./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/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 1b0c0c83f247eef1881f0b5170efc2ede9b08897 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-20 01:27:15,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:27:15,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:27:16,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:27:16,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:27:16,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:27:16,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:27:16,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:27:16,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:27:16,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:27:16,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:27:16,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:27:16,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:27:16,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:27:16,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:27:16,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:27:16,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:27:16,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:27:16,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:27:16,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:27:16,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:27:16,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:27:16,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:27:16,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:27:16,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:27:16,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:27:16,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:27:16,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:27:16,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:27:16,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:27:16,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:27:16,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:27:16,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:27:16,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:27:16,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:27:16,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:27:16,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:27:16,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:27:16,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:27:16,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:27:16,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:27:16,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 01:27:16,115 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:27:16,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:27:16,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:27:16,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:27:16,118 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:27:16,118 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 01:27:16,119 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 01:27:16,119 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 01:27:16,119 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 01:27:16,120 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 01:27:16,121 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 01:27:16,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:27:16,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:27:16,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:27:16,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:27:16,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:27:16,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:27:16,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 01:27:16,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 01:27:16,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 01:27:16,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:27:16,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:27:16,124 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 01:27:16,124 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:27:16,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 01:27:16,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:27:16,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:27:16,126 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 01:27:16,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:27:16,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:27:16,126 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 01:27:16,127 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 01:27:16,128 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/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 -> 1b0c0c83f247eef1881f0b5170efc2ede9b08897 [2019-11-20 01:27:16,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:27:16,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:27:16,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:27:16,364 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:27:16,364 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:27:16,365 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2019-11-20 01:27:16,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/data/8b918acf8/d1c5fa94b5c8478381d5d2cbcfe700b6/FLAGd4cdc40dd [2019-11-20 01:27:16,997 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:27:16,998 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2019-11-20 01:27:17,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/data/8b918acf8/d1c5fa94b5c8478381d5d2cbcfe700b6/FLAGd4cdc40dd [2019-11-20 01:27:17,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/data/8b918acf8/d1c5fa94b5c8478381d5d2cbcfe700b6 [2019-11-20 01:27:17,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:27:17,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:27:17,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:27:17,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:27:17,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:27:17,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:27:17" (1/1) ... [2019-11-20 01:27:17,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd64ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:17, skipping insertion in model container [2019-11-20 01:27:17,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:27:17" (1/1) ... [2019-11-20 01:27:17,316 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:27:17,369 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:27:17,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:27:17,884 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:27:17,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:27:18,024 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:27:18,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18 WrapperNode [2019-11-20 01:27:18,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:27:18,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:27:18,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:27:18,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:27:18,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:27:18,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:27:18,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:27:18,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:27:18,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... [2019-11-20 01:27:18,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:27:18,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:27:18,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:27:18,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:27:18,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:27:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:27:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 01:27:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:27:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:27:19,304 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:27:19,305 INFO L285 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-20 01:27:19,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:27:19 BoogieIcfgContainer [2019-11-20 01:27:19,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:27:19,307 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 01:27:19,307 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 01:27:19,311 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 01:27:19,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:27:19,312 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 01:27:17" (1/3) ... [2019-11-20 01:27:19,313 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c71bf61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:27:19, skipping