./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product62.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/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/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 ce17648ffa5822f201dca35a60378555aafbd885 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2019-10-22 09:00:00,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:00,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:00,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:00,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:00,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:00,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:00,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:00,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:00,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:00,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:00,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:00,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:00,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:00,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:00,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:00,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:00,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:00,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:00,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:00,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:00,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:00,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:00,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:00,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:00,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:00,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:00,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:00,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:00,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:00,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:00,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:00,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:00,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:00,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:00,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:00,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:00,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:00,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:00,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:00,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:00,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:00:00,243 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:00,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:00,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:00,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:00,245 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:00,246 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:00:00,246 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:00:00,246 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:00:00,246 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:00:00,246 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:00:00,246 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:00:00,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:00,247 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:00,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:00,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:00,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:00,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:00,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:00:00,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:00:00,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:00:00,248 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:00,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:00,249 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:00:00,249 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:00,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:00:00,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:00,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:00,249 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:00:00,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:00,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:00,250 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:00:00,251 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:00:00,251 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/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/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 -> ce17648ffa5822f201dca35a60378555aafbd885 [2019-10-22 09:00:00,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:00,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:00,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:00,296 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:00,296 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:00,297 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c [2019-10-22 09:00:00,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/data/63e0cca48/13ddee3fb3604d4d8f27043ff46422af/FLAGf22bb896e [2019-10-22 09:00:00,751 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:00,751 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c [2019-10-22 09:00:00,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/data/63e0cca48/13ddee3fb3604d4d8f27043ff46422af/FLAGf22bb896e [2019-10-22 09:00:00,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/data/63e0cca48/13ddee3fb3604d4d8f27043ff46422af [2019-10-22 09:00:00,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:00,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:00,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:00,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:00,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:00,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:00" (1/1) ... [2019-10-22 09:00:00,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de3efe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:00, skipping insertion in model container [2019-10-22 09:00:00,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:00" (1/1) ... [2019-10-22 09:00:00,795 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:00,830 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:01,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:01,183 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:01,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:01,277 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:01,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01 WrapperNode [2019-10-22 09:00:01,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:01,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:01,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:01,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:01,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:01,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:01,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:01,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:01,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... [2019-10-22 09:00:01,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:01,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:01,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:01,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:01,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/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 [2019-10-22 09:00:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:00:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:01,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:02,403 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:02,404 INFO L284 CfgBuilder]: Removed 350 assume(true) statements. [2019-10-22 09:00:02,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:02 BoogieIcfgContainer [2019-10-22 09:00:02,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:02,405 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:00:02,405 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:00:02,408 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:00:02,409 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:02,409 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:00:00" (1/3) ... [2019-10-22 09:00:02,410 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5afb2fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:02, skipping insertion in model container [2019-10-22 09:00:02,410 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:02,411 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:01" (2/3) ... [2019-10-22 09:00:02,411 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5afb2fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:02, skipping insertion in model container [2019-10-22 09:00:02,411 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:02,411 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:02" (3/3) ... [2019-10-22 09:00:02,413 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2019-10-22 09:00:02,449 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:00:02,449 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:00:02,449 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:00:02,450 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:02,450 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:02,450 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:00:02,450 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:02,450 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:00:02,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states. [2019-10-22 09:00:02,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2019-10-22 09:00:02,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:02,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:02,507 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:02,507 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:02,507 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:00:02,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states. [2019-10-22 09:00:02,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2019-10-22 09:00:02,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:02,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:02,515 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:02,516 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:02,520 INFO L791 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1); 3#L-1true havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 111#L431true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 5#L439true main_#t~ret30 := valid_product_#res;main_~tmp~8 := main_#t~ret30;havoc main_#t~ret30; 137#L526true assume 0 != main_~tmp~8; 211#L503true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 152#L388-1true [2019-10-22 09:00:02,521 INFO L793 eck$LassoCheckResult]: Loop: 152#L388-1true assume !false; 4#L65true assume test_~splverifierCounter~0 < 4; 83#L66true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 188#L74true assume !