./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_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_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/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 4f6c889e7a16ef76fe9fccec0743002e303bbe32 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:59:43,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:43,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:43,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:43,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:43,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:43,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:43,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:43,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:43,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:43,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:43,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:43,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:43,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:43,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:43,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:43,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:43,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:43,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:43,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:43,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:43,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:43,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:43,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:43,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:43,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:43,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:43,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:43,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:43,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:43,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:43,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:43,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:43,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:43,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:43,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:43,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:43,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:43,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:43,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:43,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:43,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:59:43,702 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:43,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:43,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:43,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:43,704 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:43,704 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:59:43,704 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:59:43,704 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:59:43,704 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:59:43,705 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:59:43,705 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:59:43,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:43,705 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:43,705 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:43,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:43,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:43,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:43,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:59:43,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:59:43,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:59:43,706 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:43,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:43,707 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:59:43,707 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:43,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:59:43,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:43,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:43,708 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:59:43,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:43,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:43,709 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:59:43,709 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:59:43,709 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_c49fe5ed-7a31-4f81-9976-343cc0759e76/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 -> 4f6c889e7a16ef76fe9fccec0743002e303bbe32 [2019-10-22 08:59:43,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:43,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:43,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:43,749 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:43,749 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:43,749 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2019-10-22 08:59:43,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/data/2807deda5/1ee7d4b0632c4f309986db0652565243/FLAG816adeafa [2019-10-22 08:59:44,202 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:44,202 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2019-10-22 08:59:44,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/data/2807deda5/1ee7d4b0632c4f309986db0652565243/FLAG816adeafa [2019-10-22 08:59:44,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/data/2807deda5/1ee7d4b0632c4f309986db0652565243 [2019-10-22 08:59:44,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:44,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:44,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:44,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:44,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:44,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:44" (1/1) ... [2019-10-22 08:59:44,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15bd4e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:44, skipping insertion in model container [2019-10-22 08:59:44,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:44" (1/1) ... [2019-10-22 08:59:44,592 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:44,642 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:44,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:44,935 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:45,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:45,034 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:45,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45 WrapperNode [2019-10-22 08:59:45,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:45,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:45,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:45,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:45,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:45,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:45,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:45,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:45,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... [2019-10-22 08:59:45,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:45,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:45,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:45,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:45,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/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 