./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.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_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/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 9fc6dbbcfa33ba532c22e3e2a2682304ea7cf29d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:05:44,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:05:44,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:05:44,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:05:44,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:05:44,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:05:44,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:05:44,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:05:44,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:05:44,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:05:44,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:05:44,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:05:44,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:05:44,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:05:44,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:05:44,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:05:44,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:05:44,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:05:44,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:05:44,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:05:44,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:05:44,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:05:44,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:05:44,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:05:44,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:05:44,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:05:44,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:05:44,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:05:44,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:05:44,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:05:44,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:05:44,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:05:44,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:05:44,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:05:44,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:05:44,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:05:44,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:05:44,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:05:44,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:05:44,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:05:44,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:05:44,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 00:05:44,966 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:05:44,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:05:44,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:05:44,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:05:44,967 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:05:44,967 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 00:05:44,967 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 00:05:44,968 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 00:05:44,968 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 00:05:44,968 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 00:05:44,968 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 00:05:44,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:05:44,968 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:05:44,969 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:05:44,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:05:44,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:05:44,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:05:44,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 00:05:44,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 00:05:44,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 00:05:44,970 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:05:44,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:05:44,970 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 00:05:44,970 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:05:44,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 00:05:44,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:05:44,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:05:44,971 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 00:05:44,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:05:44,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:05:44,972 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 00:05:44,972 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 00:05:44,972 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_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/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 -> 9fc6dbbcfa33ba532c22e3e2a2682304ea7cf29d [2019-11-20 00:05:45,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:05:45,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:05:45,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:05:45,167 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:05:45,167 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:05:45,168 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2019-11-20 00:05:45,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/data/9189b1f48/4e4df985a7e34393930eec2704e1db0a/FLAG722ed9bb0 [2019-11-20 00:05:45,644 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:05:45,649 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2019-11-20 00:05:45,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/data/9189b1f48/4e4df985a7e34393930eec2704e1db0a/FLAG722ed9bb0 [2019-11-20 00:05:45,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/data/9189b1f48/4e4df985a7e34393930eec2704e1db0a [2019-11-20 00:05:45,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:05:45,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:05:45,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:05:45,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:05:45,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:05:45,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:05:45" (1/1) ... [2019-11-20 00:05:45,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb86579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:45, skipping insertion in model container [2019-11-20 00:05:45,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:05:45" (1/1) ... [2019-11-20 00:05:45,694 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:05:45,736 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:05:46,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:05:46,141 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:05:46,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:05:46,274 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:05:46,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46 WrapperNode [2019-11-20 00:05:46,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:05:46,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:05:46,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:05:46,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:05:46,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:05:46,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:05:46,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:05:46,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:05:46,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... [2019-11-20 00:05:46,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:05:46,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:05:46,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:05:46,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:05:46,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/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 00:05:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:05:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 00:05:46,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:05:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:05:47,309 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:05:47,309 INFO L285 CfgBuilder]: Removed 176 assume(true) statements. [2019-11-20 00:05:47,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:47 BoogieIcfgContainer [2019-11-20 00:05:47,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:05:47,311 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 00:05:47,311 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 00:05:47,317 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 00:05:47,318 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:05:47,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:05:45" (1/3) ... [2019-11-20 