./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/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 6346ce5eb6334508a32a1216a3fa5c414f15aa87 .................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:31:30,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:31:30,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:31:30,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:31:30,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:31:30,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:31:30,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:31:30,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:31:30,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:31:30,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:31:30,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:31:30,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:31:30,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:31:30,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:31:30,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:31:30,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:31:30,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:31:30,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:31:30,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:31:30,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:31:30,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:31:30,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:31:30,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:31:30,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:31:30,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:31:30,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:31:30,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:31:30,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:31:30,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:31:30,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:31:30,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:31:30,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:31:30,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:31:30,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:31:30,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:31:30,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:31:30,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:31:30,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:31:30,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:31:30,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:31:30,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:31:30,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 21:31:30,292 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:31:30,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:31:30,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:31:30,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:31:30,294 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:31:30,294 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 21:31:30,294 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 21:31:30,295 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 21:31:30,295 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 21:31:30,295 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 21:31:30,295 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 21:31:30,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:31:30,296 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:31:30,296 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:31:30,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:31:30,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:31:30,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:31:30,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 21:31:30,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 21:31:30,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 21:31:30,298 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:31:30,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:31:30,298 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 21:31:30,299 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:31:30,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 21:31:30,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:31:30,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:31:30,300 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 21:31:30,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:31:30,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:31:30,300 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 21:31:30,301 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 21:31:30,302 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_8b79657e-afbb-4093-b260-9d12ac6e53fe/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 -> 6346ce5eb6334508a32a1216a3fa5c414f15aa87 [2019-11-15 21:31:30,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:31:30,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:31:30,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:31:30,344 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:31:30,345 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:31:30,346 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2019-11-15 21:31:30,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/data/4be1b3270/eb0c914474a641aa9238d13cda6ff856/FLAG424c35586 [2019-11-15 21:31:30,817 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:31:30,818 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2019-11-15 21:31:30,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/data/4be1b3270/eb0c914474a641aa9238d13cda6ff856/FLAG424c35586 [2019-11-15 21:31:31,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/data/4be1b3270/eb0c914474a641aa9238d13cda6ff856 [2019-11-15 21:31:31,152 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:31:31,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:31:31,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:31:31,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:31:31,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:31:31,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cca4f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31, skipping insertion in model container [2019-11-15 21:31:31,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,171 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:31:31,235 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:31:31,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:31:31,646 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:31:31,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:31:31,816 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:31:31,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31 WrapperNode [2019-11-15 21:31:31,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:31:31,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:31:31,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:31:31,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:31:31,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:31:31,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:31:31,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:31:31,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:31:31,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... [2019-11-15 