08:59:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:59:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:46,090 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:46,091 INFO L284 CfgBuilder]: Removed 290 assume(true) statements. [2019-10-22 08:59:46,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:46 BoogieIcfgContainer [2019-10-22 08:59:46,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:46,093 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:59:46,093 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:59:46,096 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:59:46,097 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:46,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:59:44" (1/3) ... [2019-10-22 08:59:46,098 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34e9c9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:46, skipping insertion in model container [2019-10-22 08:59:46,099 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:46,099 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:45" (2/3) ... [2019-10-22 08:59:46,099 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34e9c9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:46, skipping insertion in model container [2019-10-22 08:59:46,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:46,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:46" (3/3) ... [2019-10-22 08:59:46,101 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2019-10-22 08:59:46,146 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:59:46,146 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:59:46,146 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:59:46,146 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:46,146 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:46,147 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:59:46,147 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:46,147 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:59:46,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states. [2019-10-22 08:59:46,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2019-10-22 08:59:46,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:46,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:46,209 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:46,210 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:46,210 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:59:46,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states. [2019-10-22 08:59:46,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2019-10-22 08:59:46,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:46,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:46,224 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:46,226 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:46,231 INFO L791 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~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); 6#L-1true havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 175#L669true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 111#L677true main_#t~ret65 := valid_product_#res;main_~tmp~10 := main_#t~ret65;havoc main_#t~ret65; 65#L884true assume 0 != main_~tmp~10; 149#L860true ~switchedOnBeforeTS~0 := 0; 36#L758true havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 183#L779-1true [2019-10-22 08:59:46,236 INFO L793 eck$LassoCheckResult]: Loop: 183#L779-1true assume !false; 187#L696true assume test_~splverifierCounter~0 < 4; 54#L697true test_~tmp~8 := test_#t~nondet58;havoc test_#t~nondet58; 82#L705true assume !(0 != test_~tmp~8); 84#L705-1true test_~tmp___0~2 := test_#t~nondet59;havoc test_#t~nondet59; 120#L715true assume !(0 != test_~tmp___0~2); 123#L715-1true test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 38#L725true assume 0 != test_~tmp___2~0; 3#L731-2true havoc __utac_acc__Specification5_spec__2_#t~ret62;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 62#L565true __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 182#L768true assume !(0 != ~pumpRunning~0); 19#L428true assume !(0 != ~systemActive~0); 91#L435true havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~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; 191#L982true __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 181#L779true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 183#L779-1true [2019-10-22 08:59:46,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:46,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-10-22 08:59:46,249 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:46,249 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127669997] [2019-10-22 08:59:46,250 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:46,250 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:46,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:47,176 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:47,177 INFO L82 PathProgramCache]: Analyzing trace with hash 99399404, now seen corresponding path program 1 times [2019-10-22 08:59:47,178 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:47,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971202975] [2019-10-22 08:59:47,178 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:47,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:47,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:47,197 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:47,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:47,201 INFO L82 PathProgramCache]: Analyzing trace with hash 2033424614, now seen corresponding path program 1 times [2019-10-22 08:59:47,201 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:47,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017850239] [2019-10-22 08:59:47,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:47,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:47,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:47,360 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 08:59:47,360 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017850239] [2019-10-22 08:59:47,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:47,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:47,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87767229] [2019-10-22 08:59:47,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:47,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:47,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:47,506 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 6 states. [2019-10-22 08:59:47,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:47,680 INFO L93 Difference]: Finished difference Result 195 states and 286 transitions. [2019-10-22 08:59:47,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:47,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 286 transitions. [2019-10-22 08:59:47,685 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2019-10-22 08:59:47,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 188 states and 279 transitions. [2019-10-22 08:59:47,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2019-10-22 08:59:47,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2019-10-22 08:59:47,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 279 transitions. [2019-10-22 08:59:47,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:47,705 INFO L688 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2019-10-22 08:59:47,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 279 transitions. [2019-10-22 08:59:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2019-10-22 