./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product11.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_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/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 42f057e1184787910edaa7abcd242178a9de26a8 ................................................................................................................................................................................................................................................................................................................................................................. 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 17:43:30,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:43:30,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:43:30,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:43:30,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:43:30,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:43:30,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:43:30,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:43:30,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:43:30,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:43:30,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:43:30,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:43:30,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:43:30,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:43:30,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:43:30,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:43:30,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:43:30,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:43:30,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:43:30,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:43:30,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:43:30,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:43:30,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:43:30,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:43:30,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:43:30,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:43:30,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:43:30,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:43:30,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:43:30,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:43:30,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:43:30,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:43:30,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:43:30,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:43:30,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:43:30,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:43:30,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:43:30,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:43:30,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:43:30,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:43:30,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:43:30,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:43:30,254 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:43:30,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:43:30,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:43:30,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:43:30,255 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:43:30,255 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:43:30,256 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:43:30,256 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:43:30,256 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:43:30,256 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:43:30,256 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:43:30,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:43:30,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:43:30,256 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:43:30,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:43:30,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:43:30,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:43:30,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:43:30,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:43:30,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:43:30,257 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:43:30,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:43:30,258 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:43:30,258 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:43:30,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:43:30,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:43:30,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:43:30,258 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:43:30,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:43:30,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:43:30,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:43:30,258 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:43:30,259 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:43:30,259 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_d3c556ed-65b2-4e81-b660-705c3601f0c4/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 -> 42f057e1184787910edaa7abcd242178a9de26a8 [2019-12-07 17:43:30,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:43:30,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:43:30,367 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:43:30,369 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:43:30,369 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:43:30,369 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c [2019-12-07 17:43:30,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/data/3f23379fa/54e37e663f7e478ab7349a25772f824c/FLAG261108303 [2019-12-07 17:43:30,781 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:43:30,781 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/sv-benchmarks/c/product-lines/minepump_spec2_product11.cil.c [2019-12-07 17:43:30,789 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/data/3f23379fa/54e37e663f7e478ab7349a25772f824c/FLAG261108303 [2019-12-07 17:43:30,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/data/3f23379fa/54e37e663f7e478ab7349a25772f824c [2019-12-07 17:43:30,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:43:30,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:43:30,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:43:30,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:43:30,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:43:30,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:43:30" (1/1) ... [2019-12-07 17:43:30,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a6df4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:30, skipping insertion in model container [2019-12-07 17:43:30,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:43:30" (1/1) ... [2019-12-07 17:43:30,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:43:30,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:43:31,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:43:31,044 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:43:31,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:43:31,106 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:43:31,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31 WrapperNode [2019-12-07 17:43:31,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:43:31,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:43:31,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:43:31,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:43:31,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:43:31,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:43:31,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:43:31,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:43:31,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... [2019-12-07 17:43:31,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:43:31,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:43:31,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:43:31,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:43:31,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/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 