21:31:31,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:31:31,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:31:31,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:31:31,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:31:31,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:31:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:31:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 21:31:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:31:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:31:32,931 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:31:32,931 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-15 21:31:32,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:31:32 BoogieIcfgContainer [2019-11-15 21:31:32,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:31:32,933 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 21:31:32,933 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 21:31:32,936 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 21:31:32,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:31:32,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 09:31:31" (1/3) ... [2019-11-15 21:31:32,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b9bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:31:32, skipping insertion in model container [2019-11-15 21:31:32,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:31:32,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:31:31" (2/3) ... [2019-11-15 21:31:32,940 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b9bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:31:32, skipping insertion in model container [2019-11-15 21:31:32,940 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:31:32,940 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:31:32" (3/3) ... [2019-11-15 21:31:32,942 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2019-11-15 21:31:33,005 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 21:31:33,006 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 21:31:33,006 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 21:31:33,006 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:31:33,007 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:31:33,007 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 21:31:33,007 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:31:33,007 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 21:31:33,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-15 21:31:33,070 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-15 21:31:33,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:31:33,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:31:33,080 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:31:33,080 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:31:33,080 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 21:31:33,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-15 21:31:33,096 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-15 21:31:33,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:31:33,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:31:33,099 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:31:33,099 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:31:33,113 INFO L791 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4; 4#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 73#L916true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 103#L924true main_#t~ret69 := valid_product_#res;main_~tmp~7 := main_#t~ret69;havoc main_#t~ret69; 12#L846true assume 0 != main_~tmp~7; 54#L820true havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 70#L875-1true [2019-11-15 21:31:33,114 INFO L793 eck$LassoCheckResult]: Loop: 70#L875-1true assume !false; 35#L617true assume test_~splverifierCounter~0 < 4; 7#L618true test_~tmp~6 := test_#t~nondet55;havoc test_#t~nondet55; 9#L626true assume !(0 != test_~tmp~6); 10#L626-1true test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 42#L636true assume !(0 != test_~tmp___0~1); 43#L636-1true test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 106#L646true assume 0 != test_~tmp___2~0; 71#L652-2true assume !(0 != ~pumpRunning~0); 102#L423true assume !(0 != ~systemActive~0); 29#L430true havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 95#L715-1true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 109#L869true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 70#L875-1true [2019-11-15 21:31:33,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:33,120 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-15 21:31:33,130 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:33,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403154131] [2019-11-15 21:31:33,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:33,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:33,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:34,163 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:31:34,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:34,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298507, now seen corresponding path program 1 times [2019-11-15 21:31:34,166 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:34,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286142786] [2019-11-15 21:31:34,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:34,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:34,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:34,199 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:31:34,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:34,203 INFO L82 PathProgramCache]: Analyzing trace with hash 33980431, now seen corresponding path program 1 times [2019-11-15 21:31:34,204 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:34,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794224338] [2019-11-15 21:31:34,204 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:34,205 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:34,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:31:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:31:34,326 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794224338] [2019-11-15 21:31:34,327 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:31:34,327 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:31:34,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741375281] [2019-11-15 21:31:34,450 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:31:34,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:31:34,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:31:34,470 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 6 states. [2019-11-15 21:31:34,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:31:34,636 INFO L93 Difference]: Finished difference Result 108 states and 151 transitions. [2019-11-15 21:31:34,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:31:34,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 151 transitions. [2019-11-15 21:31:34,642 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-15 21:31:34,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 144 transitions. [2019-11-15 21:31:34,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2019-11-15 21:31:34,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2019-11-15 21:31:34,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 144 transitions. [2019-11-15 21:31:34,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:31:34,652 INFO