36,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -140.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:36,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:36,118 INFO L168 Benchmark]: Boogie Preprocessor took 26.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:56:36,119 INFO L168 Benchmark]: RCFGBuilder took 413.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:36,119 INFO L168 Benchmark]: BuchiAutomizer took 32794.63 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -41.9 MB). Peak memory consumption was 246.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:36,119 INFO L168 Benchmark]: Witness Printer took 36.67 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: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:36,121 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -140.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 413.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 32794.63 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -41.9 MB). Peak memory consumption was 246.0 MB. Max. memory is 11.5 GB. * Witness Printer took 36.67 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: 9.7 MB). Peak memory consumption was 9.7 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 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 234 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 32.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 232 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 234 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 255 SDtfs, 799 SDslu, 1021 SDs, 0 SdLazy, 85 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7205} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=7208, NULL=7230, NULL=0, NULL=7205, NULL=7229, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4837b50b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@441d1526=68, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c174f65=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c3bb2a0=0, NULL=7210, NULL=7211, NULL=7214, methaneLevelCritical=0, NULL=7225, NULL=0, NULL=0, NULL=7227, tmp___1=0, NULL=0, NULL=7228, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69521fd3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@663bd32e=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66eb3bf5=0, tmp=0, NULL=7220, NULL=7226, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=7215, NULL=0, retValue_acc=0, NULL=0, NULL=7223, NULL=0, NULL=7221, tmp___0=0, NULL=0, NULL=7219, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=1, NULL=7224, head=0, pumpRunning=0, NULL=7209, NULL=7217, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e05294b=0, NULL=7212, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=7213, retValue_acc=1, NULL=7216, NULL=0, retValue_acc=1, tmp___2=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@401c6e2d=0, splverifierCounter=0, NULL=0, \result=0, NULL=7207, NULL=7218, tmp=0, tmp___1=0, head=0, NULL=0, NULL=7206, NULL=0, NULL=0, NULL=7222} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; [L917] int retValue_acc ; [L918] int tmp ; [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L157] int tmp ; [L160] COND FALSE !(\read(pumpRunning)) [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); [L321] tmp___0 = getWaterLevel() [L323] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...