08:59:47,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2019-10-22 08:59:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 279 transitions. [2019-10-22 08:59:47,742 INFO L711 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2019-10-22 08:59:47,742 INFO L591 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2019-10-22 08:59:47,742 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:59:47,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 279 transitions. [2019-10-22 08:59:47,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2019-10-22 08:59:47,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:47,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:47,751 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:47,751 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:47,751 INFO L791 eck$LassoCheckResult]: Stem: 595#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~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); 433#L-1 havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 434#L669 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 586#L677 main_#t~ret65 := valid_product_#res;main_~tmp~10 := main_#t~ret65;havoc main_#t~ret65; 534#L884 assume 0 != main_~tmp~10; 487#L860 ~switchedOnBeforeTS~0 := 0; 488#L758 havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 494#L779-1 [2019-10-22 08:59:47,751 INFO L793 eck$LassoCheckResult]: Loop: 494#L779-1 assume !false; 593#L696 assume test_~splverifierCounter~0 < 4; 520#L697 test_~tmp~8 := test_#t~nondet58;havoc test_#t~nondet58; 521#L705 assume !(0 != test_~tmp~8); 567#L705-1 test_~tmp___0~2 := test_#t~nondet59;havoc test_#t~nondet59; 572#L715 assume !(0 != test_~tmp___0~2); 485#L715-1 test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 503#L725 assume 0 != test_~tmp___2~0; 413#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret62;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 414#L565 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 530#L768 assume !(0 != ~pumpRunning~0); 467#L428 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 468#L512 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 448#L486-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret35, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 450#L460-3 assume !(0 == ~pumpRunning~0); 416#L435 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~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; 584#L982 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 591#L779 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 494#L779-1 [2019-10-22 08:59:47,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:47,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-10-22 08:59:47,752 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:47,752 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306566271] [2019-10-22 08:59:47,752 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:47,752 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:47,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:48,145 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:48,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:48,149 INFO L82 PathProgramCache]: Analyzing trace with hash -416203938, now seen corresponding path program 1 times [2019-10-22 08:59:48,150 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:48,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412269583] [2019-10-22 08:59:48,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:48,164 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 08:59:48,164 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412269583] [2019-10-22 08:59:48,164 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:48,164 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:48,165 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765085181] [2019-10-22 08:59:48,165 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:59:48,165 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:48,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:48,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:48,166 INFO L87 Difference]: Start difference. First operand 188 states and 279 transitions. cyclomatic complexity: 93 Second operand 3 states. [2019-10-22 08:59:48,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:48,315 INFO L93 Difference]: Finished difference Result 201 states and 278 transitions. [2019-10-22 08:59:48,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:48,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 278 transitions. [2019-10-22 08:59:48,320 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2019-10-22 08:59:48,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 278 transitions. [2019-10-22 08:59:48,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2019-10-22 08:59:48,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2019-10-22 08:59:48,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 278 transitions. [2019-10-22 08:59:48,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:48,322 INFO L688 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2019-10-22 08:59:48,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 278 transitions. [2019-10-22 08:59:48,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2019-10-22 08:59:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-10-22 08:59:48,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2019-10-22 08:59:48,340 INFO L711 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2019-10-22 08:59:48,340 INFO L591 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2019-10-22 08:59:48,340 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:59:48,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 278 transitions. [2019-10-22 08:59:48,342 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2019-10-22 08:59:48,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:48,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:48,342 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:48,342 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, 1, 1] [2019-10-22 08:59:48,343 INFO L791 eck$LassoCheckResult]: Stem: 954#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~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); 824#L-1 havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 825#L669 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 947#L677 main_#t~ret65 := valid_product_#res;main_~tmp~10 := main_#t~ret65;havoc main_#t~ret65; 911#L884 assume 0 != main_~tmp~10; 872#L860 ~switchedOnBeforeTS~0 := 0; 873#L758 havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 878#L779-1 [2019-10-22 08:59:48,345 INFO L793 eck$LassoCheckResult]: Loop: 878#L779-1 assume !false; 953#L696 assume test_~splverifierCounter~0 < 4; 902#L697 test_~tmp~8 := test_#t~nondet58;havoc test_#t~nondet58; 903#L705 assume !(0 != test_~tmp~8); 933#L705-1 test_~tmp___0~2 := test_#t~nondet59;havoc test_#t~nondet59; 938#L715 assume !(0 != test_~tmp___0~2); 869#L715-1 test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 886#L725 assume 0 != test_~tmp___2~0; 806#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret62;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 807#L565 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 910#L768 assume !