./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/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 5f95caf83b1aeb224c615c1dcd2faa7bff4a2a72 ................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-07 10:08:48,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:08:48,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:08:48,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:08:48,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:08:48,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:08:48,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:08:48,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:08:48,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:08:48,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:08:48,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:08:48,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:08:48,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:08:48,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:08:48,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:08:48,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:08:48,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:08:48,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:08:48,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:08:48,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:08:48,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:08:48,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:08:48,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:08:48,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:08:48,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:08:48,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:08:48,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:08:48,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:08:48,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:08:48,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:08:48,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:08:48,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:08:48,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:08:48,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:08:48,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:08:48,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:08:48,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:08:48,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:08:48,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:08:48,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:08:48,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:08:48,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 10:08:48,092 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:08:48,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:08:48,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:08:48,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:08:48,093 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:08:48,093 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:08:48,093 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:08:48,093 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:08:48,093 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:08:48,093 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:08:48,093 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:08:48,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:08:48,094 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:08:48,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:08:48,095 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:08:48,095 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:08:48,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:08:48,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:08:48,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:08:48,095 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:08:48,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:08:48,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:08:48,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:08:48,096 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:08:48,096 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:08:48,097 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_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/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 -> 5f95caf83b1aeb224c615c1dcd2faa7bff4a2a72 [2019-12-07 10:08:48,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:08:48,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:08:48,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:08:48,206 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:08:48,207 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:08:48,207 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c [2019-12-07 10:08:48,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/data/7e507c58d/a3e85bbd67ef40e2863f9205325e12c8/FLAGe31a6e1c6 [2019-12-07 10:08:48,614 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:08:48,614 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c [2019-12-07 10:08:48,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/data/7e507c58d/a3e85bbd67ef40e2863f9205325e12c8/FLAGe31a6e1c6 [2019-12-07 10:08:48,633 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/data/7e507c58d/a3e85bbd67ef40e2863f9205325e12c8 [2019-12-07 10:08:48,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:08:48,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:08:48,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:08:48,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:08:48,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:08:48,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:48,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374d8a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48, skipping insertion in model container [2019-12-07 10:08:48,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:48,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:08:48,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:08:48,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:08:48,883 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:08:48,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:08:48,975 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:08:48,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48 WrapperNode [2019-12-07 10:08:48,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:08:48,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:08:48,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:08:48,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:08:48,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:48,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:49,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:08:49,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:08:49,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:08:49,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:08:49,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:49,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:49,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:49,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:49,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:49,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:49,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... [2019-12-07 10:08:49,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:08:49,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:08:49,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:08:49,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:08:49,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/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 [2019-12-07 10:08:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:08:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 10:08:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:08:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:08:49,512 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:08:49,512 INFO L287 CfgBuilder]: Removed 172 assume(true) statements. [2019-12-07 10:08:49,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:49 BoogieIcfgContainer [2019-12-07 10:08:49,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:08:49,514 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:08:49,514 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:08:49,517 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:08:49,517 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:49,517 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:08:48" (1/3) ... [2019-12-07 10:08:49,518 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4076f9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:08:49, skipping insertion in model container [2019-12-07 10:08:49,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:49,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:48" (2/3) ... [2019-12-07 10:08:49,519 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4076f9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:08:49, skipping