L688 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-15 21:31:34,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 144 transitions. [2019-11-15 21:31:34,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-15 21:31:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-15 21:31:34,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2019-11-15 21:31:34,690 INFO L711 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-15 21:31:34,691 INFO L591 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-15 21:31:34,691 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 21:31:34,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 144 transitions. [2019-11-15 21:31:34,692 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-15 21:31:34,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:31:34,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:31:34,694 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:31:34,694 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:31:34,694 INFO L791 eck$LassoCheckResult]: Stem: 310#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4; 234#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 235#L916 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 320#L924 main_#t~ret69 := valid_product_#res;main_~tmp~7 := main_#t~ret69;havoc main_#t~ret69; 250#L846 assume 0 != main_~tmp~7; 251#L820 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 279#L875-1 [2019-11-15 21:31:34,695 INFO L793 eck$LassoCheckResult]: Loop: 279#L875-1 assume !false; 285#L617 assume test_~splverifierCounter~0 < 4; 240#L618 test_~tmp~6 := test_#t~nondet55;havoc test_#t~nondet55; 241#L626 assume !(0 != test_~tmp~6); 245#L626-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 246#L636 assume !(0 != test_~tmp___0~1); 291#L636-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 294#L646 assume 0 != test_~tmp___2~0; 317#L652-2 assume !(0 != ~pumpRunning~0); 273#L423 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret36, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 331#L481 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 274#L455-1 assume !(0 != ~pumpRunning~0); 271#L430 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 281#L715-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 334#L869 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 279#L875-1 [2019-11-15 21:31:34,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:34,695 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-15 21:31:34,695 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:34,696 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836999829] [2019-11-15 21:31:34,696 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:34,696 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:34,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:35,065 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:31:35,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:35,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522617, now seen corresponding path program 1 times [2019-11-15 21:31:35,066 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:35,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279417776] [2019-11-15 21:31:35,067 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,067 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:35,087 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:31:35,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:35,088 INFO L82 PathProgramCache]: Analyzing trace with hash 441062433, now seen corresponding path program 1 times [2019-11-15 21:31:35,089 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:35,089 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223670152] [2019-11-15 21:31:35,089 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,090 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:31:35,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:31:35,157 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223670152] [2019-11-15 21:31:35,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:31:35,157 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 21:31:35,157 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516242439] [2019-11-15 21:31:35,238 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:31:35,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:31:35,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:31:35,238 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-11-15 21:31:35,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:31:35,486 INFO L93 Difference]: Finished difference Result 355 states and 516 transitions. [2019-11-15 21:31:35,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:31:35,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 516 transitions. [2019-11-15 21:31:35,519 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 241 [2019-11-15 21:31:35,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 355 states and 516 transitions. [2019-11-15 21:31:35,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2019-11-15 21:31:35,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2019-11-15 21:31:35,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 355 states and 516 transitions. [2019-11-15 21:31:35,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:31:35,539 INFO L688 BuchiCegarLoop]: Abstraction has 355 states and 516 transitions. [2019-11-15 21:31:35,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states and 516 transitions. [2019-11-15 21:31:35,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 196. [2019-11-15 21:31:35,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-11-15 21:31:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2019-11-15 21:31:35,563 INFO L711 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2019-11-15 21:31:35,563 INFO L591 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2019-11-15 21:31:35,563 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 21:31:35,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 278 transitions. [2019-11-15 21:31:35,566 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2019-11-15 21:31:35,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:31:35,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:31:35,569 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:31:35,569 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:31:35,570 INFO L791 eck$LassoCheckResult]: Stem: 794#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4; 708#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 709#L916 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 809#L924 main_#t~ret69 := valid_product_#res;main_~tmp~7 := main_#t~ret69;havoc main_#t~ret69; 724#L846 assume 0 != main_~tmp~7; 725#L820 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 789#L875-1 [2019-11-15 21:31:35,571 INFO L793 eck$LassoCheckResult]: Loop: 789#L875-1 assume !false; 854#L617 assume test_~splverifierCounter~0 < 4; 855#L618 test_~tmp~6 := test_#t~nondet55;havoc test_#t~nondet55; 903#L626 assume !(0 != test_~tmp~6); 901#L626-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 771#L636 assume !(0 != test_~tmp___0~1); 772#L636-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 773#L646 assume 0 != test_~tmp___2~0; 804#L652-2 assume !(0 != ~pumpRunning~0); 747#L423 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret36, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 823#L481 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 748#L455-1 assume !