./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/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 f25a9f8800d2b9b6ef21419533be8e4411f52f7f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-25 08:57:49,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:49,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:49,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:49,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:49,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:49,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:49,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:49,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:49,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:49,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:49,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:49,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:49,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:49,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:49,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:49,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:49,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:49,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:49,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:49,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:49,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:49,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:49,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:49,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:49,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:49,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:49,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:49,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:49,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:49,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:49,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:49,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:49,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:49,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:49,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:49,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:49,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:49,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:49,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:49,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:49,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:57:49,659 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:49,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:49,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:49,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:49,661 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:49,661 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:57:49,662 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:57:49,662 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:57:49,662 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:57:49,662 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:57:49,662 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:57:49,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:49,663 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:49,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:57:49,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:49,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:49,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:49,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:57:49,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:57:49,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:57:49,665 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:49,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:49,665 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:57:49,665 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:49,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:57:49,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:49,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:49,666 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:57:49,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:49,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:49,667 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:57:49,668 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:57:49,668 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_2a74473d-46d5-4391-aff1-9c47336fd4b5/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 -> f25a9f8800d2b9b6ef21419533be8e4411f52f7f [2019-11-25 08:57:49,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:49,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:49,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:49,828 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:49,828 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:49,829 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2019-11-25 08:57:49,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/data/8fe68512b/9efe05e2662f4fef9826ed86b0f621b7/FLAG243893de1 [2019-11-25 08:57:50,320 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:50,321 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2019-11-25 08:57:50,332 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/data/8fe68512b/9efe05e2662f4fef9826ed86b0f621b7/FLAG243893de1 [2019-11-25 08:57:50,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/data/8fe68512b/9efe05e2662f4fef9826ed86b0f621b7 [2019-11-25 08:57:50,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:50,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:50,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:50,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:50,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:50,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:50,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f2075e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50, skipping insertion in model container [2019-11-25 08:57:50,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:50,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:50,427 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:50,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:50,873 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:50,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:50,995 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:50,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50 WrapperNode [2019-11-25 08:57:50,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:50,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:50,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:50,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:51,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:51,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:51,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:51,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:51,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... [2019-11-25 08:57:51,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:51,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:51,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:51,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:51,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/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 [2019-11-25 08:57:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:57:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:51,875 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:51,875 INFO L284 CfgBuilder]: Removed 120 assume(true) statements. [2019-11-25 08:57:51,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:51 BoogieIcfgContainer [2019-11-25 08:57:51,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:51,877 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:57:51,877 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:57:51,879 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:57:51,880 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:51,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:57:50" (1/3) ... [2019-11-25 08:57:51,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@88e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:51, skipping insertion in model container [2019-11-25 08:57:51,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:51,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:50" (2/3) ... [2019-11-25 