insertion in model container [2019-11-20 01:27:19,314 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:27:19,314 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:18" (2/3) ... [2019-11-20 01:27:19,314 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c71bf61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:27:19, skipping insertion in model container [2019-11-20 01:27:19,314 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:27:19,315 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:27:19" (3/3) ... [2019-11-20 01:27:19,316 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2019-11-20 01:27:19,367 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 01:27:19,367 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 01:27:19,367 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 01:27:19,367 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:27:19,367 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:27:19,367 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 01:27:19,368 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:27:19,368 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 01:27:19,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-11-20 01:27:19,433 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-20 01:27:19,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:27:19,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:27:19,440 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 01:27:19,441 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:27:19,441 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 01:27:19,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-11-20 01:27:19,449 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-20 01:27:19,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:27:19,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:27:19,450 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 01:27:19,450 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:27:19,455 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 5#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 4#L921true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 13#L929true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 43#L130true assume 0 != main_~tmp~0; 12#L103true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 116#L880-1true [2019-11-20 01:27:19,456 INFO L796 eck$LassoCheckResult]: Loop: 116#L880-1true assume !false; 84#L707true assume test_~splverifierCounter~0 < 4; 36#L708true test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 49#L716true assume !(0 != test_~tmp~7); 50#L716-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 110#L726true assume !(0 != test_~tmp___0~1); 113#L726-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 28#L736true assume 0 != test_~tmp___2~0; 3#L742-2true assume !(0 != ~pumpRunning~0); 107#L525true assume !(0 != ~systemActive~0); 30#L532true havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 9#L805-1true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 16#L874true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 116#L880-1true [2019-11-20 01:27:19,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:19,463 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-20 01:27:19,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:19,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782394565] [2019-11-20 01:27:19,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:19,843 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:19,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:19,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1679990667, now seen corresponding path program 1 times [2019-11-20 01:27:19,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:19,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828294390] [2019-11-20 01:27:19,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:19,875 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:19,878 INFO L82 PathProgramCache]: Analyzing trace with hash 34288271, now seen corresponding path program 1 times [2019-11-20 01:27:19,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:19,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396017994] [2019-11-20 01:27:19,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:27:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:27:20,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396017994] [2019-11-20 01:27:20,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:27:20,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:27:20,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886443921] [2019-11-20 01:27:20,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:27:20,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 01:27:20,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:27:20,239 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 6 states. [2019-11-20 01:27:20,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:27:20,411 INFO L93 Difference]: Finished difference Result 114 states and 163 transitions. [2019-11-20 01:27:20,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:27:20,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 163 transitions. [2019-11-20 01:27:20,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-20 01:27:20,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2019-11-20 01:27:20,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2019-11-20 01:27:20,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2019-11-20 01:27:20,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2019-11-20 01:27:20,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:27:20,432 INFO L688 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-20 01:27:20,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2019-11-20 01:27:20,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-11-20 01:27:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 01:27:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2019-11-20 01:27:20,474 INFO L711 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-20 01:27:20,474 INFO L591 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-20 01:27:20,474 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 01:27:20,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2019-11-20 01:27:20,478 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-20 01:27:20,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:27:20,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:27:20,479 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 01:27:20,479 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:27:20,479 INFO L794 eck$LassoCheckResult]: Stem: 340#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 251#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 249#L921 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 250#L929 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 266#L130 assume 0 != main_~tmp~0; 264#L103 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 265#L880-1 [2019-11-20 01:27:20,480 INFO L796 eck$LassoCheckResult]: Loop: 265#L880-1 assume !false; 344#L707 assume test_~splverifierCounter~0 < 4; 296#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 297#L716 assume !(0 != test_~tmp~7); 282#L716-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 310#L726 assume !(0 != test_~tmp___0~1); 352#L726-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 288#L736 assume 0 != test_~tmp___2~0; 246#L742-2 assume !(0 != ~pumpRunning~0); 247#L525 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 348#L583 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 283#L557-1 assume !