(0 != ~pumpRunning~0); 855#L428 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 856#L512 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 837#L486-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret35, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 838#L460-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 914#L990-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 862#L995-3 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 863#L614-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 918#L614-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 888#L620-3 processEnvironment__wrappee__highWaterSensor_#t~ret35 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret35;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35; 812#L464-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 814#L435 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~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; 944#L982 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 952#L779 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 878#L779-1 [2019-10-22 08:59:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:48,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-10-22 08:59:48,346 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:48,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221685697] [2019-10-22 08:59:48,346 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,346 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:48,626 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:48,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:48,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1258364778, now seen corresponding path program 1 times [2019-10-22 08:59:48,626 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:48,626 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048658286] [2019-10-22 08:59:48,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,627 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:48,649 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 08:59:48,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048658286] [2019-10-22 08:59:48,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:48,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:59:48,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047121188] [2019-10-22 08:59:48,650 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:59:48,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:48,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:48,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:48,650 INFO L87 Difference]: Start difference. First operand 201 states and 278 transitions. cyclomatic complexity: 79 Second operand 5 states. [2019-10-22 08:59:48,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:48,851 INFO L93 Difference]: Finished difference Result 577 states and 781 transitions. [2019-10-22 08:59:48,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:48,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 577 states and 781 transitions. [2019-10-22 08:59:48,855 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 367 [2019-10-22 08:59:48,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 577 states to 577 states and 781 transitions. [2019-10-22 08:59:48,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 577 [2019-10-22 08:59:48,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 577 [2019-10-22 08:59:48,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 577 states and 781 transitions. [2019-10-22 08:59:48,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:48,862 INFO L688 BuchiCegarLoop]: Abstraction has 577 states and 781 transitions. [2019-10-22 08:59:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states and 781 transitions. [2019-10-22 08:59:48,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 395. [2019-10-22 08:59:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-10-22 08:59:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 532 transitions. [2019-10-22 08:59:48,885 INFO L711 BuchiCegarLoop]: Abstraction has 395 states and 532 transitions. [2019-10-22 08:59:48,885 INFO L591 BuchiCegarLoop]: Abstraction has 395 states and 532 transitions. [2019-10-22 08:59:48,885 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:59:48,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 395 states and 532 transitions. [2019-10-22 08:59:48,887 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 276 [2019-10-22 08:59:48,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:48,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:48,888 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:48,889 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, 1, 1, 1, 1] [2019-10-22 08:59:48,890 INFO L791 eck$LassoCheckResult]: Stem: 1752#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~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); 1618#L-1 havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 1619#L669 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1743#L677 main_#t~ret65 := valid_product_#res;main_~tmp~10 := main_#t~ret65;havoc main_#t~ret65; 1707#L884 assume 0 != main_~tmp~10; 1666#L860 ~switchedOnBeforeTS~0 := 0; 1667#L758 havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1672#L779-1 [2019-10-22 08:59:48,890 INFO L793 eck$LassoCheckResult]: Loop: 1672#L779-1 assume !false; 1750#L696 assume test_~splverifierCounter~0 < 4; 1696#L697 test_~tmp~8 := test_#t~nondet58;havoc test_#t~nondet58; 1697#L705 assume !(0 != test_~tmp~8); 1728#L705-1 test_~tmp___0~2 := test_#t~nondet59;havoc test_#t~nondet59; 1733#L715 assume !(0 != test_~tmp___0~2); 1663#L715-1 test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 1680#L725 assume 0 != test_~tmp___2~0; 1600#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret62;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1601#L565 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 1704#L768 assume !(0 != ~pumpRunning~0); 1649#L428 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1650#L512 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 1631#L486-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret35, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1632#L460-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1708#L990-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1761#L995-3 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 1953#L614-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 1950#L614-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1682#L620-3 processEnvironment__wrappee__highWaterSensor_#t~ret35 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret35;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35; 1606#L464-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1608#L435 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~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; 1739#L982 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 1749#L779 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1681#L565-1 __utac_acc__Specification5_spec__3_#t~ret64 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret64;havoc __utac_acc__Specification5_spec__3_#t~ret64; 1671#L783 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1672#L779-1 [2019-10-22 08:59:48,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:48,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-10-22 08:59:48,891 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:48,891 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487278695] [2019-10-22 08:59:48,891 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,891 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:49,181 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:49,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:49,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1892234555, now seen corresponding path program 1 times [2019-10-22 08:59:49,182 