./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/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 e9c38241666ec2c9dc2056ce7724b5bdf9baff18 .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:02:51,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:02:51,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:02:51,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:02:51,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:02:51,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:02:51,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:02:51,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:02:51,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:02:51,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:02:51,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:02:51,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:02:51,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:02:51,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:02:51,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:02:51,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:02:51,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:02:51,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:02:51,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:02:51,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:02:51,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:02:51,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:02:51,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:02:51,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:02:51,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:02:51,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:02:51,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:02:51,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:02:51,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:02:51,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:02:51,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:02:51,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:02:51,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:02:51,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:02:51,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:02:51,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:02:51,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:02:51,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:02:51,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:02:51,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:02:51,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:02:51,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:02:52,000 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:02:52,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:02:52,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:02:52,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:02:52,001 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:02:52,001 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:02:52,002 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:02:52,002 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:02:52,002 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:02:52,002 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:02:52,002 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:02:52,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:02:52,002 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:02:52,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:02:52,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:02:52,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:02:52,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:02:52,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:02:52,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:02:52,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:02:52,004 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:02:52,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:02:52,004 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:02:52,004 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:02:52,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:02:52,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:02:52,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:02:52,005 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:02:52,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:02:52,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:02:52,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:02:52,005 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:02:52,006 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:02:52,006 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_89997223-99ff-4c21-a8eb-b1aefaed2b0c/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 -> e9c38241666ec2c9dc2056ce7724b5bdf9baff18 [2019-12-07 17:02:52,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:02:52,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:02:52,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:02:52,126 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:02:52,126 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:02:52,127 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2019-12-07 17:02:52,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/data/529071174/94b88d62efcf4e358fb69b9efae885ca/FLAG6100259eb [2019-12-07 17:02:52,624 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:02:52,624 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2019-12-07 17:02:52,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/data/529071174/94b88d62efcf4e358fb69b9efae885ca/FLAG6100259eb [2019-12-07 17:02:52,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/data/529071174/94b88d62efcf4e358fb69b9efae885ca [2019-12-07 17:02:52,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:02:52,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:02:52,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:02:52,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:02:52,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:02:52,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4401afc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52, skipping insertion in model container [2019-12-07 17:02:52,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:02:52,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:02:52,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:02:52,889 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:02:52,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:02:52,956 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:02:52,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52 WrapperNode [2019-12-07 17:02:52,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:02:52,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:02:52,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:02:52,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:02:52,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:53,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:02:53,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:02:53,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:02:53,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:02:53,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:53,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:53,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:53,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:53,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:53,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:53,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:53,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:02:53,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:02:53,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:02:53,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:02:53,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:02:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:02:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:02:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:02:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:02:53,429 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:02:53,429 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-12-07 17:02:53,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:02:53 BoogieIcfgContainer [2019-12-07 17:02:53,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:02:53,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:02:53,431 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:02:53,433 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:02:53,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:02:53,433 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:02:52" (1/3) ... [2019-12-07 17:02:53,434 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54e82db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:02:53, skipping insertion in model container [2019-12-07 17:02:53,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:02:53,434 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (2/3) ... [2019-12-07 17:02:53,434 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54e82db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:02:53, skipping insertion in model container [2019-12-07 17:02:53,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:02:53,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:02:53" (3/3) ... [2019-12-07 17:02:53,435 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2019-12-07 17:02:53,463 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:02:53,464 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:02:53,464 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:02:53,464 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:02:53,464 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:02:53,464 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:02:53,464 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:02:53,464 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:02:53,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-12-07 17:02:53,491 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-12-07 17:02:53,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:02:53,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:02:53,497 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:02:53,497 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:02:53,497 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:02:53,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-12-07 17:02:53,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-12-07 17:02:53,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:02:53,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:02:53,502 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:02:53,502 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:02:53,505 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);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(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 62#L94true 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; 5#L102true main_#t~ret3 := valid_product_#res;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 36#L194true assume 0 != main_~tmp~1; 63#L170true havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L51-1true [2019-12-07 17:02:53,505 INFO L796 eck$LassoCheckResult]: Loop: 7#L51-1true assume !false; 47#L385true assume test_~splverifierCounter~0 < 4; 61#L386true test_~tmp~4 := test_#t~nondet23;havoc test_#t~nondet23; 11#L394true assume !