17:43:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:43:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:43:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:43:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:43:31,560 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:43:31,560 INFO L287 CfgBuilder]: Removed 72 assume(true) statements. [2019-12-07 17:43:31,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:43:31 BoogieIcfgContainer [2019-12-07 17:43:31,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:43:31,561 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:43:31,561 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:43:31,563 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:43:31,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:43:31,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:43:30" (1/3) ... [2019-12-07 17:43:31,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55a183c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:43:31, skipping insertion in model container [2019-12-07 17:43:31,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:43:31,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:43:31" (2/3) ... [2019-12-07 17:43:31,565 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55a183c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:43:31, skipping insertion in model container [2019-12-07 17:43:31,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:43:31,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:43:31" (3/3) ... [2019-12-07 17:43:31,566 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product11.cil.c [2019-12-07 17:43:31,596 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:43:31,596 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:43:31,596 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:43:31,596 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:43:31,596 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:43:31,596 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:43:31,596 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:43:31,596 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:43:31,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states. [2019-12-07 17:43:31,622 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2019-12-07 17:43:31,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:43:31,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:43:31,627 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:43:31,627 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:43:31,628 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:43:31,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states. [2019-12-07 17:43:31,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2019-12-07 17:43:31,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:43:31,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:43:31,631 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:43:31,631 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:43:31,635 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(110, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(102, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(102, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 3 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(80, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(117, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(109, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(112, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(32, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 14#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 7#L73true main_#t~ret70 := valid_product_#res;main_~tmp~6 := main_#t~ret70;havoc main_#t~ret70; 43#L876true assume 0 != main_~tmp~6; 9#L852true ~methAndRunningLastTime~0 := 0; 55#L679true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 57#L690-1true [2019-12-07 17:43:31,635 INFO L796 eck$LassoCheckResult]: Loop: 57#L690-1true assume !false; 37#L608true assume test_~splverifierCounter~0 < 4; 45#L609true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 49#L617true assume !(0 != test_~tmp~4); 51#L617-1true test_~tmp___0~0 := test_#t~nondet55;havoc test_#t~nondet55; 39#L627true assume !(0 != test_~tmp___0~0); 40#L627-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 30#L637true assume 0 != test_~tmp___2~0; 5#L643-1true assume !(0 != ~pumpRunning~0); 22#L461true assume !(0 != ~systemActive~0); 10#L468true havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 48#L756true __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; 52#L690true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 57#L690-1true [2019-12-07 17:43:31,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:43:31,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 17:43:31,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:43:31,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073022814] [2019-12-07 17:43:31,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:43:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:31,862 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:43:31,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:43:31,863 INFO L82 PathProgramCache]: Analyzing trace with hash 10387603, now seen corresponding path program 1 times [2019-12-07 17:43:31,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:43:31,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684545971] [2019-12-07 17:43:31,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:43:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:31,874 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:43:31,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:43:31,875 INFO L82 PathProgramCache]: Analyzing trace with hash 843684109, now seen corresponding path program 1 times [2019-12-07 17:43:31,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:43:31,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524193567] [2019-12-07 17:43:31,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:43:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:43:31,958 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 17:43:31,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524193567] [2019-12-07 17:43:31,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:43:31,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:43:31,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795500049] [2019-12-07 17:43:32,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:43:32,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:43:32,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:43:32,023 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 6 states. [2019-12-07 17:43:32,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:43:32,140 INFO L93 Difference]: Finished difference Result 166 states and 229 transitions. [2019-12-07 17:43:32,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:43:32,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 229 transitions. [2019-12-07 17:43:32,149 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 103 [2019-12-07 17:43:32,155 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 145 states and 208 transitions. [2019-12-07 17:43:32,156 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2019-12-07 17:43:32,157 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2019-12-07 17:43:32,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 208 transitions. [2019-12-07 17:43:32,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:43:32,158 INFO L688 BuchiCegarLoop]: Abstraction has 145 states and 208 transitions. [2019-12-07 17:43:32,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 208 transitions. [2019-12-07 17:43:32,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 97. [2019-12-07 17:43:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-12-07 17:43:32,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2019-12-07 17:43:32,190 INFO L711 BuchiCegarLoop]: Abstraction has 97 states and 139 transitions. [2019-12-07 17:43:32,190 INFO L591 BuchiCegarLoop]: Abstraction has 97 states and 139 transitions. [2019-12-07 17:43:32,190 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:43:32,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 139 transitions. [2019-12-07 17:43:32,192 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 68 [2019-12-07 17:43:32,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:43:32,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:43:32,193 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:43:32,193 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:43:32,193 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(110, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(102, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(102, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 3 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(80, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(117, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(109, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(112, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(32, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 256#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 257#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 254#L73 main_#t~ret70 := valid_product_#res;main_~tmp~6 := main_#t~ret70;havoc main_#t~ret70; 255#L876 assume 0 != main_~tmp~6; 258#L852 ~methAndRunningLastTime~0 := 0; 259#L679 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 252#L690-1 [2019-12-07 17:43:32,193 INFO L796 eck$LassoCheckResult]: Loop: 252#L690-1 assume !false; 291#L608 assume test_~splverifierCounter~0 < 4; 292#L609 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 295#L617 assume !