./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/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 38d3472c1eb8f4a8d30b3059a3484ecd66f7fba4 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-08 13:23:03,955 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:23:03,956 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:23:03,962 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:23:03,962 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:23:03,963 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:23:03,964 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:23:03,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:23:03,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:23:03,967 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:23:03,968 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:23:03,968 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:23:03,969 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:23:03,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:23:03,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:23:03,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:23:03,972 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:23:03,973 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:23:03,974 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:23:03,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:23:03,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:23:03,977 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:23:03,979 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:23:03,979 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:23:03,979 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:23:03,980 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:23:03,981 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:23:03,981 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:23:03,982 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:23:03,983 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:23:03,983 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:23:03,983 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:23:03,984 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:23:03,984 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:23:03,984 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:23:03,985 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:23:03,985 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 13:23:03,996 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:23:03,996 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:23:03,997 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:23:03,997 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:23:03,997 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 13:23:03,998 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 13:23:03,998 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 13:23:03,998 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 13:23:03,998 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 13:23:03,998 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 13:23:03,998 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 13:23:03,999 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:23:03,999 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:23:03,999 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 13:23:03,999 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 13:23:03,999 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:23:03,999 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:23:03,999 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 13:23:04,000 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 13:23:04,000 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 13:23:04,000 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:23:04,000 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:23:04,000 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 13:23:04,000 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:23:04,001 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 13:23:04,001 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:23:04,001 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 13:23:04,001 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 13:23:04,001 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:23:04,001 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 13:23:04,001 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 13:23:04,002 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 13:23:04,002 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/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 -> 38d3472c1eb8f4a8d30b3059a3484ecd66f7fba4 [2018-12-08 13:23:04,025 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:23:04,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:23:04,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:23:04,034 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:23:04,035 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:23:04,035 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product51_true-unreach-call_false-termination.cil.c [2018-12-08 13:23:04,070 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/data/2e3aa32a8/9f4785c3e1f14f30a174bff5b773a4ee/FLAG99c250c78 [2018-12-08 13:23:04,460 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:23:04,460 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/sv-benchmarks/c/product-lines/minepump_spec2_product51_true-unreach-call_false-termination.cil.c [2018-12-08 13:23:04,466 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/data/2e3aa32a8/9f4785c3e1f14f30a174bff5b773a4ee/FLAG99c250c78 [2018-12-08 13:23:04,827 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/data/2e3aa32a8/9f4785c3e1f14f30a174bff5b773a4ee [2018-12-08 13:23:04,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:23:04,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:23:04,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:23:04,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:23:04,832 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:23:04,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:23:04" (1/1) ... [2018-12-08 13:23:04,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32094331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:04, skipping insertion in model container [2018-12-08 13:23:04,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:23:04" (1/1) ... [2018-12-08 13:23:04,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:23:04,861 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:23:05,032 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:23:05,074 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:23:05,124 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:23:05,140 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:23:05,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05 WrapperNode [2018-12-08 13:23:05,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:23:05,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:23:05,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:23:05,141 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:23:05,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:23:05,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:23:05,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:23:05,179 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:23:05,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... [2018-12-08 13:23:05,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:23:05,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:23:05,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:23:05,203 