(0 != test_~tmp~4); 64#L394-1true test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 49#L404true assume !(0 != test_~tmp___0~2); 51#L404-1true test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 30#L414true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 41#L422-2true assume !(0 != ~pumpRunning~0); 48#L221true assume !(0 != ~systemActive~0); 58#L228true havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 34#L860true __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 9#L51true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 7#L51-1true [2019-12-07 17:02:53,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:02:53,509 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 17:02:53,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:02:53,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991056371] [2019-12-07 17:02:53,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:02:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:53,705 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:02:53,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:02:53,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729469, now seen corresponding path program 1 times [2019-12-07 17:02:53,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:02:53,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000366826] [2019-12-07 17:02:53,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:02:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:02:53,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:02:53,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000366826] [2019-12-07 17:02:53,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:02:53,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:02:53,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584547954] [2019-12-07 17:02:53,743 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:02:53,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:02:53,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:02:53,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:02:53,754 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 3 states. [2019-12-07 17:02:53,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:02:53,783 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2019-12-07 17:02:53,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:02:53,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2019-12-07 17:02:53,787 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-12-07 17:02:53,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2019-12-07 17:02:53,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2019-12-07 17:02:53,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2019-12-07 17:02:53,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2019-12-07 17:02:53,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:02:53,792 INFO L688 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-12-07 17:02:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2019-12-07 17:02:53,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-12-07 17:02:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-12-07 17:02:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2019-12-07 17:02:53,812 INFO L711 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-12-07 17:02:53,812 INFO L591 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-12-07 17:02:53,812 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:02:53,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2019-12-07 17:02:53,813 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-12-07 17:02:53,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:02:53,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:02:53,814 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:02:53,814 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:02:53,814 INFO L794 eck$LassoCheckResult]: Stem: 202#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);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(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 170#L-1 havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 171#L94 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; 158#L102 main_#t~ret3 := valid_product_#res;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 159#L194 assume 0 != main_~tmp~1; 205#L170 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 162#L51-1 [2019-12-07 17:02:53,814 INFO L796 eck$LassoCheckResult]: Loop: 162#L51-1 assume !false; 163#L385 assume test_~splverifierCounter~0 < 4; 210#L386 test_~tmp~4 := test_#t~nondet23;havoc test_#t~nondet23; 167#L394 assume !(0 != test_~tmp~4); 169#L394-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 212#L404 assume !(0 != test_~tmp___0~2); 213#L404-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 198#L414 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 199#L422-2 assume !(0 != ~pumpRunning~0); 192#L221 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 194#L253 assume !(0 != ~pumpRunning~0); 196#L228 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 203#L860 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 164#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 162#L51-1 [2019-12-07 17:02:53,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:02:53,814 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 17:02:53,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:02:53,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004325545] [2019-12-07 17:02:53,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:02:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:53,886 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:02:53,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:02:53,887 INFO L82 PathProgramCache]: Analyzing trace with hash -589998917, now seen corresponding path program 1 times [2019-12-07 17:02:53,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:02:53,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207600242] [2019-12-07 17:02:53,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:02:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:53,896 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:02:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:02:53,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040609, now seen corresponding path program 1 times [2019-12-07 17:02:53,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:02:53,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287234808] [2019-12-07 17:02:53,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:02:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:53,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:03:16,590 WARN L192 SmtUtils]: Spent 22.56 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 17:03:28,487 WARN L192 SmtUtils]: Spent 11.90 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 17:03:28,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:03:28 BoogieIcfgContainer [2019-12-07 17:03:28,542 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:03:28,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:03:28,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:03:28,543 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:03:28,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:02:53" (3/4) ... [2019-12-07 17:03:28,545 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:03:28,581 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_89997223-99ff-4c21-a8eb-b1aefaed2b0c/bin/uautomizer/witness.graphml [2019-12-07 17:03:28,581 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:03:28,582 INFO L168 Benchmark]: Toolchain (without parser) took 35938.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:03:28,582 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:03:28,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -127.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:28,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:03:28,583 INFO L168 Benchmark]: Boogie Preprocessor took 25.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:28,584 INFO L168 Benchmark]: RCFGBuilder took 402.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:28,584 INFO L168 Benchmark]: BuchiAutomizer took 35111.77 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -87.7 MB). Peak memory consumption was 250.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:28,584 INFO L168 Benchmark]: Witness Printer took 38.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:28,586 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 312.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -127.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 402.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35111.77 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -87.7 MB). Peak memory consumption was 250.2 MB. Max. memory is 11.5 GB. * Witness Printer took 38.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 34.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 95 SDtfs, 95 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 384]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5324} State at position 1 is {NULL=14514, NULL=0, NULL=0, NULL=14520, NULL=0, NULL=0, retValue_acc=0, NULL=5324, NULL=14500, NULL=14504, NULL=0, NULL=16930, NULL=14503, NULL=14515, NULL=14517, methaneLevelCritical=0, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, tmp___0=0, cleanupTimeShifts=4, NULL=16929, NULL=14508, NULL=14509, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=14510, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c184b85=0, NULL=14505, retValue_acc=0, NULL=0, NULL=14506, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=14516, NULL=14512, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7062f4fa=0, NULL=14518, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a80c34=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1841626=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@157a0b20=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b6cb38a=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cf10e16=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d86be52=0, NULL=0, tmp=0, NULL=5326, NULL=14511, NULL=0, retValue_acc=1, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=14507, NULL=5325, tmp=0, head=0, NULL=14501, NULL=0, NULL=0, NULL=14519, NULL=14513, NULL=0, NULL=14502} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L107] int cleanupTimeShifts = 4; [L214] int pumpRunning = 0; [L215] int systemActive = 1; [L610] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L817] int waterLevel = 1; [L818] int methaneLevelCritical = 0; [L185] int retValue_acc ; [L186] int tmp ; [L98] int retValue_acc ; [L101] retValue_acc = 1 [L102] return (retValue_acc); [L192] tmp = valid_product() [L194] COND TRUE \read(tmp) [L375] int splverifierCounter ; [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; [L379] int tmp___2 ; [L382] splverifierCounter = 0 Loop: [L384] COND TRUE 1 [L386] COND TRUE splverifierCounter < 4 [L392] tmp = __VERIFIER_nondet_int() [L394] COND FALSE !(\read(tmp)) [L402] tmp___0 = __VERIFIER_nondet_int() [L404] COND FALSE !(\read(tmp___0)) [L412] tmp___2 = __VERIFIER_nondet_int() [L414] COND TRUE \read(tmp___2) [L369] systemActive = 1 [L221] COND FALSE !(\read(pumpRunning)) [L228] COND TRUE \read(systemActive) [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L44] int tmp ; [L45] int tmp___0 ; [L856] int retValue_acc ; [L859] retValue_acc = methaneLevelCritical [L860] return (retValue_acc); [L49] tmp = isMethaneLevelCritical() [L51] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...