(0 != ~pumpRunning~0); 745#L430 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 830#L715-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 831#L869 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 737#L747 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 738#L875 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 789#L875-1 [2019-11-15 21:31:35,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:35,572 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-15 21:31:35,573 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:35,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390690363] [2019-11-15 21:31:35,573 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,573 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:35,905 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:31:35,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:35,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1749911687, now seen corresponding path program 1 times [2019-11-15 21:31:35,907 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:35,907 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638501467] [2019-11-15 21:31:35,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:35,919 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:31:35,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:31:35,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1340756845, now seen corresponding path program 1 times [2019-11-15 21:31:35,920 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:31:35,921 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919437525] [2019-11-15 21:31:35,921 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,921 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:31:35,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:31:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:31:36,220 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:32:00,539 WARN L191 SmtUtils]: Spent 24.20 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-15 21:32:11,463 WARN L191 SmtUtils]: Spent 10.92 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-15 21:32:11,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 09:32:11 BoogieIcfgContainer [2019-11-15 21:32:11,530 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 21:32:11,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:32:11,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:32:11,533 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:32:11,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:31:32" (3/4) ... [2019-11-15 21:32:11,535 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 21:32:11,586 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b79657e-afbb-4093-b260-9d12ac6e53fe/bin/uautomizer/witness.graphml [2019-11-15 21:32:11,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:32:11,588 INFO L168 Benchmark]: Toolchain (without parser) took 40434.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.1 MB). Free memory was 944.7 MB in the beginning and 826.2 MB in the end (delta: 118.6 MB). Peak memory consumption was 433.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:11,588 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:32:11,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:11,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:11,590 INFO L168 Benchmark]: Boogie Preprocessor took 78.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:32:11,590 INFO L168 Benchmark]: RCFGBuilder took 966.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:11,591 INFO L168 Benchmark]: BuchiAutomizer took 38597.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.0 GB in the beginning and 829.4 MB in the end (delta: 207.4 MB). Peak memory consumption was 407.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:11,592 INFO L168 Benchmark]: Witness Printer took 56.22 ms. Allocated memory is still 1.3 GB. Free memory was 829.4 MB in the beginning and 826.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:11,594 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 663.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 966.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38597.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.0 GB in the beginning and 829.4 MB in the end (delta: 207.4 MB). Peak memory consumption was 407.7 MB. Max. memory is 11.5 GB. * Witness Printer took 56.22 ms. Allocated memory is still 1.3 GB. Free memory was 829.4 MB in the beginning and 826.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 196 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 159 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 196 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 346 SDtfs, 982 SDslu, 606 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 616]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=-19, methaneLevelCritical=0, retValue_acc=1, NULL=-11, NULL=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c94d0b3=0, tmp=0, NULL=-7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e7b9168=0, tmp___1=0, NULL=-4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35f03be7=0, NULL=-5, NULL=-9, NULL=-21, NULL=-12, cleanupTimeShifts=4, NULL=-14, NULL=-16, NULL=-22, tmp=0, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@afd710b=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=-15, NULL=-17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bbdba8=0, NULL=0, \result=1, NULL=-25, head=0, pumpRunning=0, NULL=-10, \result=0, NULL=-1, NULL=0, NULL=-20, tmp=1, NULL=0, NULL=0, NULL=-8, retValue_acc=1, tmp___2=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53d1d61c=0, NULL=-6, tmp___0=0, splverifierCounter=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ec3730a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e761bdd=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@731231b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f82fe36=0, tmp___1=0, head=0, tmp=0, NULL=0, NULL=-2, NULL=-23, NULL=0, NULL=-24, NULL=0, NULL=0, NULL=0, NULL=-3, NULL=-18, NULL=-13} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int pumpRunning = 0; [L416] int systemActive = 1; [L672] int waterLevel = 1; [L673] int methaneLevelCritical = 0; [L761] int cleanupTimeShifts = 4; [L837] int retValue_acc ; [L838] int tmp ; [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L844] tmp = valid_product() [L846] COND TRUE \read(tmp) [L607] int splverifierCounter ; [L608] int tmp ; [L609] int tmp___0 ; [L610] int tmp___1 ; [L611] int tmp___2 ; [L614] splverifierCounter = 0 Loop: [L616] COND TRUE 1 [L618] COND TRUE splverifierCounter < 4 [L624] tmp = __VERIFIER_nondet_int() [L626] COND FALSE !(\read(tmp)) [L634] tmp___0 = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp___0)) [L644] tmp___2 = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp___2) [L423] COND FALSE !(\read(pumpRunning)) [L430] COND TRUE \read(systemActive) [L478] int tmp ; [L481] COND FALSE !(\read(pumpRunning)) [L452] int tmp ; [L455] COND FALSE !(\read(pumpRunning)) [L861] int tmp ; [L862] int tmp___0 ; [L863] int tmp___1 ; [L711] int retValue_acc ; [L714] retValue_acc = methaneLevelCritical [L715] return (retValue_acc); [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L743] int retValue_acc ; [L746] retValue_acc = waterLevel [L747] return (retValue_acc); [L873] tmp___0 = getWaterLevel() [L875] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...