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:23:05,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/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 [2018-12-08 13:23:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 13:23:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 13:23:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:23:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:23:05,614 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:23:05,614 INFO L280 CfgBuilder]: Removed 162 assue(true) statements. [2018-12-08 13:23:05,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:23:05 BoogieIcfgContainer [2018-12-08 13:23:05,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:23:05,615 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 13:23:05,615 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 13:23:05,618 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 13:23:05,619 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:23:05,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 01:23:04" (1/3) ... [2018-12-08 13:23:05,620 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6150ca28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 01:23:05, skipping insertion in model container [2018-12-08 13:23:05,620 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:23:05,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:23:05" (2/3) ... [2018-12-08 13:23:05,621 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6150ca28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 01:23:05, skipping insertion in model container [2018-12-08 13:23:05,621 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:23:05,621 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:23:05" (3/3) ... [2018-12-08 13:23:05,622 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product51_true-unreach-call_false-termination.cil.c [2018-12-08 13:23:05,653 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 13:23:05,653 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 13:23:05,653 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 13:23:05,653 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 13:23:05,653 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 13:23:05,653 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 13:23:05,653 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 13:23:05,653 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 13:23:05,653 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 13:23:05,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2018-12-08 13:23:05,681 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2018-12-08 13:23:05,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:23:05,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:23:05,689 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:23:05,689 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:23:05,689 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 13:23:05,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2018-12-08 13:23:05,694 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2018-12-08 13:23:05,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:23:05,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:23:05,694 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:23:05,695 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:23:05,698 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.alloc(13);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 9#L-1true havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~10, main_~tmp~6;havoc main_~retValue_acc~10;havoc main_~tmp~6; 100#L399true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 103#L407true main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 3#L599true assume 0 != main_~tmp~6; 107#L575true ~methAndRunningLastTime~0 := 0; 106#L341true 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; 108#L352-1true [2018-12-08 13:23:05,698 INFO L796 eck$LassoCheckResult]: Loop: 108#L352-1true assume !false; 28#L56true assume test_~splverifierCounter~0 < 4; 122#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 11#L65true assume !(0 != test_~tmp~0); 10#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 45#L75true assume !(0 != test_~tmp___0~0); 43#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 110#L85true assume 0 != test_~tmp___2~0; 55#L91-1true assume !(0 != ~pumpRunning~0); 112#L129true assume !(0 != ~systemActive~0); 18#L136true havoc __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 117#L456true __utac_acc__Specification2_spec__2_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret25;havoc __utac_acc__Specification2_spec__2_#t~ret25; 105#L352true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 108#L352-1true [2018-12-08 13:23:05,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:23:05,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-12-08 13:23:05,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:23:05,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:23:05,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:05,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:23:05,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:05,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:23:05,839 INFO L82 PathProgramCache]: Analyzing trace with hash 13096595, now seen corresponding path program 1 times [2018-12-08 13:23:05,839 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:23:05,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:23:05,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:05,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:23:05,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:05,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:23:05,851 INFO L82 PathProgramCache]: Analyzing trace with hash 846393101, now seen corresponding path program 1 times [2018-12-08 13:23:05,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:23:05,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:23:05,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:05,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:23:05,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:23:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:23:05,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:23:05,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 13:23:05,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 13:23:05,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-08 13:23:05,983 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 6 states. [2018-12-08 13:23:06,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:23:06,072 INFO L93 Difference]: Finished difference Result 286 states and 415 transitions. [2018-12-08 13:23:06,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 13:23:06,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 286 states and 415 transitions. [2018-12-08 13:23:06,077 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 183 [2018-12-08 13:23:06,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 286 states to 265 states and 394 transitions. [2018-12-08 13:23:06,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2018-12-08 13:23:06,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2018-12-08 13:23:06,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 394 transitions. [2018-12-08 13:23:06,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 13:23:06,084 INFO L705 BuchiCegarLoop]: Abstraction has 265 states and 394 transitions. [2018-12-08 13:23:06,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 394 transitions. [2018-12-08 