./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product53.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_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/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 74af0999cbe879befd0a6903faa6dabc12f5915f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 09:01:43,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:43,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:43,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:43,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:43,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:43,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:43,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:43,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:43,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:43,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:43,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:43,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:43,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:43,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:43,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:43,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:43,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:43,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:43,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:43,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:43,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:43,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:43,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:43,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:43,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:43,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:43,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:43,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:43,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:43,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:43,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:43,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:43,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:43,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:43,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:43,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:43,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:43,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:43,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:43,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:43,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:01:43,655 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:43,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:43,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:43,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:43,656 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:43,657 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:43,657 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:43,657 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:43,657 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:43,657 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:43,657 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:43,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:43,658 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:43,658 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:43,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:43,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:43,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:43,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:43,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:43,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:43,659 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:43,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:43,660 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:43,661 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:43,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:43,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:43,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:43,662 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:43,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:43,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:43,662 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:43,663 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:43,663 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_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/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 -> 74af0999cbe879befd0a6903faa6dabc12f5915f [2019-10-22 09:01:43,694 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:43,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:43,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:43,714 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:43,714 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:43,715 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2019-10-22 09:01:43,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/data/f8bc1370b/9d86265f76e943ea83c690264b42eb52/FLAG6065161fd [2019-10-22 09:01:44,208 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:44,208 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2019-10-22 09:01:44,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/data/f8bc1370b/9d86265f76e943ea83c690264b42eb52/FLAG6065161fd [2019-10-22 09:01:44,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/data/f8bc1370b/9d86265f76e943ea83c690264b42eb52 [2019-10-22 09:01:44,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:44,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:44,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:44,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:44,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:44,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:44" (1/1) ... [2019-10-22 09:01:44,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be40f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:44, skipping insertion in model container [2019-10-22 09:01:44,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:44" (1/1) ... [2019-10-22 09:01:44,587 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:44,635 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:45,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:45,013 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:45,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:45,134 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:45,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45 WrapperNode [2019-10-22 09:01:45,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:45,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:45,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:45,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:45,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:45,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:45,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:45,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:45,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... [2019-10-22 09:01:45,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:45,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:45,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:45,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:45,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/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 09:01:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:01:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:45,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:46,336 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:46,337 INFO L284 CfgBuilder]: Removed 278 assume(true) statements. [2019-10-22 09:01:46,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:46 BoogieIcfgContainer [2019-10-22 09:01:46,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:46,339 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:46,339 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:46,342 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:46,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:46,344 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:44" (1/3) ... [2019-10-22 09:01:46,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b8855c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:46, skipping insertion in model container [2019-10-22 09:01:46,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:46,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:45" (2/3) ... [2019-10-22 09:01:46,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b8855c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:46, skipping insertion in model container [2019-10-22 09:01:46,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:46,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:46" (3/3) ... [2019-10-22 09:01:46,348 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2019-10-22 09:01:46,401 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:46,402 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:46,402 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:46,402 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:46,402 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:46,402 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:46,403 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:46,403 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:46,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 190 states. [2019-10-22 09:01:46,453 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-10-22 09:01:46,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:46,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:46,461 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:46,461 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:46,461 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:46,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 190 states. [2019-10-22 09:01:46,469 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-10-22 09:01:46,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:46,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:46,471 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:46,472 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:46,476 INFO L791 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 18#L-1true havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 164#L982true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 172#L990true main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 140#L842true assume 0 != main_~tmp~10; 99#L815true ~methAndRunningLastTime~0 := 0; 174#L723true 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; 178#L734-1true [2019-10-22 09:01:46,477 INFO L793 eck$LassoCheckResult]: Loop: 178#L734-1true assume !false; 74#L64true assume test_~splverifierCounter~0 < 4; 27#L65true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 16#L73true assume !