(0 != test_~tmp~4); 273#L617-1 test_~tmp___0~0 := test_#t~nondet55;havoc test_#t~nondet55; 293#L627 assume !(0 != test_~tmp___0~0); 286#L627-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 284#L637 assume 0 != test_~tmp___2~0; 246#L643-1 assume !(0 != ~pumpRunning~0); 248#L461 assume 0 != ~systemActive~0; 260#L468 havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 261#L756 __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; 296#L690 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 252#L690-1 [2019-12-07 17:43:32,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:43:32,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 17:43:32,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:43:32,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636330813] [2019-12-07 17:43:32,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:43:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:32,250 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:43:32,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:43:32,251 INFO L82 PathProgramCache]: Analyzing trace with hash 10298230, now seen corresponding path program 1 times [2019-12-07 17:43:32,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:43:32,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797412165] [2019-12-07 17:43:32,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:43:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:32,258 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:43:32,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:43:32,259 INFO L82 PathProgramCache]: Analyzing trace with hash 843594736, now seen corresponding path program 1 times [2019-12-07 17:43:32,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:43:32,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663795681] [2019-12-07 17:43:32,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:43:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:43:32,309 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:43:54,532 WARN L192 SmtUtils]: Spent 22.17 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 17:44:07,083 WARN L192 SmtUtils]: Spent 12.54 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 17:44:07,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:44:07 BoogieIcfgContainer [2019-12-07 17:44:07,130 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:44:07,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:44:07,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:44:07,131 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:44:07,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:43:31" (3/4) ... [2019-12-07 17:44:07,133 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:44:07,166 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d3c556ed-65b2-4e81-b660-705c3601f0c4/bin/uautomizer/witness.graphml [2019-12-07 17:44:07,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:44:07,167 INFO L168 Benchmark]: Toolchain (without parser) took 36366.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -82.4 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:44:07,168 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:44:07,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:44:07,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.59 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 17:44:07,169 INFO L168 Benchmark]: Boogie Preprocessor took 22.33 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 17:44:07,169 INFO L168 Benchmark]: RCFGBuilder took 393.17 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:44:07,169 INFO L168 Benchmark]: BuchiAutomizer took 35569.36 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 47.7 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 711.4 kB). Peak memory consumption was 247.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:44:07,170 INFO L168 Benchmark]: Witness Printer took 35.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:44:07,171 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 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.59 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 22.33 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 393.17 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35569.36 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 47.7 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 711.4 kB). Peak memory consumption was 247.8 MB. Max. memory is 11.5 GB. * Witness Printer took 35.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 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 6 locations. The remainder module has 97 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 35.2s. 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, 48 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 97 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 78 SDtfs, 290 SDslu, 392 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 607]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7442} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=7442, NULL=0, NULL=0, NULL=0, NULL=7455, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38d02f6=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22b909f4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42f4348c=0, NULL=0, tmp=0, NULL=0, NULL=7445, NULL=7459, NULL=0, tmp___1=0, NULL=7446, NULL=7444, NULL=7466, NULL=7447, NULL=7449, cleanupTimeShifts=4, NULL=7465, NULL=7461, NULL=7452, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=7467, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=7462, tmp___0=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=7454, \result=0, NULL=7450, NULL=0, NULL=0, NULL=0, tmp=1, NULL=7451, NULL=7460, NULL=7456, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dae52dc=0, retValue_acc=1, tmp___2=59, tmp___0=0, NULL=7463, splverifierCounter=0, methAndRunningLastTime=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1135b6b4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7316d618=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b11fc3d=0, head=0, NULL=0, NULL=7457, NULL=0, NULL=7443, NULL=0, NULL=7464, NULL=0, NULL=0, NULL=0, NULL=7453, tmp=0, NULL=7448, NULL=7458} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L453] int pumpRunning = 0; [L454] int systemActive = 1; [L673] int methAndRunningLastTime ; [L713] int waterLevel = 1; [L714] int methaneLevelCritical = 0; [L793] int cleanupTimeShifts = 4; [L867] int retValue_acc ; [L868] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L874] tmp = valid_product() [L876] COND TRUE \read(tmp) [L678] methAndRunningLastTime = 0 [L598] int splverifierCounter ; [L599] int tmp ; [L600] int tmp___0 ; [L601] int tmp___1 ; [L602] int tmp___2 ; [L605] splverifierCounter = 0 Loop: [L607] COND TRUE 1 [L609] COND TRUE splverifierCounter < 4 [L615] tmp = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp)) [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp___0)) [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) [L461] COND FALSE !(\read(pumpRunning)) [L468] COND TRUE \read(systemActive) [L683] int tmp ; [L684] int tmp___0 ; [L752] int retValue_acc ; [L755] retValue_acc = methaneLevelCritical [L756] return (retValue_acc); [L688] tmp = isMethaneLevelCritical() [L690] COND FALSE !(\read(tmp)) [L706] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...