13:23:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 157. [2018-12-08 13:23:06,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-12-08 13:23:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 232 transitions. [2018-12-08 13:23:06,109 INFO L728 BuchiCegarLoop]: Abstraction has 157 states and 232 transitions. [2018-12-08 13:23:06,109 INFO L608 BuchiCegarLoop]: Abstraction has 157 states and 232 transitions. [2018-12-08 13:23:06,109 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 13:23:06,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 232 transitions. [2018-12-08 13:23:06,110 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2018-12-08 13:23:06,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:23:06,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:23:06,111 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:23:06,111 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:23:06,111 INFO L794 eck$LassoCheckResult]: Stem: 528#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.alloc(13);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 436#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~10, main_~tmp~6;havoc main_~retValue_acc~10;havoc main_~tmp~6; 437#L399 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 535#L407 main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 424#L599 assume 0 != main_~tmp~6; 425#L575 ~methAndRunningLastTime~0 := 0; 537#L341 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; 459#L352-1 [2018-12-08 13:23:06,111 INFO L796 eck$LassoCheckResult]: Loop: 459#L352-1 assume !false; 470#L56 assume test_~splverifierCounter~0 < 4; 471#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 440#L65 assume !(0 != test_~tmp~0); 438#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 439#L75 assume !(0 != test_~tmp___0~0); 493#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 494#L85 assume 0 != test_~tmp___2~0; 503#L91-1 assume !(0 != ~pumpRunning~0); 477#L129 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 520#L187 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 454#L161-1 assume !(0 == ~pumpRunning~0); 449#L136 havoc __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 450#L456 __utac_acc__Specification2_spec__2_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret25;havoc __utac_acc__Specification2_spec__2_#t~ret25; 536#L352 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 459#L352-1 [2018-12-08 13:23:06,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:23:06,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-12-08 13:23:06,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:23:06,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:23:06,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:23:06,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:06,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:23:06,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1355202001, now seen corresponding path program 1 times [2018-12-08 13:23:06,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:23:06,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:23:06,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,139 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 13:23:06,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:23:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:23:06,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:23:06,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:23:06,154 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 13:23:06,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:23:06,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:23:06,154 INFO L87 Difference]: Start difference. First operand 157 states and 232 transitions. cyclomatic complexity: 78 Second operand 3 states. [2018-12-08 13:23:06,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:23:06,218 INFO L93 Difference]: Finished difference Result 199 states and 278 transitions. [2018-12-08 13:23:06,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:23:06,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 199 states and 278 transitions. [2018-12-08 13:23:06,221 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2018-12-08 13:23:06,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 199 states to 199 states and 278 transitions. [2018-12-08 13:23:06,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 199 [2018-12-08 13:23:06,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 199 [2018-12-08 13:23:06,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 199 states and 278 transitions. [2018-12-08 13:23:06,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 13:23:06,224 INFO L705 BuchiCegarLoop]: Abstraction has 199 states and 278 transitions. [2018-12-08 13:23:06,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states and 278 transitions. [2018-12-08 13:23:06,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2018-12-08 13:23:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-12-08 13:23:06,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 278 transitions. [2018-12-08 13:23:06,232 INFO L728 BuchiCegarLoop]: Abstraction has 199 states and 278 transitions. [2018-12-08 13:23:06,232 INFO L608 BuchiCegarLoop]: Abstraction has 199 states and 278 transitions. [2018-12-08 13:23:06,232 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 13:23:06,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states and 278 transitions. [2018-12-08 13:23:06,233 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2018-12-08 13:23:06,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:23:06,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:23:06,234 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:23:06,234 INFO L867 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] [2018-12-08 13:23:06,235 INFO L794 eck$LassoCheckResult]: Stem: 896#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.alloc(13);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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.alloc(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);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(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.alloc(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.alloc(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.alloc(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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 797#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~10, main_~tmp~6;havoc main_~retValue_acc~10;havoc main_~tmp~6; 798#L399 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 904#L407 main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 786#L599 assume 0 != main_~tmp~6; 787#L575 ~methAndRunningLastTime~0 := 0; 906#L341 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; 907#L352-1 [2018-12-08 13:23:06,235 INFO L796 eck$LassoCheckResult]: Loop: 907#L352-1 assume !false; 964#L56 assume test_~splverifierCounter~0 < 4; 963#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 962#L65 assume !(0 != test_~tmp~0); 960#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 959#L75 assume !(0 != test_~tmp___0~0); 957#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 909#L85 assume 0 != test_~tmp___2~0; 875#L91-1 assume !