00:05:47,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33d4126c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:05:47, skipping insertion in model container [2019-11-20 00:05:47,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:05:47,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:46" (2/3) ... [2019-11-20 00:05:47,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33d4126c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:05:47, skipping insertion in model container [2019-11-20 00:05:47,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:05:47,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:47" (3/3) ... [2019-11-20 00:05:47,321 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2019-11-20 00:05:47,370 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 00:05:47,371 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 00:05:47,371 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 00:05:47,371 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:05:47,371 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:05:47,372 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 00:05:47,372 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:05:47,372 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 00:05:47,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2019-11-20 00:05:47,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-11-20 00:05:47,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:05:47,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:05:47,416 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:47,416 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:47,417 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 00:05:47,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2019-11-20 00:05:47,423 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2019-11-20 00:05:47,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:05:47,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:05:47,424 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:47,424 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:47,429 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 9#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 16#L998true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 21#L1006true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 86#L498true assume 0 != main_~tmp~3; 42#L469true ~switchedOnBeforeTS~0 := 0; 75#L529true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 112#L550-1true [2019-11-20 00:05:47,429 INFO L796 eck$LassoCheckResult]: Loop: 112#L550-1true assume !false; 122#L693true assume test_~splverifierCounter~0 < 4; 80#L694true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 81#L702true assume !(0 != test_~tmp~5); 82#L702-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 125#L712true assume !(0 != test_~tmp___0~1); 126#L712-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 51#L722true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 62#L730-1true havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 28#L874true __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 109#L539true assume !(0 != ~pumpRunning~0); 77#L763true assume !(0 != ~systemActive~0); 118#L770true havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 96#L652true __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 108#L550true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 112#L550-1true [2019-11-20 00:05:47,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:47,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-20 00:05:47,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:47,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371557070] [2019-11-20 00:05:47,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:47,780 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:05:47,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:47,781 INFO L82 PathProgramCache]: Analyzing trace with hash 677042294, now seen corresponding path program 1 times [2019-11-20 00:05:47,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:47,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674594497] [2019-11-20 00:05:47,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:05:47,829 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 00:05:47,830 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674594497] [2019-11-20 00:05:47,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:05:47,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:05:47,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682979707] [2019-11-20 00:05:47,835 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 00:05:47,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:05:47,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:05:47,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:05:47,847 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2019-11-20 00:05:47,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:05:47,920 INFO L93 Difference]: Finished difference Result 243 states and 353 transitions. [2019-11-20 00:05:47,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:05:47,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 353 transitions. [2019-11-20 00:05:47,936 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2019-11-20 00:05:47,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 229 states and 338 transitions. [2019-11-20 00:05:47,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 229 [2019-11-20 00:05:47,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 229 [2019-11-20 00:05:47,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 229 states and 338 transitions. [2019-11-20 00:05:47,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:05:47,950 INFO L688 BuchiCegarLoop]: Abstraction has 229 states and 338 transitions. [2019-11-20 00:05:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states and 338 transitions. [2019-11-20 00:05:47,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2019-11-20 00:05:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-11-20 00:05:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 335 transitions. [2019-11-20 00:05:47,984 INFO L711 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2019-11-20 00:05:47,984 INFO L591 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2019-11-20 00:05:47,984 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 00:05:47,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states and 335 transitions. [2019-11-20 00:05:47,987 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2019-11-20 00:05:47,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:05:47,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:05:47,988 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:47,989 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:47,989 INFO L794 eck$LassoCheckResult]: Stem: 479#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 389#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 390#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 403#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 409#L498 assume 0 != main_~tmp~3; 433#L469 ~switchedOnBeforeTS~0 := 0; 434#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 472#L550-1 [2019-11-20 00:05:47,989 INFO L796 eck$LassoCheckResult]: Loop: 472#L550-1 assume !false; 548#L693 assume test_~splverifierCounter~0 < 4; 546#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 544#L702 assume !(0 != test_~tmp~5); 541#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 540#L712 assume !(0 != test_~tmp___0~1); 530#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 528#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 450#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 417#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 418#L539 assume !(0 != ~pumpRunning~0); 473#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 474#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 560#L795-1 assume !