(0 == ~pumpRunning~0); 280#L532 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 259#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 260#L874 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 265#L880-1 [2019-11-20 01:27:20,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:20,480 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-20 01:27:20,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:20,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668327334] [2019-11-20 01:27:20,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:20,607 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:20,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:20,608 INFO L82 PathProgramCache]: Analyzing trace with hash -2003597172, now seen corresponding path program 1 times [2019-11-20 01:27:20,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:20,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677615312] [2019-11-20 01:27:20,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:27:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:27:20,637 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677615312] [2019-11-20 01:27:20,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:27:20,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 01:27:20,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148916356] [2019-11-20 01:27:20,638 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 01:27:20,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:27:20,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 01:27:20,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:27:20,640 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2019-11-20 01:27:20,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:27:20,786 INFO L93 Difference]: Finished difference Result 154 states and 213 transitions. [2019-11-20 01:27:20,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 01:27:20,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 213 transitions. [2019-11-20 01:27:20,792 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2019-11-20 01:27:20,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 154 states and 213 transitions. [2019-11-20 01:27:20,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2019-11-20 01:27:20,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2019-11-20 01:27:20,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 213 transitions. [2019-11-20 01:27:20,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:27:20,808 INFO L688 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2019-11-20 01:27:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 213 transitions. [2019-11-20 01:27:20,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-20 01:27:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-20 01:27:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 213 transitions. [2019-11-20 01:27:20,832 INFO L711 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2019-11-20 01:27:20,833 INFO L591 BuchiCegarLoop]: Abstraction has 154 states and 213 transitions. [2019-11-20 01:27:20,833 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 01:27:20,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 213 transitions. [2019-11-20 01:27:20,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2019-11-20 01:27:20,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:27:20,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:27:20,844 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 01:27:20,844 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] [2019-11-20 01:27:20,845 INFO L794 eck$LassoCheckResult]: Stem: 619#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 517#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 515#L921 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 516#L929 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 534#L130 assume 0 != main_~tmp~0; 532#L103 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 533#L880-1 [2019-11-20 01:27:20,845 INFO L796 eck$LassoCheckResult]: Loop: 533#L880-1 assume !false; 623#L707 assume test_~splverifierCounter~0 < 4; 566#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 567#L716 assume !(0 != test_~tmp~7); 550#L716-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 583#L726 assume !(0 != test_~tmp___0~1); 633#L726-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 642#L736 assume 0 != test_~tmp___2~0; 513#L742-2 assume !(0 != ~pumpRunning~0); 514#L525 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 627#L583 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 551#L557-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 552#L845-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 611#L850-1 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 626#L685-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 620#L685-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 592#L691-1 processEnvironment__wrappee__highWaterSensor_#t~ret36 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret36;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36; 593#L561-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 559#L532 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 526#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 527#L874 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 533#L880-1 [2019-11-20 01:27:20,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:20,846 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-20 01:27:20,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:20,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464851698] [2019-11-20 01:27:20,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,035 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:21,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:21,037 INFO L82 PathProgramCache]: Analyzing trace with hash 456147480, now seen corresponding path program 1 times [2019-11-20 01:27:21,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:21,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692664128] [2019-11-20 01:27:21,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,061 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:21,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:21,062 INFO L82 PathProgramCache]: Analyzing trace with hash 912218674, now seen corresponding path program 1 times [2019-11-20 01:27:21,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:21,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652925932] [2019-11-20 01:27:21,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:27:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:27:21,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652925932] [2019-11-20 01:27:21,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:27:21,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 01:27:21,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026922536] [2019-11-20 01:27:21,333 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-20 01:27:21,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:27:21,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:27:21,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:27:21,434 INFO L87 Difference]: Start difference. First operand 154 states and 213 transitions. cyclomatic complexity: 61 Second operand 5 states. [2019-11-20 01:27:21,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:27:21,646 INFO L93 Difference]: Finished difference Result 513 states and 712 transitions. [2019-11-20 01:27:21,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 01:27:21,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 513 states and 712 transitions. [2019-11-20 01:27:21,654 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 372 [2019-11-20 01:27:21,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 513 states to 513 states and 712 transitions. [2019-11-20 01:27:21,662 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 513 [2019-11-20 01:27:21,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 513 [2019-11-20 01:27:21,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 513 states and 712 transitions. [2019-11-20 01:27:21,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:27:21,674 INFO L688 BuchiCegarLoop]: Abstraction has 513 states and 712 transitions. [2019-11-20 01:27:21,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states and 712 transitions. [2019-11-20 01:27:21,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 302. [2019-11-20 01:27:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-11-20 01:27:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 412 transitions. [2019-11-20 01:27:21,719 INFO L711 BuchiCegarLoop]: Abstraction has 302 states and 412 transitions. [2019-11-20 01:27:21,720 INFO L591 BuchiCegarLoop]: Abstraction has 302 states and 412 transitions. [2019-11-20 01:27:21,720 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 01:27:21,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 412 transitions. [2019-11-20 01:27:21,723 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 212 [2019-11-20 01:27:21,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:27:21,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:27:21,726 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 01:27:21,726 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] [2019-11-20 01:27:21,726 INFO L794 eck$LassoCheckResult]: Stem: 1304#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 1202#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1200#L921 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1201#L929 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1218#L130 assume 0 != main_~tmp~0; 1214#L103 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1215#L880-1 [2019-11-20 01:27:21,727 INFO L796 eck$LassoCheckResult]: Loop: 1215#L880-1 assume !false; 1463#L707 assume test_~splverifierCounter~0 < 4; 1247#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 1248#L716 assume !