(0 != test_~tmp~0); 14#L73-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 70#L83true assume !(0 != test_~tmp___0~0); 69#L83-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 136#L93true assume 0 != test_~tmp___2~0; 123#L99-2true assume !(0 != ~pumpRunning~0); 116#L501true assume !(0 != ~systemActive~0); 33#L508true havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 104#L900-1true __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; 173#L734true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 178#L734-1true [2019-10-22 09:01:46,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:46,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-10-22 09:01:46,493 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:46,493 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183081868] [2019-10-22 09:01:46,493 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:46,493 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:46,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:47,227 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:47,228 INFO L82 PathProgramCache]: Analyzing trace with hash 7801738, now seen corresponding path program 1 times [2019-10-22 09:01:47,229 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:47,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428807141] [2019-10-22 09:01:47,229 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:47,229 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:47,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:47,241 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:47,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:47,243 INFO L82 PathProgramCache]: Analyzing trace with hash 841098244, now seen corresponding path program 1 times [2019-10-22 09:01:47,243 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:47,243 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738690578] [2019-10-22 09:01:47,243 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:47,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:47,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:47,361 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 09:01:47,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738690578] [2019-10-22 09:01:47,362 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:47,362 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:01:47,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157422608] [2019-10-22 09:01:47,463 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:47,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:47,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:47,480 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 6 states. [2019-10-22 09:01:47,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:47,668 INFO L93 Difference]: Finished difference Result 190 states and 281 transitions. [2019-10-22 09:01:47,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:01:47,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 281 transitions. [2019-10-22 09:01:47,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2019-10-22 09:01:47,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 183 states and 274 transitions. [2019-10-22 09:01:47,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2019-10-22 09:01:47,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2019-10-22 09:01:47,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 274 transitions. [2019-10-22 09:01:47,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:47,684 INFO L688 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2019-10-22 09:01:47,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 274 transitions. [2019-10-22 09:01:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-10-22 09:01:47,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-10-22 09:01:47,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 274 transitions. [2019-10-22 09:01:47,718 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2019-10-22 09:01:47,718 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2019-10-22 09:01:47,718 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:01:47,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 274 transitions. [2019-10-22 09:01:47,723 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2019-10-22 09:01:47,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:47,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:47,727 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:47,727 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 09:01:47,728 INFO L791 eck$LassoCheckResult]: Stem: 552#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 428#L-1 havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 429#L982 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 578#L990 main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 562#L842 assume 0 != main_~tmp~10; 542#L815 ~methAndRunningLastTime~0 := 0; 543#L723 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; 478#L734-1 [2019-10-22 09:01:47,728 INFO L793 eck$LassoCheckResult]: Loop: 478#L734-1 assume !false; 513#L64 assume test_~splverifierCounter~0 < 4; 449#L65 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 426#L73 assume !(0 != test_~tmp~0); 420#L73-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 421#L83 assume !(0 != test_~tmp___0~0); 508#L83-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 509#L93 assume 0 != test_~tmp___2~0; 554#L99-2 assume !(0 != ~pumpRunning~0); 495#L501 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 434#L585 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 436#L559-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 520#L533-3 assume !(0 == ~pumpRunning~0); 423#L508 havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 457#L900-1 __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; 545#L734 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 478#L734-1 [2019-10-22 09:01:47,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-10-22 09:01:47,729 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:47,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611582932] [2019-10-22 09:01:47,729 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:47,729 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:47,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:48,039 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:48,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:48,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1898042756, now seen corresponding path program 1 times [2019-10-22 09:01:48,041 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:48,041 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599906699] [2019-10-22 09:01:48,041 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,042 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:48,055 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 09:01:48,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599906699] [2019-10-22 09:01:48,056 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:48,056 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:48,056 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227832461] [2019-10-22 09:01:48,057 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:01:48,057 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:48,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:48,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:48,057 INFO L87 Difference]: Start difference. First operand 183 states and 274 transitions. cyclomatic complexity: 93 Second operand 3 states. [2019-10-22 09:01:48,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:48,201 INFO L93 Difference]: Finished difference Result 191 states and 268 transitions. [2019-10-22 09:01:48,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:48,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 268 transitions. [2019-10-22 09:01:48,204 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2019-10-22 09:01:48,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 191 states and 268 transitions. [2019-10-22 09:01:48,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 191 [2019-10-22 09:01:48,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 191 [2019-10-22 09:01:48,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 191 states and 268 transitions. [2019-10-22 09:01:48,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:48,207 INFO L688 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2019-10-22 09:01:48,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states and 268 transitions. [2019-10-22 09:01:48,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2019-10-22 09:01:48,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2019-10-22 09:01:48,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 268 transitions. [2019-10-22 09:01:48,222 INFO L711 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2019-10-22 09:01:48,222 INFO L591 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2019-10-22 09:01:48,222 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:01:48,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 268 transitions. [2019-10-22 09:01:48,223 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2019-10-22 09:01:48,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:48,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:48,230 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:48,230 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 09:01:48,230 INFO L791 eck$LassoCheckResult]: Stem: 910#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 800#L-1 havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 801#L982 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 930#L990 main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 918#L842 assume 0 != main_~tmp~10; 894#L815 ~methAndRunningLastTime~0 := 0; 895#L723 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; 841#L734-1 [2019-10-22 09:01:48,230 INFO L793 eck$LassoCheckResult]: Loop: 841#L734-1 assume !false; 871#L64 assume test_~splverifierCounter~0 < 4; 816#L65 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 797#L73 assume !