(0 == ~pumpRunning~0); 555#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 554#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 552#L550 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 472#L550-1 [2019-11-20 00:05:47,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:47,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-20 00:05:47,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:47,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935677491] [2019-11-20 00:05:47,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,087 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:05:48,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:48,088 INFO L82 PathProgramCache]: Analyzing trace with hash -543108204, now seen corresponding path program 1 times [2019-11-20 00:05:48,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:48,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284368405] [2019-11-20 00:05:48,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:05:48,101 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 00:05:48,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284368405] [2019-11-20 00:05:48,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:05:48,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:05:48,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54012394] [2019-11-20 00:05:48,103 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 00:05:48,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:05:48,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:05:48,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:05:48,103 INFO L87 Difference]: Start difference. First operand 227 states and 335 transitions. cyclomatic complexity: 111 Second operand 3 states. [2019-11-20 00:05:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:05:48,240 INFO L93 Difference]: Finished difference Result 326 states and 457 transitions. [2019-11-20 00:05:48,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:05:48,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 457 transitions. [2019-11-20 00:05:48,245 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2019-11-20 00:05:48,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 326 states and 457 transitions. [2019-11-20 00:05:48,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2019-11-20 00:05:48,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2019-11-20 00:05:48,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 457 transitions. [2019-11-20 00:05:48,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:05:48,261 INFO L688 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2019-11-20 00:05:48,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 457 transitions. [2019-11-20 00:05:48,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2019-11-20 00:05:48,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-11-20 00:05:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 457 transitions. [2019-11-20 00:05:48,296 INFO L711 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2019-11-20 00:05:48,296 INFO L591 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2019-11-20 00:05:48,296 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 00:05:48,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 457 transitions. [2019-11-20 00:05:48,299 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2019-11-20 00:05:48,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:05:48,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:05:48,300 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:48,300 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 00:05:48,300 INFO L794 eck$LassoCheckResult]: Stem: 1043#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 948#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 949#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 962#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 968#L498 assume 0 != main_~tmp~3; 993#L469 ~switchedOnBeforeTS~0 := 0; 994#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 945#L550-1 [2019-11-20 00:05:48,300 INFO L796 eck$LassoCheckResult]: Loop: 945#L550-1 assume !false; 1073#L693 assume test_~splverifierCounter~0 < 4; 1040#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 1041#L702 assume !(0 != test_~tmp~5); 1036#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 1042#L712 assume !(0 != test_~tmp___0~1); 979#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 1008#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1010#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1150#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 1070#L539 assume !(0 != ~pumpRunning~0); 1037#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1033#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1034#L795-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1066#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 938#L665-1 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 939#L923-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 992#L923-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 974#L929-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 975#L799-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 999#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1058#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 1059#L550 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 945#L550-1 [2019-11-20 00:05:48,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:48,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-20 00:05:48,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:48,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824220256] [2019-11-20 00:05:48,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,382 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:05:48,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:48,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1971117568, now seen corresponding path program 1 times [2019-11-20 00:05:48,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:48,383 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262126079] [2019-11-20 00:05:48,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:05:48,413 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 00:05:48,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262126079] [2019-11-20 00:05:48,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:05:48,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 00:05:48,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573953060] [2019-11-20 00:05:48,414 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 00:05:48,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:05:48,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 00:05:48,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:05:48,415 INFO L87 Difference]: Start difference. First operand 326 states and 457 transitions. cyclomatic complexity: 134 Second operand 5 states. [2019-11-20 00:05:48,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:05:48,651 INFO L93 Difference]: Finished difference Result 902 states and 1237 transitions. [2019-11-20 00:05:48,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:05:48,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 902 states and 1237 transitions. [2019-11-20 00:05:48,661 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 599 [2019-11-20 00:05:48,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 902 states to 902 states and 1237 transitions. [2019-11-20 00:05:48,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 902 [2019-11-20 00:05:48,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 902 [2019-11-20 00:05:48,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 902 states and 1237 transitions. [2019-11-20 00:05:48,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:05:48,675 INFO L688 BuchiCegarLoop]: Abstraction has 902 states and 1237 transitions. [2019-11-20 00:05:48,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states and 1237 transitions. [2019-11-20 00:05:48,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 645. [2019-11-20 00:05:48,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2019-11-20 00:05:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 879 transitions. [2019-11-20 00:05:48,705 INFO L711 BuchiCegarLoop]: Abstraction has 645 states and 879 transitions. [2019-11-20 00:05:48,705 INFO L591 BuchiCegarLoop]: Abstraction has 645 states and 879 transitions. [2019-11-20 00:05:48,705 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 00:05:48,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 645 states and 879 transitions. [2019-11-20 00:05:48,710 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 462 [2019-11-20 00:05:48,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:05:48,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:05:48,713 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:48,713 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:05:48,714 INFO L794 eck$LassoCheckResult]: Stem: 2288#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 2192#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2193#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 2206#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 2212#L498 assume 0 != main_~tmp~3; 2237#L469 ~switchedOnBeforeTS~0 := 0; 2238#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2189#L550-1 [2019-11-20 00:05:48,715 INFO L796 eck$LassoCheckResult]: Loop: 2189#L550-1 assume !false; 2312#L693 assume test_~splverifierCounter~0 < 4; 2284#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 2285#L702 assume !(0 != test_~tmp~5); 2286#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 2287#L712 assume !(0 != test_~tmp___0~1); 2223#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 2252#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2254#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 2220#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 2221#L539 assume !