./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/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 51759f83c5c8a18147c4d3cfcc22a931ec36cde5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-30 01:02:46,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:46,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:47,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:47,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:47,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:47,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:47,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:47,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:47,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:47,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:47,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:47,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:47,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:47,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:47,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:47,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:47,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:47,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:47,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:47,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:47,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:47,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:47,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:47,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:47,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:47,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:47,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:47,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:47,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:47,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:47,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:47,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:47,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:47,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:47,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:47,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:47,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:47,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:47,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:47,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:47,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:02:47,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:47,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:47,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:47,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:47,142 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:47,142 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:02:47,143 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:02:47,143 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:02:47,143 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:02:47,143 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:02:47,144 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:02:47,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:47,145 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:47,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:02:47,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:47,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:47,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:47,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:02:47,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:02:47,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:02:47,148 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:47,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:02:47,149 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:02:47,154 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:47,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:02:47,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:47,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:47,155 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:02:47,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:47,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:02:47,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:47,155 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:02:47,156 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:02:47,157 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51759f83c5c8a18147c4d3cfcc22a931ec36cde5 [2020-11-30 01:02:47,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:47,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:47,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:47,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:47,460 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:47,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2020-11-30 01:02:47,545 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/data/d7eae431b/790ec1572d314f46b327ee3005d72ee2/FLAG0d5966efc [2020-11-30 01:02:48,002 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:48,005 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2020-11-30 01:02:48,026 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/data/d7eae431b/790ec1572d314f46b327ee3005d72ee2/FLAG0d5966efc [2020-11-30 01:02:48,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/data/d7eae431b/790ec1572d314f46b327ee3005d72ee2 [2020-11-30 01:02:48,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:48,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:02:48,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:48,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:48,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:48,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:48,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f6eb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48, skipping insertion in model container [2020-11-30 01:02:48,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:48,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:48,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:48,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:48,722 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:48,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:48,870 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:48,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48 WrapperNode [2020-11-30 01:02:48,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:48,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:48,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:02:48,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:02:48,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:48,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:48,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:48,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:48,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:48,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:48,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:48,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:48,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:48,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:49,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:49,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:49,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... [2020-11-30 01:02:49,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:49,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:49,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:49,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:49,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/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 [2020-11-30 01:02:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:02:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:49,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:50,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:50,111 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-30 01:02:50,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:50 BoogieIcfgContainer [2020-11-30 01:02:50,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:50,114 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:02:50,114 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:02:50,122 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:02:50,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:02:50,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:02:48" (1/3) ... [2020-11-30 01:02:50,125 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d833961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:02:50, skipping insertion in model container [2020-11-30 01:02:50,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:02:50,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:48" (2/3) ... [2020-11-30 01:02:50,126 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d833961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:02:50, skipping insertion in model container [2020-11-30 01:02:50,126 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:02:50,126 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:50" (3/3) ... [2020-11-30 01:02:50,128 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-11-30 01:02:50,185 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:02:50,185 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:02:50,185 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:02:50,185 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:50,185 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:50,186 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:02:50,186 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:50,186 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:02:50,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-11-30 01:02:50,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 01:02:50,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:02:50,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:02:50,232 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:02:50,232 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:50,232 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:02:50,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-11-30 01:02:50,241 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 01:02:50,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:02:50,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:02:50,242 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:02:50,242 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:50,247 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);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(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 18#L-1true havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 105#L831true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 107#L839true main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 40#L161true assume 0 != main_~tmp~1; 114#L134true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 59#L53-1true [2020-11-30 01:02:50,247 INFO L796 eck$LassoCheckResult]: Loop: 59#L53-1true assume !false; 61#L755true assume test_~splverifierCounter~0 < 4; 115#L756true test_~tmp~9 := test_#t~nondet66;havoc test_#t~nondet66; 21#L764true assume !