(0 != test_~tmp~0); 164#L74-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 110#L84true assume !(0 != test_~tmp___0~0); 109#L84-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 125#L94true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 147#L102-2true assume !(0 != ~pumpRunning~0); 57#L138true assume !(0 != ~systemActive~0); 210#L145true havoc __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_#t~ret28, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 118#L981true __utac_acc__Specification4_spec__1_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret27;havoc __utac_acc__Specification4_spec__1_#t~ret27; 148#L388true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 152#L388-1true [2019-10-22 09:00:02,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:02,526 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 09:00:02,533 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:02,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329052524] [2019-10-22 09:00:02,534 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:02,534 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:02,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:03,215 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:03,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:03,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1674172477, now seen corresponding path program 1 times [2019-10-22 09:00:03,217 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:03,217 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567002900] [2019-10-22 09:00:03,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:03,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:03,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:03,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:03,272 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567002900] [2019-10-22 09:00:03,272 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:03,273 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:03,273 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162877295] [2019-10-22 09:00:03,279 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:00:03,280 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:03,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:03,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:03,296 INFO L87 Difference]: Start difference. First operand 222 states. Second operand 3 states. [2019-10-22 09:00:03,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:03,357 INFO L93 Difference]: Finished difference Result 222 states and 323 transitions. [2019-10-22 09:00:03,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:03,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 323 transitions. [2019-10-22 09:00:03,370 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2019-10-22 09:00:03,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 215 states and 315 transitions. [2019-10-22 09:00:03,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2019-10-22 09:00:03,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2019-10-22 09:00:03,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 315 transitions. [2019-10-22 09:00:03,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:00:03,385 INFO L688 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-10-22 09:00:03,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 315 transitions. [2019-10-22 09:00:03,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-10-22 09:00:03,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-10-22 09:00:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2019-10-22 09:00:03,426 INFO L711 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-10-22 09:00:03,426 INFO L591 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-10-22 09:00:03,427 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:00:03,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 315 transitions. [2019-10-22 09:00:03,429 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2019-10-22 09:00:03,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:03,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:03,437 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:03,437 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:03,437 INFO L791 eck$LassoCheckResult]: Stem: 574#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1); 453#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 454#L431 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 458#L439 main_#t~ret30 := valid_product_#res;main_~tmp~8 := main_#t~ret30;havoc main_#t~ret30; 459#L526 assume 0 != main_~tmp~8; 624#L503 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 606#L388-1 [2019-10-22 09:00:03,438 INFO L793 eck$LassoCheckResult]: Loop: 606#L388-1 assume !false; 455#L65 assume test_~splverifierCounter~0 < 4; 456#L66 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 579#L74 assume !(0 != test_~tmp~0); 597#L74-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 600#L84 assume !(0 != test_~tmp___0~0); 557#L84-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 599#L94 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 617#L102-2 assume !(0 != ~pumpRunning~0); 499#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 553#L222 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 536#L196-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 537#L170-3 assume !(0 == ~pumpRunning~0); 521#L145 havoc __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_#t~ret28, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 608#L981 __utac_acc__Specification4_spec__1_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret27;havoc __utac_acc__Specification4_spec__1_#t~ret27; 609#L388 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 606#L388-1 [2019-10-22 09:00:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:03,438 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 09:00:03,438 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:03,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843250223] [2019-10-22 09:00:03,439 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:03,439 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:03,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:03,805 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:03,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:03,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1243674303, now seen corresponding path program 1 times [2019-10-22 09:00:03,806 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:03,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496196185] [2019-10-22 09:00:03,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:03,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:03,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:03,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496196185] [2019-10-22 09:00:03,820 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:03,821 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:03,821 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508223910] [2019-10-22 09:00:03,821 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:00:03,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:03,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:03,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:03,822 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. cyclomatic complexity: 102 Second operand 3 states. [2019-10-22 09:00:03,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:03,949 INFO L93 Difference]: Finished difference Result 211 states and 291 transitions. [2019-10-22 09:00:03,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:03,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 291 transitions. [2019-10-22 09:00:03,955 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2019-10-22 09:00:03,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 291 transitions. [2019-10-22 09:00:03,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2019-10-22 09:00:03,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2019-10-22 09:00:03,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 291 transitions. [2019-10-22 09:00:03,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:00:03,958 INFO L688 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-10-22 09:00:03,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 291 transitions. [2019-10-22 