(0 != ~pumpRunning~0); 2280#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2276#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2277#L795-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2308#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2182#L665-1 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 2183#L923-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 2236#L923-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 2218#L929-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 2219#L799-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 2243#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 2299#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 2300#L550 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 2194#L874-1 __utac_acc__Specification5_spec__3_#t~ret38 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 2195#L554 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 2189#L550-1 [2019-11-20 00:05:48,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:48,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-20 00:05:48,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:48,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482712911] [2019-11-20 00:05:48,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,829 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:05:48,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:48,829 INFO L82 PathProgramCache]: Analyzing trace with hash -163417157, now seen corresponding path program 1 times [2019-11-20 00:05:48,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:48,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914684688] [2019-11-20 00:05:48,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,848 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:05:48,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:48,849 INFO L82 PathProgramCache]: Analyzing trace with hash -226843339, now seen corresponding path program 1 times [2019-11-20 00:05:48,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:48,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329088304] [2019-11-20 00:05:48,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:05:48,966 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:05:49,192 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-20 00:06:17,075 WARN L191 SmtUtils]: Spent 27.78 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-20 00:06:30,307 WARN L191 SmtUtils]: Spent 13.22 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-20 00:06:30,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:06:30 BoogieIcfgContainer [2019-11-20 00:06:30,375 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 00:06:30,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:06:30,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:06:30,376 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:06:30,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:47" (3/4) ... [2019-11-20 00:06:30,379 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 00:06:30,431 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_777f10f9-a25a-44c6-a19b-0a4a4c1d6aa2/bin/uautomizer/witness.graphml [2019-11-20 00:06:30,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:06:30,432 INFO L168 Benchmark]: Toolchain (without parser) took 44752.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 943.4 MB in the beginning and 932.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 198.2 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:30,433 INFO L168 Benchmark]: CDTParser took 0.18 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 00:06:30,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:30,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.07 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 00:06:30,434 INFO L168 Benchmark]: Boogie Preprocessor took 80.13 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 00:06:30,435 INFO L168 Benchmark]: RCFGBuilder took 836.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:30,435 INFO L168 Benchmark]: BuchiAutomizer took 43063.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.0 GB in the beginning and 942.0 MB in the end (delta: 100.5 MB). Peak memory consumption was 228.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:30,436 INFO L168 Benchmark]: Witness Printer took 55.78 ms. Allocated memory is still 1.2 GB. Free memory was 942.0 MB in the beginning and 932.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:30,438 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 594.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 118.07 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 80.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 836.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43063.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.0 GB in the beginning and 942.0 MB in the end (delta: 100.5 MB). Peak memory consumption was 228.0 MB. Max. memory is 11.5 GB. * Witness Printer took 55.78 ms. Allocated memory is still 1.2 GB. Free memory was 942.0 MB in the beginning and 932.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5 locations. The remainder module has 645 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 42.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 259 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 645 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 613 SDtfs, 861 SDslu, 835 SDs, 0 SdLazy, 145 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 692]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6732} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=6732, NULL=15933, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@514b1bed=0, NULL=7908, NULL=0, NULL=0, NULL=7916, NULL=0, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@655e54ff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d98d900=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ae139a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63ecf27d=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14201174=0, tmp___0=0, NULL=0, NULL=0, tmp=0, tmp=1, NULL=0, tmp___1=0, NULL=7914, NULL=7909, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7725f080=0, NULL=7911, NULL=15931, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7411d886=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=7919, NULL=6733, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=7915, \result=1, NULL=0, NULL=0, \result=0, NULL=7918, NULL=0, tmp___0=0, \result=1, NULL=6736, head=0, pumpRunning=0, NULL=15934, \result=0, retValue_acc=1, NULL=7913, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@505dfc0c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@540b6144=0, \result=1, NULL=15932, NULL=15930, NULL=15935, NULL=6739, NULL=0, retValue_acc=0, tmp=1, tmp___2=53, NULL=7910, tmp___0=0, retValue_acc=1, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e003473=0, NULL=7912, head=0, NULL=0, NULL=6737, NULL=6735, NULL=0, NULL=6734, tmp=0, NULL=0, NULL=0, NULL=7917, retValue_acc=0, NULL=0, NULL=6738} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L523] int switchedOnBeforeTS ; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L753] int pumpRunning = 0; [L754] int systemActive = 1; [L489] int retValue_acc ; [L490] int tmp ; [L1002] int retValue_acc ; [L1005] retValue_acc = 1 [L1006] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L528] switchedOnBeforeTS = 0 [L683] int splverifierCounter ; [L684] int tmp ; [L685] int tmp___0 ; [L686] int tmp___1 ; [L687] int tmp___2 ; [L690] splverifierCounter = 0 Loop: [L692] COND TRUE 1 [L694] COND TRUE splverifierCounter < 4 [L700] tmp = __VERIFIER_nondet_int() [L702] COND FALSE !(\read(tmp)) [L710] tmp___0 = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp___0)) [L720] tmp___2 = __VERIFIER_nondet_int() [L722] COND TRUE \read(tmp___2) [L971] systemActive = 1 [L870] int retValue_acc ; [L873] retValue_acc = pumpRunning [L874] return (retValue_acc); [L537] switchedOnBeforeTS = isPumpRunning() [L763] COND FALSE !(\read(pumpRunning)) [L770] COND TRUE \read(systemActive) [L818] int tmp ; [L821] COND FALSE !(\read(pumpRunning)) [L792] int tmp ; [L795] COND TRUE ! pumpRunning [L915] int retValue_acc ; [L916] int tmp ; [L917] int tmp___0 ; [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L921] tmp = isHighWaterSensorDry() [L923] COND TRUE \read(tmp) [L924] tmp___0 = 0 [L928] retValue_acc = tmp___0 [L929] return (retValue_acc); [L797] tmp = isHighWaterLevel() [L799] COND FALSE !(\read(tmp)) [L543] int tmp ; [L544] int tmp___0 ; [L648] int retValue_acc ; [L651] retValue_acc = waterLevel [L652] return (retValue_acc); [L548] tmp = getWaterLevel() [L550] COND TRUE tmp != 2 [L870] int retValue_acc ; [L873] retValue_acc = pumpRunning [L874] return (retValue_acc); [L552] tmp___0 = isPumpRunning() [L554] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...