(0 != test_~tmp~0); 792#L73-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 793#L83 assume !(0 != test_~tmp___0~0); 866#L83-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 867#L93 assume 0 != test_~tmp___2~0; 911#L99-2 assume !(0 != ~pumpRunning~0); 907#L501 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 804#L585 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 805#L559-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 876#L533-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 806#L940-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 807#L945-3 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 859#L687-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 926#L687-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 923#L693-3 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 886#L537-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 811#L508 havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 821#L900-1 __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; 901#L734 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 841#L734-1 [2019-10-22 09:01:48,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:48,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-10-22 09:01:48,231 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:48,231 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330341079] [2019-10-22 09:01:48,231 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,231 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:48,517 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:48,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:48,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1628692856, now seen corresponding path program 1 times [2019-10-22 09:01:48,518 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:48,518 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934832260] [2019-10-22 09:01:48,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:48,533 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:48,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:48,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1799089998, now seen corresponding path program 1 times [2019-10-22 09:01:48,534 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:48,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633872121] [2019-10-22 09:01:48,534 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,534 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:48,809 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:48,915 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-10-22 09:02:07,267 WARN L191 SmtUtils]: Spent 18.30 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-10-22 09:02:17,936 WARN L191 SmtUtils]: Spent 10.66 s on a formula simplification that was a NOOP. DAG size: 451 [2019-10-22 09:02:17,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:02:17 BoogieIcfgContainer [2019-10-22 09:02:17,994 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:02:17,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:17,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:17,995 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:17,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:46" (3/4) ... [2019-10-22 09:02:17,998 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:02:18,057 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_add0bc3b-0983-4ebb-a7e1-f3f910d6a7c8/bin/uautomizer/witness.graphml [2019-10-22 09:02:18,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:18,059 INFO L168 Benchmark]: Toolchain (without parser) took 33490.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 243.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 107.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:18,060 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:18,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:18,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.79 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 09:02:18,066 INFO L168 Benchmark]: Boogie Preprocessor took 68.30 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 09:02:18,067 INFO L168 Benchmark]: RCFGBuilder took 1058.83 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: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:18,067 INFO L168 Benchmark]: BuchiAutomizer took 31655.35 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 103.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -52.8 MB). Peak memory consumption was 286.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:18,067 INFO L168 Benchmark]: Witness Printer took 63.83 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:18,069 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 565.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.79 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 68.30 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 1058.83 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: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 31655.35 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 103.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -52.8 MB). Peak memory consumption was 286.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.83 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 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 191 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 31.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. 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 191 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 490 SDtfs, 974 SDslu, 83 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 63]: 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=-23, NULL=-21, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fe1101d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e87291f=63, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@672b99d2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70245578=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25de1fff=0, retValue_acc=1, NULL=-17, methaneLevelCritical=0, tmp___0=0, retValue_acc=0, NULL=0, NULL=0, NULL=-5, NULL=0, tmp___1=0, tmp=0, NULL=-1, NULL=-10, tmp=0, cleanupTimeShifts=4, tmp=0, NULL=-25, NULL=-9, NULL=-22, NULL=-13, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ce537e5=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@368f137b=0, NULL=0, systemActive=1, waterLevel=1, NULL=-19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b153813=0, NULL=0, NULL=-14, retValue_acc=0, \result=0, NULL=-15, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=-12, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-4, \result=1, NULL=-20, NULL=-16, NULL=-24, NULL=0, NULL=0, tmp=1, tmp___0=0, tmp___2=63, NULL=-7, retValue_acc=1, splverifierCounter=0, methAndRunningLastTime=0, \result=0, NULL=-3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7568f9ad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f466d07=0, head=0, NULL=0, NULL=-8, NULL=0, tmp=0, NULL=-2, NULL=-6, NULL=0, NULL=0, NULL=-11, NULL=0, NULL=-18, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2643963d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L287] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L493] int pumpRunning = 0; [L494] int systemActive = 1; [L717] int methAndRunningLastTime ; [L756] int cleanupTimeShifts = 4; [L857] int waterLevel = 1; [L858] int methaneLevelCritical = 0; [L833] int retValue_acc ; [L834] int tmp ; [L986] int retValue_acc ; [L989] retValue_acc = 1 [L990] return (retValue_acc); [L840] tmp = valid_product() [L842] COND TRUE \read(tmp) [L722] methAndRunningLastTime = 0 [L54] int splverifierCounter ; [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L58] int tmp___2 ; [L61] splverifierCounter = 0 Loop: [L63] COND TRUE 1 [L65] COND TRUE splverifierCounter < 4 [L71] tmp = __VERIFIER_nondet_int() [L73] COND FALSE !(\read(tmp)) [L81] tmp___0 = __VERIFIER_nondet_int() [L83] COND FALSE !(\read(tmp___0)) [L91] tmp___2 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___2) [L501] COND FALSE !(\read(pumpRunning)) [L508] COND TRUE \read(systemActive) [L582] int tmp ; [L585] COND FALSE !(\read(pumpRunning)) [L556] int tmp ; [L559] COND FALSE !(\read(pumpRunning)) [L530] int tmp ; [L533] COND TRUE ! pumpRunning [L679] int retValue_acc ; [L680] int tmp ; [L681] int tmp___0 ; [L937] int retValue_acc ; [L940] COND TRUE waterLevel < 2 [L941] retValue_acc = 1 [L942] return (retValue_acc); [L685] tmp = isHighWaterSensorDry() [L687] COND TRUE \read(tmp) [L688] tmp___0 = 0 [L692] retValue_acc = tmp___0 [L693] return (retValue_acc); [L535] tmp = isHighWaterLevel() [L537] COND FALSE !(\read(tmp)) [L727] int tmp ; [L728] int tmp___0 ; [L896] int retValue_acc ; [L899] retValue_acc = methaneLevelCritical [L900] return (retValue_acc); [L732] tmp = isMethaneLevelCritical() [L734] COND FALSE !(\read(tmp)) [L750] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...