08:57:51,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@88e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:51, skipping insertion in model container [2019-11-25 08:57:51,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:51,883 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:51" (3/3) ... [2019-11-25 08:57:51,886 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2019-11-25 08:57:51,935 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:57:51,935 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:57:51,935 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:57:51,936 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:51,936 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:51,936 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:57:51,937 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:51,937 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:57:51,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states. [2019-11-25 08:57:51,992 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2019-11-25 08:57:51,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:51,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:52,001 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:52,001 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:52,001 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:57:52,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states. [2019-11-25 08:57:52,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2019-11-25 08:57:52,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:52,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:52,017 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:52,017 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:52,030 INFO L794 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 18#L-1true havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 23#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 17#L73true main_#t~ret38 := valid_product_#res;main_~tmp~5 := main_#t~ret38;havoc main_#t~ret38; 53#L538true assume 0 != main_~tmp~5; 5#L515true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 11#L343-1true [2019-11-25 08:57:52,031 INFO L796 eck$LassoCheckResult]: Loop: 11#L343-1true assume !false; 58#L272true assume test_~splverifierCounter~0 < 4; 68#L273true test_~tmp~3 := test_#t~nondet21;havoc test_#t~nondet21; 34#L281true assume !(0 != test_~tmp~3); 30#L281-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 90#L291true assume !(0 != test_~tmp___0~1); 86#L291-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 64#L301true assume 0 != test_~tmp___2~0; 27#L307-2true assume !(0 != ~pumpRunning~0); 49#L95true assume !(0 != ~systemActive~0); 6#L102true havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __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~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 76#L405-1true __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 52#L337true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 11#L343-1true [2019-11-25 08:57:52,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,038 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-25 08:57:52,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373612794] [2019-11-25 08:57:52,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,385 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1681191243, now seen corresponding path program 1 times [2019-11-25 08:57:52,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850802253] [2019-11-25 08:57:52,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,418 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,420 INFO L82 PathProgramCache]: Analyzing trace with hash 33087695, now seen corresponding path program 1 times [2019-11-25 08:57:52,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720967593] [2019-11-25 08:57:52,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:52,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720967593] [2019-11-25 08:57:52,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:52,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:57:52,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614223121] [2019-11-25 08:57:52,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:52,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:57:52,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:57:52,654 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 6 states. [2019-11-25 08:57:52,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:52,800 INFO L93 Difference]: Finished difference Result 90 states and 124 transitions. [2019-11-25 08:57:52,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:57:52,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 124 transitions. [2019-11-25 08:57:52,807 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-11-25 08:57:52,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 83 states and 117 transitions. [2019-11-25 08:57:52,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 83 [2019-11-25 08:57:52,822 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 83 [2019-11-25 08:57:52,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 117 transitions. [2019-11-25 08:57:52,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:52,824 INFO L688 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-11-25 08:57:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 117 transitions. [2019-11-25 08:57:52,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-11-25 08:57:52,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-25 08:57:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-11-25 08:57:52,857 INFO L711 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-11-25 08:57:52,857 INFO L591 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-11-25 08:57:52,857 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:57:52,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 117 transitions. [2019-11-25 08:57:52,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-11-25 08:57:52,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:52,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:52,860 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:52,860 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:52,860 INFO L794 eck$LassoCheckResult]: Stem: 261#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 229#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 230#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 224#L73 main_#t~ret38 := valid_product_#res;main_~tmp~5 := main_#t~ret38;havoc main_#t~ret38; 225#L538 assume 0 != main_~tmp~5; 202#L515 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 203#L343-1 [2019-11-25 08:57:52,861 INFO L796 eck$LassoCheckResult]: Loop: 203#L343-1 assume !false; 215#L272 assume test_~splverifierCounter~0 < 4; 270#L273 test_~tmp~3 := test_#t~nondet21;havoc test_#t~nondet21; 247#L281 assume !(0 != test_~tmp~3); 238#L281-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 245#L291 assume !(0 != test_~tmp___0~1); 263#L291-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 274#L301 assume 0 != test_~tmp___2~0; 232#L307-2 assume !(0 != ~pumpRunning~0); 239#L95 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 226#L127 assume !(0 == ~pumpRunning~0); 204#L102 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __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~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 205#L405-1 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 264#L337 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 203#L343-1 [2019-11-25 08:57:52,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,861 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-25 08:57:52,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027351650] [2019-11-25 08:57:52,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,939 INFO L82 PathProgramCache]: Analyzing trace with hash -619089842, now seen corresponding path program 1 times [2019-11-25 08:57:52,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,939 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788753704] [2019-11-25 08:57:52,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:52,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:52,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788753704] [2019-11-25 08:57:52,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:52,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:57:52,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270667859] [2019-11-25 08:57:52,952 