(0 != ~pumpRunning~0); 935#L129 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 888#L187 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 818#L161-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 819#L496-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 869#L501-1 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 880#L289-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 879#L289-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 849#L295-1 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 850#L165-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 833#L136 havoc __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 969#L456 __utac_acc__Specification2_spec__2_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret25;havoc __utac_acc__Specification2_spec__2_#t~ret25; 967#L352 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 907#L352-1 [2018-12-08 13:23:06,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:23:06,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-12-08 13:23:06,235 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:23:06,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:23:06,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:23:06,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:06,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:23:06,270 INFO L82 PathProgramCache]: Analyzing trace with hash -803430243, now seen corresponding path program 1 times [2018-12-08 13:23:06,271 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:23:06,271 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:23:06,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,271 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 13:23:06,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:06,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:23:06,282 INFO L82 PathProgramCache]: Analyzing trace with hash 969711383, now seen corresponding path program 1 times [2018-12-08 13:23:06,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:23:06,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:23:06,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:23:06,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:23:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:23:11,544 WARN L180 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-12-08 13:23:13,986 WARN L180 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 425 [2018-12-08 13:23:14,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 01:23:14 BoogieIcfgContainer [2018-12-08 13:23:14,018 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 13:23:14,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:23:14,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:23:14,018 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:23:14,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:23:05" (3/4) ... [2018-12-08 13:23:14,021 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-08 13:23:14,051 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_68b532dc-6957-4512-a165-dc8d0ef01745/bin-2019/uautomizer/witness.graphml [2018-12-08 13:23:14,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:23:14,052 INFO L168 Benchmark]: Toolchain (without parser) took 9222.98 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 291.5 MB). Free memory was 954.9 MB in the beginning and 892.8 MB in the end (delta: 62.1 MB). Peak memory consumption was 353.6 MB. Max. memory is 11.5 GB. [2018-12-08 13:23:14,053 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:23:14,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-08 13:23:14,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.51 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. [2018-12-08 13:23:14,053 INFO L168 Benchmark]: Boogie Preprocessor took 24.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-08 13:23:14,053 INFO L168 Benchmark]: RCFGBuilder took 411.69 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: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. [2018-12-08 13:23:14,054 INFO L168 Benchmark]: BuchiAutomizer took 8402.79 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.2 MB). Free memory was 1.0 GB in the beginning and 892.8 MB in the end (delta: 152.7 MB). Peak memory consumption was 317.6 MB. Max. memory is 11.5 GB. [2018-12-08 13:23:14,054 INFO L168 Benchmark]: Witness Printer took 33.51 ms. Allocated memory is still 1.3 GB. Free memory is still 892.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:23:14,055 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.51 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. * Boogie Preprocessor took 24.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 411.69 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: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8402.79 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.2 MB). Free memory was 1.0 GB in the beginning and 892.8 MB in the end (delta: 152.7 MB). Peak memory consumption was 317.6 MB. Max. memory is 11.5 GB. * Witness Printer took 33.51 ms. Allocated memory is still 1.3 GB. Free memory is still 892.8 MB. There was no memory consumed. 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 199 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 8.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 108 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 199 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 337 SDtfs, 776 SDslu, 836 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=0, NULL=20, NULL=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51129cf0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@699a23a5=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@265fe521=56, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cc8e799=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ed99568=0, methaneLevelCritical=0, NULL=22, NULL=26, tmp___0=0, NULL=0, NULL=0, NULL=11, retValue_acc=0, NULL=0, NULL=36, NULL=0, tmp___1=0, NULL=12, NULL=0, NULL=15, cleanupTimeShifts=4, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4baeb140=0, NULL=8, NULL=18, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=24, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@509b1ce3=0, NULL=28, retValue_acc=0, NULL=0, NULL=19, \result=0, NULL=0, tmp___0=0, NULL=27, NULL=0, retValue_acc=0, NULL=0, \result=1, NULL=16, head=0, pumpRunning=0, retValue_acc=1, NULL=38, \result=0, NULL=34, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=29, retValue_acc=1, \result=1, NULL=39, NULL=35, NULL=14, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@300eea38=0, tmp___0=0, tmp___2=56, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=23, NULL=31, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b3fcbf3=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@585b9c1a=0, NULL=0, NULL=17, NULL=0, NULL=0, NULL=33, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L335] int methAndRunningLastTime ; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L516] int cleanupTimeShifts = 4; [L791] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L590] int retValue_acc ; [L591] int tmp ; [L403] int retValue_acc ; [L406] retValue_acc = 1 [L407] return (retValue_acc); [L597] tmp = valid_product() [L599] COND TRUE \read(tmp) [L340] methAndRunningLastTime = 0 [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) [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L184] int tmp ; [L187] COND FALSE !(\read(pumpRunning)) [L158] int tmp ; [L161] COND TRUE ! pumpRunning [L281] int retValue_acc ; [L282] int tmp ; [L283] int tmp___0 ; [L493] int retValue_acc ; [L496] COND TRUE waterLevel < 2 [L497] retValue_acc = 1 [L498] return (retValue_acc); [L287] tmp = isHighWaterSensorDry() [L289] COND TRUE \read(tmp) [L290] tmp___0 = 0 [L294] retValue_acc = tmp___0 [L295] return (retValue_acc); [L163] tmp = isHighWaterLevel() [L165] COND FALSE !(\read(tmp)) [L345] int tmp ; [L346] int tmp___0 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L350] tmp = isMethaneLevelCritical() [L352] COND FALSE !(\read(tmp)) [L368] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...