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:49,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839675611] [2019-10-22 08:59:49,183 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,183 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:49,195 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:49,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:49,197 INFO L82 PathProgramCache]: Analyzing trace with hash 436521099, now seen corresponding path program 1 times [2019-10-22 08:59:49,197 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:49,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575210051] [2019-10-22 08:59:49,198 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,198 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:49,472 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:49,604 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-10-22 09:00:06,495 WARN L191 SmtUtils]: Spent 16.82 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-10-22 09:00:17,556 WARN L191 SmtUtils]: Spent 11.06 s on a formula simplification that was a NOOP. DAG size: 451 [2019-10-22 09:00:17,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:00:17 BoogieIcfgContainer [2019-10-22 09:00:17,612 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:00:17,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:17,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:17,613 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:17,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:46" (3/4) ... [2019-10-22 09:00:17,616 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:00:17,664 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c49fe5ed-7a31-4f81-9976-343cc0759e76/bin/uautomizer/witness.graphml [2019-10-22 09:00:17,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:17,665 INFO L168 Benchmark]: Toolchain (without parser) took 33088.39 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 278.4 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 76.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:17,665 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 09:00:17,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:17,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.34 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 09:00:17,666 INFO L168 Benchmark]: Boogie Preprocessor took 76.97 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 09:00:17,667 INFO L168 Benchmark]: RCFGBuilder took 898.95 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: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:17,667 INFO L168 Benchmark]: BuchiAutomizer took 31519.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 137.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -108.0 MB). Peak memory consumption was 285.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:17,668 INFO L168 Benchmark]: Witness Printer took 51.15 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: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:17,669 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 457.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.34 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. * Boogie Preprocessor took 76.97 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. * RCFGBuilder took 898.95 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: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 31519.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 137.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -108.0 MB). Peak memory consumption was 285.3 MB. Max. memory is 11.5 GB. * Witness Printer took 51.15 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: 2.9 MB). Peak memory consumption was 2.9 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 395 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 30.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 182 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 395 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 845 SDtfs, 1995 SDslu, 843 SDs, 0 SdLazy, 169 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 695]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12926} State at position 1 is {retValue_acc=1, NULL=0, NULL=0, NULL=12926, NULL=-1, NULL=12925, NULL=0, methaneLevelCritical=0, retValue_acc=0, NULL=0, tmp=0, tmp___1=0, NULL=-11, NULL=-4, NULL=-6, cleanupTimeShifts=4, NULL=6842, tmp=1, NULL=0, NULL=0, waterLevel=1, NULL=0, NULL=-9, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1114e2c4=0, head=0, pumpRunning=0, \result=1, NULL=0, NULL=-3, NULL=0, NULL=0, tmp___0=0, NULL=-13, tmp=1, NULL=-20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27e37876=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@240dd2c4=0, head=0, NULL=0, tmp=0, NULL=-12, NULL=-2, NULL=0, NULL=0, NULL=0, retValue_acc=0, tmp=1, tmp___0=0, NULL=0, tmp=0, NULL=-8, tmp=0, switchedOnBeforeTS=0, NULL=-5, NULL=-19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51abfa39=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a22d454=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=-16, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d4eb9=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=-21, \result=0, NULL=-15, tmp___0=0, NULL=-22, NULL=0, NULL=0, NULL=-17, NULL=-18, NULL=-7, retValue_acc=1, retValue_acc=1, tmp___2=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@640e1d4b=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cc36e5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25ff67e1=0, NULL=-14, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a4906f2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f4f00be=60, NULL=0, NULL=2730, NULL=-10, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fbb181=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int pumpRunning = 0; [L417] int systemActive = 1; [L752] int switchedOnBeforeTS ; [L801] int cleanupTimeShifts = 4; [L907] int waterLevel = 1; [L908] int methaneLevelCritical = 0; [L875] int retValue_acc ; [L876] int tmp ; [L673] int retValue_acc ; [L676] retValue_acc = 1 [L677] return (retValue_acc); [L882] tmp = valid_product() [L884] COND TRUE \read(tmp) [L757] switchedOnBeforeTS = 0 [L686] int splverifierCounter ; [L687] int tmp ; [L688] int tmp___0 ; [L689] int tmp___1 ; [L690] int tmp___2 ; [L693] splverifierCounter = 0 Loop: [L695] COND TRUE 1 [L697] COND TRUE splverifierCounter < 4 [L703] tmp = __VERIFIER_nondet_int() [L705] COND FALSE !(\read(tmp)) [L713] tmp___0 = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp___0)) [L723] tmp___2 = __VERIFIER_nondet_int() [L725] COND TRUE \read(tmp___2) [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); [L766] switchedOnBeforeTS = isPumpRunning() [L428] COND FALSE !(\read(pumpRunning)) [L435] COND TRUE \read(systemActive) [L509] int tmp ; [L512] COND FALSE !(\read(pumpRunning)) [L483] int tmp ; [L486] COND FALSE !(\read(pumpRunning)) [L457] int tmp ; [L460] COND TRUE ! pumpRunning [L606] int retValue_acc ; [L607] int tmp ; [L608] int tmp___0 ; [L987] int retValue_acc ; [L990] COND TRUE waterLevel < 2 [L991] retValue_acc = 1 [L992] return (retValue_acc); [L612] tmp = isHighWaterSensorDry() [L614] COND TRUE \read(tmp) [L615] tmp___0 = 0 [L619] retValue_acc = tmp___0 [L620] return (retValue_acc); [L462] tmp = isHighWaterLevel() [L464] COND FALSE !(\read(tmp)) [L772] int tmp ; [L773] int tmp___0 ; [L978] int retValue_acc ; [L981] retValue_acc = waterLevel [L982] return (retValue_acc); [L777] tmp = getWaterLevel() [L779] COND TRUE tmp != 2 [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); [L781] tmp___0 = isPumpRunning() [L783] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...