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:57:52,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:52,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:57:52,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:57:52,952 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. cyclomatic complexity: 36 Second operand 3 states. [2019-11-25 08:57:53,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:53,016 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2019-11-25 08:57:53,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:57:53,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 177 transitions. [2019-11-25 08:57:53,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2019-11-25 08:57:53,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 130 states and 177 transitions. [2019-11-25 08:57:53,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 130 [2019-11-25 08:57:53,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 130 [2019-11-25 08:57:53,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130 states and 177 transitions. [2019-11-25 08:57:53,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:53,022 INFO L688 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2019-11-25 08:57:53,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states and 177 transitions. [2019-11-25 08:57:53,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-11-25 08:57:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-25 08:57:53,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2019-11-25 08:57:53,030 INFO L711 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2019-11-25 08:57:53,030 INFO L591 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2019-11-25 08:57:53,030 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:57:53,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 177 transitions. [2019-11-25 08:57:53,031 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2019-11-25 08:57:53,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:53,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:53,036 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:53,037 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] [2019-11-25 08:57:53,037 INFO L794 eck$LassoCheckResult]: Stem: 480#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 443#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 444#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 441#L73 main_#t~ret38 := valid_product_#res;main_~tmp~5 := main_#t~ret38;havoc main_#t~ret38; 442#L538 assume 0 != main_~tmp~5; 421#L515 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 422#L343-1 [2019-11-25 08:57:53,037 INFO L796 eck$LassoCheckResult]: Loop: 422#L343-1 assume !false; 433#L272 assume test_~splverifierCounter~0 < 4; 489#L273 test_~tmp~3 := test_#t~nondet21;havoc test_#t~nondet21; 465#L281 assume !(0 != test_~tmp~3); 456#L281-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 462#L291 assume !(0 != test_~tmp___0~1); 482#L291-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 493#L301 assume 0 != test_~tmp___2~0; 449#L307-2 assume !(0 != ~pumpRunning~0); 457#L95 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 445#L127 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 446#L445 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 472#L450 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 473#L247 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 503#L247-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 477#L253 processEnvironment_#t~ret1 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret1;havoc processEnvironment_#t~ret1; 464#L131 assume !(0 != processEnvironment_~tmp~0); 423#L102 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __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~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 424#L405-1 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 483#L337 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 422#L343-1 [2019-11-25 08:57:53,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,038 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-25 08:57:53,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418523655] [2019-11-25 08:57:53,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,156 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:53,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,157 INFO L82 PathProgramCache]: Analyzing trace with hash -21695270, now seen corresponding path program 1 times [2019-11-25 08:57:53,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98591169] [2019-11-25 08:57:53,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,179 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:53,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,181 INFO L82 PathProgramCache]: Analyzing trace with hash -6983296, now seen corresponding path program 1 times [2019-11-25 08:57:53,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200880994] [2019-11-25 08:57:53,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:53,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200880994] [2019-11-25 08:57:53,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:53,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:57:53,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751079657] [2019-11-25 08:57:53,475 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-25 08:57:53,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:53,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:57:53,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:57:53,557 INFO L87 Difference]: Start difference. First operand 130 states and 177 transitions. cyclomatic complexity: 49 Second operand 5 states. [2019-11-25 08:57:53,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:53,757 INFO L93 Difference]: Finished difference Result 434 states and 594 transitions. [2019-11-25 08:57:53,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:57:53,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 434 states and 594 transitions. [2019-11-25 08:57:53,762 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 314 [2019-11-25 08:57:53,767 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 434 states to 434 states and 594 transitions. [2019-11-25 08:57:53,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 434 [2019-11-25 08:57:53,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 434 [2019-11-25 08:57:53,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 434 states and 594 transitions. [2019-11-25 08:57:53,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:53,771 INFO L688 BuchiCegarLoop]: Abstraction has 434 states and 594 transitions. [2019-11-25 08:57:53,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states and 594 transitions. [2019-11-25 08:57:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 254. [2019-11-25 08:57:53,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-11-25 08:57:53,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 340 transitions. [2019-11-25 08:57:53,787 INFO L711 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2019-11-25 08:57:53,787 INFO L591 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2019-11-25 08:57:53,787 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:57:53,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 254 states and 340 transitions. [2019-11-25 08:57:53,790 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2019-11-25 08:57:53,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:53,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:53,791 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:53,791 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] [2019-11-25 08:57:53,791 INFO L794 eck$LassoCheckResult]: Stem: 1070#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1025#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1026#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1023#L73 main_#t~ret38 := valid_product_#res;main_~tmp~5 := main_#t~ret38;havoc main_#t~ret38; 1024#L538 assume 0 != main_~tmp~5; 1003#L515 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1004#L343-1 [2019-11-25 08:57:53,792 INFO L796 eck$LassoCheckResult]: Loop: 1004#L343-1 assume !false; 1015#L272 assume test_~splverifierCounter~0 < 4; 1079#L273 test_~tmp~3 := test_#t~nondet21;havoc test_#t~nondet21; 1252#L281 assume !(0 != test_~tmp~3); 1250#L281-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 1249#L291 assume !(0 != test_~tmp___0~1); 1248#L291-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1247#L301 assume 0 != test_~tmp___2~0; 1040#L307-2 assume !