(0 != test_~tmp~7); 1234#L716-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 1266#L726 assume !(0 != test_~tmp___0~1); 1327#L726-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 1238#L736 assume 0 != test_~tmp___2~0; 1198#L742-2 assume !(0 != ~pumpRunning~0); 1199#L525 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1317#L583 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1231#L557-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1232#L845-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1296#L850-1 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 1316#L685-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 1305#L685-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1276#L691-1 processEnvironment__wrappee__highWaterSensor_#t~ret36 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret36;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36; 1277#L561-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1250#L532 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1353#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 1354#L874 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1349#L837 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 1350#L880 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1215#L880-1 [2019-11-20 01:27:21,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:21,727 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-20 01:27:21,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:21,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144640992] [2019-11-20 01:27:21,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:21,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:21,869 INFO L82 PathProgramCache]: Analyzing trace with hash 271071754, now seen corresponding path program 1 times [2019-11-20 01:27:21,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:21,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333754998] [2019-11-20 01:27:21,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,885 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:21,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:21,886 INFO L82 PathProgramCache]: Analyzing trace with hash 468824996, now seen corresponding path program 1 times [2019-11-20 01:27:21,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:21,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380140062] [2019-11-20 01:27:21,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:21,997 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:22,182 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-20 01:27:52,614 WARN L191 SmtUtils]: Spent 30.33 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-20 01:28:10,096 WARN L191 SmtUtils]: Spent 17.48 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-20 01:28:10,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 01:28:10 BoogieIcfgContainer [2019-11-20 01:28:10,212 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 01:28:10,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:28:10,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:28:10,213 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:28:10,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:27:19" (3/4) ... [2019-11-20 01:28:10,217 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 01:28:10,323 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_65b38400-a778-4526-9eac-974b13f5cafc/bin/uautomizer/witness.graphml [2019-11-20 01:28:10,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:28:10,325 INFO L168 Benchmark]: Toolchain (without parser) took 53029.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 948.7 MB in the beginning and 980.9 MB in the end (delta: -32.1 MB). Peak memory consumption was 177.6 MB. Max. memory is 11.5 GB. [2019-11-20 01:28:10,326 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:28:10,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-11-20 01:28:10,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.24 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. [2019-11-20 01:28:10,327 INFO L168 Benchmark]: Boogie Preprocessor took 94.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:28:10,329 INFO L168 Benchmark]: RCFGBuilder took 1098.95 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:28:10,334 INFO L168 Benchmark]: BuchiAutomizer took 50904.87 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 990.2 MB in the end (delta: 75.8 MB). Peak memory consumption was 235.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:28:10,335 INFO L168 Benchmark]: Witness Printer took 111.37 ms. Allocated memory is still 1.2 GB. Free memory was 990.2 MB in the beginning and 980.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:28:10,344 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 728.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.24 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 94.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1098.95 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 50904.87 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 990.2 MB in the end (delta: 75.8 MB). Peak memory consumption was 235.4 MB. Max. memory is 11.5 GB. * Witness Printer took 111.37 ms. Allocated memory is still 1.2 GB. Free memory was 990.2 MB in the beginning and 980.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 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 302 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 50.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 49.9s. 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, 211 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 302 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 541 SDtfs, 1194 SDslu, 742 SDs, 0 SdLazy, 109 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 706]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3584} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=3584, NULL=13005, NULL=0, NULL=0, NULL=0, NULL=3596, NULL=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, NULL=0, NULL=0, NULL=13004, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@368d304a=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14cc0769=0, tmp___1=0, NULL=3600, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13b10a0=0, NULL=3597, NULL=13006, NULL=13007, tmp=0, cleanupTimeShifts=4, NULL=3592, NULL=3593, NULL=3595, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1271a5fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22e9e21a=0, tmp=0, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=3586, \result=1, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=3585, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=21504, NULL=3599, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2366ade9=0, NULL=0, NULL=0, \result=1, NULL=12998, NULL=3598, NULL=3591, NULL=13003, retValue_acc=1, tmp___2=59, NULL=3602, tmp___0=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fcc4b3=0, splverifierCounter=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b651caf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30321df4=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17e8aaad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11e17415=0, tmp___1=0, head=0, NULL=0, tmp=0, NULL=13002, NULL=0, NULL=13001, NULL=0, NULL=13000, NULL=0, NULL=0, NULL=12999, NULL=21503, NULL=0, NULL=3594} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int pumpRunning = 0; [L518] int systemActive = 1; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L925] int retValue_acc ; [L928] retValue_acc = 1 [L929] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 Loop: [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L525] COND FALSE !(\read(pumpRunning)) [L532] COND TRUE \read(systemActive) [L580] int tmp ; [L583] COND FALSE !(\read(pumpRunning)) [L554] int tmp ; [L557] COND TRUE ! pumpRunning [L677] int retValue_acc ; [L678] int tmp ; [L679] int tmp___0 ; [L842] int retValue_acc ; [L845] COND TRUE waterLevel < 2 [L846] retValue_acc = 1 [L847] return (retValue_acc); [L683] tmp = isHighWaterSensorDry() [L685] COND TRUE \read(tmp) [L686] tmp___0 = 0 [L690] retValue_acc = tmp___0 [L691] return (retValue_acc); [L559] tmp = isHighWaterLevel() [L561] COND FALSE !(\read(tmp)) [L866] int tmp ; [L867] int tmp___0 ; [L868] int tmp___1 ; [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] return (retValue_acc); [L872] tmp = isMethaneLevelCritical() [L874] COND FALSE !(\read(tmp)) [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] return (retValue_acc); [L878] tmp___0 = getWaterLevel() [L880] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...