09:00:03,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2019-10-22 09:00:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-10-22 09:00:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2019-10-22 09:00:03,967 INFO L711 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-10-22 09:00:03,967 INFO L591 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-10-22 09:00:03,967 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:00:03,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 291 transitions. [2019-10-22 09:00:03,968 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2019-10-22 09:00:03,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:03,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:03,969 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:03,969 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:03,969 INFO L791 eck$LassoCheckResult]: Stem: 1030#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1); 889#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 890#L431 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 894#L439 main_#t~ret30 := valid_product_#res;main_~tmp~8 := main_#t~ret30;havoc main_#t~ret30; 897#L526 assume 0 != main_~tmp~8; 994#L503 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 905#L388-1 [2019-10-22 09:00:03,970 INFO L793 eck$LassoCheckResult]: Loop: 905#L388-1 assume !false; 891#L65 assume test_~splverifierCounter~0 < 4; 892#L66 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1095#L74 assume !(0 != test_~tmp~0); 1093#L74-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1092#L84 assume !(0 != test_~tmp___0~0); 1090#L84-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 956#L94 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 957#L102-2 assume !(0 != ~pumpRunning~0); 1000#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1001#L222 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 985#L196-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 986#L170-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 947#L989-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 948#L994-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 999#L341-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1019#L341-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 995#L347-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 971#L174-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 972#L145 havoc __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_#t~ret28, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 926#L981 __utac_acc__Specification4_spec__1_#t~ret27 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret27;havoc __utac_acc__Specification4_spec__1_#t~ret27; 927#L388 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 905#L388-1 [2019-10-22 09:00:03,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:03,970 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 09:00:03,971 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:03,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364859428] [2019-10-22 09:00:03,971 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:03,971 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:03,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:04,179 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:04,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1113090803, now seen corresponding path program 1 times [2019-10-22 09:00:04,180 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:04,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957788066] [2019-10-22 09:00:04,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:04,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:04,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:04,192 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:04,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:04,192 INFO L82 PathProgramCache]: Analyzing trace with hash 140214323, now seen corresponding path program 1 times [2019-10-22 09:00:04,196 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:04,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288450] [2019-10-22 09:00:04,196 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:04,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:04,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:04,476 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:23,656 WARN L191 SmtUtils]: Spent 19.03 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 09:00:33,499 WARN L191 SmtUtils]: Spent 9.84 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 09:00:33,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:00:33 BoogieIcfgContainer [2019-10-22 09:00:33,560 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:00:33,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:33,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:33,560 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:33,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:02" (3/4) ... [2019-10-22 09:00:33,564 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:00:33,615 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a2d6ce89-0d55-4e53-b5f2-a6f21ac90fe6/bin/uautomizer/witness.graphml [2019-10-22 09:00:33,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:33,617 INFO L168 Benchmark]: Toolchain (without parser) took 32835.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -118.3 MB). Peak memory consumption was 91.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,617 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:33,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.91 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,618 INFO L168 Benchmark]: Boogie Preprocessor took 87.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,619 INFO L168 Benchmark]: RCFGBuilder took 945.64 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: 86.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,619 INFO L168 Benchmark]: BuchiAutomizer took 31154.22 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -34.5 MB). Peak memory consumption was 257.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,620 INFO L168 Benchmark]: Witness Printer took 55.54 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: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:33,622 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 495.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.91 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 945.64 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: 86.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 31154.22 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -34.5 MB). Peak memory consumption was 257.2 MB. Max. memory is 11.5 GB. * Witness Printer took 55.54 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: 2.8 MB). Peak memory consumption was 2.8 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 3 locations. The remainder module has 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 30.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 542 SDtfs, 489 SDslu, 75 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1809} State at position 1 is {retValue_acc=1, NULL=0, NULL=0, NULL=-19, NULL=0, NULL=1809, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4105ca84=0, NULL=-6, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a6e0586=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a03b78c=54, NULL=0, NULL=-11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@91018f9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34c1f5a9=0, methaneLevelCritical=0, tmp___0=0, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@417ef014=0, tmp___1=0, NULL=-17, cleanupTimeShifts=4, tmp=0, tmp=0, NULL=-1, NULL=-15, NULL=1808, tmp___0=0, NULL=0, systemActive=1, waterLevel=1, NULL=-13, \result=1, NULL=0, NULL=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d1059ce=0, NULL=0, NULL=0, NULL=-22, \result=0, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=-9, NULL=0, NULL=0, \result=1, NULL=-23, head=0, pumpRunning=0, NULL=-21, \result=0, NULL=-4, NULL=0, tmp=1, NULL=0, NULL=0, retValue_acc=1, \result=1, NULL=-12, NULL=-10, NULL=-18, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61730a68=0, NULL=-14, NULL=0, tmp=1, retValue_acc=1, tmp___2=54, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35577ce=0, splverifierCounter=0, NULL=0, NULL=-16, NULL=-7, tmp=0, head=0, NULL=-20, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@150ca061=0, NULL=-24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e5e8cf0=0, NULL=0, NULL=-8, NULL=-2, NULL=-3, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L444] int cleanupTimeShifts = 4; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int waterLevel = 1; [L907] int methaneLevelCritical = 0; [L517] int retValue_acc ; [L518] int tmp ; [L435] int retValue_acc ; [L438] retValue_acc = 1 [L439] return (retValue_acc); [L524] tmp = valid_product() [L526] COND TRUE \read(tmp) [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L374] systemActive = 1 [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L219] int tmp ; [L222] COND FALSE !(\read(pumpRunning)) [L193] int tmp ; [L196] COND FALSE !(\read(pumpRunning)) [L167] int tmp ; [L170] COND TRUE ! pumpRunning [L333] int retValue_acc ; [L334] int tmp ; [L335] int tmp___0 ; [L986] int retValue_acc ; [L989] COND TRUE waterLevel < 2 [L990] retValue_acc = 1 [L991] return (retValue_acc); [L339] tmp = isHighWaterSensorDry() [L341] COND TRUE \read(tmp) [L342] tmp___0 = 0 [L346] retValue_acc = tmp___0 [L347] return (retValue_acc); [L172] tmp = isHighWaterLevel() [L174] COND FALSE !(\read(tmp)) [L381] int tmp ; [L382] int tmp___0 ; [L977] int retValue_acc ; [L980] retValue_acc = waterLevel [L981] return (retValue_acc); [L386] tmp = getWaterLevel() [L388] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...