(0 != ~pumpRunning~0); 1041#L95 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1027#L127 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 1028#L445 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 1060#L450 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 1061#L247 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1100#L247-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1065#L253 processEnvironment_#t~ret1 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret1;havoc processEnvironment_#t~ret1; 1049#L131 assume !(0 != processEnvironment_~tmp~0); 1005#L102 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __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~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 1006#L405-1 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 1073#L337 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 1074#L437 __utac_acc__Specification3_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret26;havoc __utac_acc__Specification3_spec__1_#t~ret26; 1009#L343 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1004#L343-1 [2019-11-25 08:57:53,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,792 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-25 08:57:53,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118469977] [2019-11-25 08:57:53,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,883 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:53,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,885 INFO L82 PathProgramCache]: Analyzing trace with hash 625688428, now seen corresponding path program 1 times [2019-11-25 08:57:53,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723568597] [2019-11-25 08:57:53,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,909 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:53,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1878993554, now seen corresponding path program 1 times [2019-11-25 08:57:53,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60921261] [2019-11-25 08:57:53,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:54,139 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-25 08:58:22,946 WARN L192 SmtUtils]: Spent 28.73 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-25 08:58:36,571 WARN L192 SmtUtils]: Spent 13.62 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-25 08:58:36,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:58:36 BoogieIcfgContainer [2019-11-25 08:58:36,642 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:58:36,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:58:36,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:58:36,643 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:58:36,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:51" (3/4) ... [2019-11-25 08:58:36,646 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:58:36,698 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2a74473d-46d5-4391-aff1-9c47336fd4b5/bin/uautomizer/witness.graphml [2019-11-25 08:58:36,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:58:36,700 INFO L168 Benchmark]: Toolchain (without parser) took 46354.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 944.8 MB in the beginning and 964.1 MB in the end (delta: -19.3 MB). Peak memory consumption was 156.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:36,700 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:36,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:36,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.70 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:36,701 INFO L168 Benchmark]: Boogie Preprocessor took 37.81 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. [2019-11-25 08:58:36,702 INFO L168 Benchmark]: RCFGBuilder took 774.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:36,702 INFO L168 Benchmark]: BuchiAutomizer took 44765.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 44.0 MB). Free memory was 1.0 GB in the beginning and 973.0 MB in the end (delta: 75.1 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:36,703 INFO L168 Benchmark]: Witness Printer took 55.90 ms. Allocated memory is still 1.2 GB. Free memory was 973.0 MB in the beginning and 964.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:36,705 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 649.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.70 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.81 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 774.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44765.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 44.0 MB). Free memory was 1.0 GB in the beginning and 973.0 MB in the end (delta: 75.1 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. * Witness Printer took 55.90 ms. Allocated memory is still 1.2 GB. Free memory was 973.0 MB in the beginning and 964.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 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 254 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 44.0s. 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, 180 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 254 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 392 SDtfs, 891 SDslu, 536 SDs, 0 SdLazy, 108 SolverSat, 36 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: 271]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8775} State at position 1 is {NULL=8778, NULL=0, NULL=0, NULL=8775, NULL=8782, NULL=8789, NULL=0, NULL=0, retValue_acc=0, NULL=8787, methaneLevelCritical=0, NULL=8779, tmp___0=0, tmp=0, retValue_acc=0, NULL=0, NULL=0, NULL=8785, NULL=0, NULL=8791, NULL=0, tmp___1=0, NULL=8792, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37a33fdd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aae1f52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3aa13212=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23e4a4d2=0, NULL=8777, tmp=0, NULL=8793, tmp___0=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=8783, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a4cbc6e=0, NULL=8800, \result=0, retValue_acc=0, NULL=8790, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15be11d2=0, NULL=8799, \result=0, retValue_acc=1, NULL=0, NULL=8784, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8597e2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f7db01=63, tmp=1, NULL=8781, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@991ded3=0, \result=1, NULL=8788, NULL=8798, NULL=0, tmp=1, NULL=8780, retValue_acc=1, retValue_acc=1, tmp___2=63, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=8794, NULL=8797, tmp=0, NULL=8776, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71e2f2a7=0, head=0, NULL=8795, NULL=0, NULL=0, NULL=0, NULL=0, NULL=8796, NULL=8786} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L87] int pumpRunning = 0; [L88] int systemActive = 1; [L362] int waterLevel = 1; [L363] int methaneLevelCritical = 0; [L456] int cleanupTimeShifts = 4; [L721] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L529] int retValue_acc ; [L530] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L536] tmp = valid_product() [L538] COND TRUE \read(tmp) [L262] int splverifierCounter ; [L263] int tmp ; [L264] int tmp___0 ; [L265] int tmp___1 ; [L266] int tmp___2 ; [L269] splverifierCounter = 0 Loop: [L271] COND TRUE 1 [L273] COND TRUE splverifierCounter < 4 [L279] tmp = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp)) [L289] tmp___0 = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp___0)) [L299] tmp___2 = __VERIFIER_nondet_int() [L301] COND TRUE \read(tmp___2) [L95] COND FALSE !(\read(pumpRunning)) [L102] COND TRUE \read(systemActive) [L124] int tmp ; [L127] COND TRUE ! pumpRunning [L239] int retValue_acc ; [L240] int tmp ; [L241] int tmp___0 ; [L442] int retValue_acc ; [L445] COND TRUE waterLevel < 2 [L446] retValue_acc = 1 [L447] return (retValue_acc); [L245] tmp = isHighWaterSensorDry() [L247] COND TRUE \read(tmp) [L248] tmp___0 = 0 [L252] retValue_acc = tmp___0 [L253] return (retValue_acc); [L129] tmp = isHighWaterLevel() [L131] COND FALSE !(\read(tmp)) [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L401] int retValue_acc ; [L404] retValue_acc = methaneLevelCritical [L405] return (retValue_acc); [L335] tmp = isMethaneLevelCritical() [L337] COND FALSE !(\read(tmp)) [L433] int retValue_acc ; [L436] retValue_acc = waterLevel [L437] return (retValue_acc); [L341] tmp___0 = getWaterLevel() [L343] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...