(0 != test_~tmp~9); 24#L764-1true test_~tmp___0~3 := test_#t~nondet67;havoc test_#t~nondet67; 75#L774true assume !(0 != test_~tmp___0~3); 78#L774-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 112#L784true assume 0 != test_~tmp___2~0; 81#L790-2true assume !(0 != ~pumpRunning~0); 69#L554true assume !(0 != ~systemActive~0); 109#L561true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 8#L888true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 71#L53true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 59#L53-1true [2020-11-30 01:02:50,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:50,253 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:02:50,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:50,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757491789] [2020-11-30 01:02:50,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:50,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:50,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:50,758 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:50,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:50,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1679775164, now seen corresponding path program 1 times [2020-11-30 01:02:50,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:50,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420162994] [2020-11-30 01:02:50,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:50,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:50,790 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:50,798 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:50,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:50,799 INFO L82 PathProgramCache]: Analyzing trace with hash 34503774, now seen corresponding path program 1 times [2020-11-30 01:02:50,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:50,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378432946] [2020-11-30 01:02:50,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:50,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378432946] [2020-11-30 01:02:50,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:50,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:02:50,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521107596] [2020-11-30 01:02:51,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:51,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:02:51,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:51,081 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 6 states. [2020-11-30 01:02:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:51,338 INFO L93 Difference]: Finished difference Result 114 states and 163 transitions. [2020-11-30 01:02:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:02:51,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 163 transitions. [2020-11-30 01:02:51,352 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-30 01:02:51,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2020-11-30 01:02:51,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2020-11-30 01:02:51,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2020-11-30 01:02:51,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2020-11-30 01:02:51,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:02:51,366 INFO L691 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 01:02:51,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2020-11-30 01:02:51,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-30 01:02:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-30 01:02:51,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-11-30 01:02:51,414 INFO L714 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 01:02:51,414 INFO L594 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 01:02:51,414 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:02:51,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2020-11-30 01:02:51,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-30 01:02:51,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:02:51,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:02:51,422 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:02:51,422 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:51,423 INFO L794 eck$LassoCheckResult]: Stem: 351#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);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(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 278#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 279#L831 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 355#L839 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 308#L161 assume 0 != main_~tmp~1; 309#L134 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 326#L53-1 [2020-11-30 01:02:51,423 INFO L796 eck$LassoCheckResult]: Loop: 326#L53-1 assume !false; 327#L755 assume test_~splverifierCounter~0 < 4; 330#L756 test_~tmp~9 := test_#t~nondet66;havoc test_#t~nondet66; 285#L764 assume !(0 != test_~tmp~9); 287#L764-1 test_~tmp___0~3 := test_#t~nondet67;havoc test_#t~nondet67; 288#L774 assume !(0 != test_~tmp___0~3); 340#L774-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 344#L784 assume 0 != test_~tmp___2~0; 349#L790-2 assume !(0 != ~pumpRunning~0); 332#L554 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 312#L612 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret45, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 313#L586-1 assume !(0 == ~pumpRunning~0); 314#L561 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 259#L888 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 260#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 326#L53-1 [2020-11-30 01:02:51,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:51,425 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:02:51,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:51,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970237296] [2020-11-30 01:02:51,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:51,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:51,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:51,586 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:51,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:51,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1996917022, now seen corresponding path program 1 times [2020-11-30 01:02:51,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:51,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366177707] [2020-11-30 01:02:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:51,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366177707] [2020-11-30 01:02:51,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:51,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:02:51,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582583240] [2020-11-30 01:02:51,619 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:02:51,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:51,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:51,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:02:51,620 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2020-11-30 01:02:51,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:51,736 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2020-11-30 01:02:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:51,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2020-11-30 01:02:51,739 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2020-11-30 01:02:51,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2020-11-30 01:02:51,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2020-11-30 01:02:51,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2020-11-30 01:02:51,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2020-11-30 01:02:51,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:02:51,743 INFO L691 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-30 01:02:51,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2020-11-30 01:02:51,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-11-30 01:02:51,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-30 01:02:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2020-11-30 01:02:51,761 INFO L714 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-30 01:02:51,761 INFO L594 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-30 01:02:51,761 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:02:51,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2020-11-30 01:02:51,764 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2020-11-30 01:02:51,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:02:51,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:02:51,767 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:02:51,767 INFO L853 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] [2020-11-30 01:02:51,767 INFO L794 eck$LassoCheckResult]: Stem: 621#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);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(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 539#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 540#L831 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 625#L839 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 569#L161 assume 0 != main_~tmp~1; 570#L134 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 589#L53-1 [2020-11-30 01:02:51,768 INFO L796 eck$LassoCheckResult]: Loop: 589#L53-1 assume !false; 590#L755 assume test_~splverifierCounter~0 < 4; 592#L756 test_~tmp~9 := test_#t~nondet66;havoc test_#t~nondet66; 545#L764 assume !(0 != test_~tmp~9); 547#L764-1 test_~tmp___0~3 := test_#t~nondet67;havoc test_#t~nondet67; 548#L774 assume !(0 != test_~tmp___0~3); 609#L774-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 614#L784 assume 0 != test_~tmp___2~0; 619#L790-2 assume !(0 != ~pumpRunning~0); 600#L554 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 573#L612 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret45, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 574#L586-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret64, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 617#L928-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 618#L933-1 isHighWaterLevel_#t~ret64 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret64;havoc isHighWaterLevel_#t~ret64; 571#L714-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 572#L714-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 552#L720-1 processEnvironment__wrappee__highWaterSensor_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret45;havoc processEnvironment__wrappee__highWaterSensor_#t~ret45; 553#L590-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 575#L561 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 520#L888 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 521#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 589#L53-1 [2020-11-30 01:02:51,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:51,768 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:02:51,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:51,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64252702] [2020-11-30 01:02:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:51,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:51,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:51,908 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:51,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:51,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1058929102, now seen corresponding path program 1 times [2020-11-30 01:02:51,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:51,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986590925] [2020-11-30 01:02:51,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:51,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:51,934 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:51,938 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:51,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1515000296, now seen corresponding path program 1 times [2020-11-30 01:02:51,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:51,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778691601] [2020-11-30 01:02:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:51,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:52,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:52,065 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:52,219 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-30 01:04:06,621 WARN L193 SmtUtils]: Spent 1.24 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:04:56,705 WARN L193 SmtUtils]: Spent 50.07 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:04:56,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:04:56 BoogieIcfgContainer [2020-11-30 01:04:56,981 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:04:56,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:04:56,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:04:56,982 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:04:56,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:50" (3/4) ... [2020-11-30 01:04:56,986 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:04:57,037 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d2ed57d-3db7-4767-9780-4266aad13deb/bin/uautomizer/witness.graphml [2020-11-30 01:04:57,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:04:57,039 INFO L168 Benchmark]: Toolchain (without parser) took 128675.24 ms. Allocated memory was 83.9 MB in the beginning and 127.9 MB in the end (delta: 44.0 MB). Free memory was 51.8 MB in the beginning and 44.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:57,040 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 83.9 MB. Free memory was 45.4 MB in the beginning and 45.3 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:57,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.82 ms. Allocated memory is still 83.9 MB. Free memory was 51.7 MB in the beginning and 51.2 MB in the end (delta: 417.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:57,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.53 ms. Allocated memory is still 83.9 MB. Free memory was 51.2 MB in the beginning and 47.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:57,042 INFO L168 Benchmark]: Boogie Preprocessor took 40.65 ms. Allocated memory is still 83.9 MB. Free memory was 47.8 MB in the beginning and 45.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:57,043 INFO L168 Benchmark]: RCFGBuilder took 1092.93 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 45.3 MB in the beginning and 72.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:57,043 INFO L168 Benchmark]: BuchiAutomizer took 126867.21 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 72.7 MB in the beginning and 47.3 MB in the end (delta: 25.3 MB). Peak memory consumption was 73.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:57,044 INFO L168 Benchmark]: Witness Printer took 55.88 ms. Allocated memory is still 127.9 MB. Free memory was 47.3 MB in the beginning and 44.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:57,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 83.9 MB. Free memory was 45.4 MB in the beginning and 45.3 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 506.82 ms. Allocated memory is still 83.9 MB. Free memory was 51.7 MB in the beginning and 51.2 MB in the end (delta: 417.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.53 ms. Allocated memory is still 83.9 MB. Free memory was 51.2 MB in the beginning and 47.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.65 ms. Allocated memory is still 83.9 MB. Free memory was 47.8 MB in the beginning and 45.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1092.93 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 45.3 MB in the beginning and 72.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 126867.21 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 72.7 MB in the beginning and 47.3 MB in the end (delta: 25.3 MB). Peak memory consumption was 73.1 MB. Max. memory is 16.1 GB. * Witness Printer took 55.88 ms. Allocated memory is still 127.9 MB. Free memory was 47.3 MB in the beginning and 44.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 126.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 126.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 316 SDtfs, 734 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 754]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16636} State at position 1 is {NULL=0, NULL=16662, NULL=0, NULL=16636, NULL=0, NULL=0, methaneLevelCritical=0, NULL=16637, NULL=16650, tmp___1=0, tmp=0, NULL=16651, retValue_acc=0, NULL=0, NULL=16654, cleanupTimeShifts=4, NULL=16658, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d541c39=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ee686d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@391fabb7=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c659589=0, head=0, pumpRunning=0, NULL=16655, NULL=16642, tmp=1, NULL=0, tmp=0, \result=1, NULL=0, NULL=16652, NULL=0, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=16653, NULL=16639, NULL=16645, head=0, NULL=0, tmp=0, NULL=16663, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=16644, NULL=16661, NULL=16641, NULL=16647, NULL=0, tmp___0=0, NULL=16638, NULL=16664, NULL=0, tmp___0=0, NULL=16646, NULL=16649, tmp=0, NULL=16648, NULL=0, NULL=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b480afb=0, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=16640, NULL=16643, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27b9dcb9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bf15d87=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20e869d3=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54bb4f8a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@426141a0=0, retValue_acc=1, NULL=16660, retValue_acc=1, tmp___2=69, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=16659, NULL=16656, NULL=16657} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L71] int cleanupTimeShifts = 4; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L547] int pumpRunning = 0; [L548] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; [L152] int retValue_acc ; [L153] int tmp ; [L835] int retValue_acc ; [L838] retValue_acc = 1 [L839] return (retValue_acc); [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 Loop: [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND FALSE !(\read(tmp)) [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L554] COND FALSE !(\read(pumpRunning)) [L561] COND TRUE \read(systemActive) [L609] int tmp ; [L612] COND FALSE !(\read(pumpRunning)) [L583] int tmp ; [L586] COND TRUE ! pumpRunning [L706] int retValue_acc ; [L707] int tmp ; [L708] int tmp___0 ; [L925] int retValue_acc ; [L928] COND TRUE waterLevel < 2 [L929] retValue_acc = 1 [L930] return (retValue_acc); [L712] tmp = isHighWaterSensorDry() [L714] COND TRUE \read(tmp) [L715] tmp___0 = 0 [L719] retValue_acc = tmp___0 [L720] return (retValue_acc); [L588] tmp = isHighWaterLevel() [L590] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...