insertion in model container [2019-12-07 10:08:49,519 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:49,519 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:49" (3/3) ... [2019-12-07 10:08:49,520 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product30.cil.c [2019-12-07 10:08:49,556 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:08:49,556 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:08:49,556 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:08:49,556 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:08:49,556 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:08:49,556 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:08:49,556 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:08:49,556 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:08:49,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2019-12-07 10:08:49,587 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-12-07 10:08:49,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:49,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:49,592 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:49,592 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:49,592 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:08:49,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2019-12-07 10:08:49,597 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-12-07 10:08:49,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:49,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:49,598 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:49,598 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:49,601 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 94#L404true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 109#L412true main_#t~ret64 := valid_product_#res;main_~tmp~9 := main_#t~ret64;havoc main_#t~ret64; 89#L875true assume 0 != main_~tmp~9; 42#L851true ~switchedOnBeforeTS~0 := 0; 68#L336true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 98#L357-1true [2019-12-07 10:08:49,602 INFO L796 eck$LassoCheckResult]: Loop: 98#L357-1true assume !false; 87#L272true assume test_~splverifierCounter~0 < 4; 34#L273true test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 71#L281true assume !(0 != test_~tmp~4); 67#L281-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 111#L291true assume !(0 != test_~tmp___0~1); 110#L291-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 28#L301true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 27#L309-2true havoc __utac_acc__Specification5_spec__2_#t~ret25;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 62#L190true __utac_acc__Specification5_spec__2_#t~ret25 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25;havoc __utac_acc__Specification5_spec__2_#t~ret25; 113#L346true assume !(0 != ~pumpRunning~0); 8#L62true assume !(0 != ~systemActive~0); 52#L69true havoc __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 29#L964true __utac_acc__Specification5_spec__3_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret26;havoc __utac_acc__Specification5_spec__3_#t~ret26; 112#L357true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 98#L357-1true [2019-12-07 10:08:49,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:49,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 10:08:49,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:49,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766056707] [2019-12-07 10:08:49,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:49,835 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:49,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:49,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1012669325, now seen corresponding path program 1 times [2019-12-07 10:08:49,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:49,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629714572] [2019-12-07 10:08:49,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:49,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:49,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629714572] [2019-12-07 10:08:49,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:49,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:08:49,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289426345] [2019-12-07 10:08:49,878 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 10:08:49,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:49,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:08:49,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:08:49,890 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2019-12-07 10:08:49,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:49,921 INFO L93 Difference]: Finished difference Result 111 states and 155 transitions. [2019-12-07 10:08:49,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:08:49,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 155 transitions. [2019-12-07 10:08:49,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-12-07 10:08:49,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2019-12-07 10:08:49,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2019-12-07 10:08:49,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2019-12-07 10:08:49,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2019-12-07 10:08:49,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:08:49,932 INFO L688 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-12-07 10:08:49,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2019-12-07 10:08:49,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-12-07 10:08:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-12-07 10:08:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2019-12-07 10:08:49,955 INFO L711 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-12-07 10:08:49,955 INFO L591 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-12-07 10:08:49,955 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:08:49,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2019-12-07 10:08:49,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-12-07 10:08:49,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:49,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:49,957 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:49,957 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:49,957 INFO L794 eck$LassoCheckResult]: Stem: 324#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 243#L-1 havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 244#L404 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 332#L412 main_#t~ret64 := valid_product_#res;main_~tmp~9 := main_#t~ret64;havoc main_#t~ret64; 331#L875 assume 0 != main_~tmp~9; 292#L851 ~switchedOnBeforeTS~0 := 0; 293#L336 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 273#L357-1 [2019-12-07 10:08:49,957 INFO L796 eck$LassoCheckResult]: Loop: 273#L357-1 assume !false; 327#L272 assume test_~splverifierCounter~0 < 4; 285#L273 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 286#L281 assume !(0 != test_~tmp~4); 267#L281-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 319#L291 assume !(0 != test_~tmp___0~1); 330#L291-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 276#L301 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 274#L309-2 havoc __utac_acc__Specification5_spec__2_#t~ret25;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 275#L190 __utac_acc__Specification5_spec__2_#t~ret25 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25;havoc __utac_acc__Specification5_spec__2_#t~ret25; 315#L346 assume !(0 != ~pumpRunning~0); 241#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 242#L120 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret0, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 261#L94-1 assume !(0 != ~pumpRunning~0); 256#L69 havoc __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 278#L964 __utac_acc__Specification5_spec__3_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret26;havoc __utac_acc__Specification5_spec__3_#t~ret26; 279#L357 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 273#L357-1 [2019-12-07 10:08:49,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:49,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 10:08:49,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:49,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943182236] [2019-12-07 10:08:49,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,030 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:50,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:50,031 INFO L82 PathProgramCache]: Analyzing trace with hash 363233727, now seen corresponding path program 1 times [2019-12-07 10:08:50,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:50,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832245144] [2019-12-07 10:08:50,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,043 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:50,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:50,043 INFO L82 PathProgramCache]: Analyzing trace with hash -759378631, now seen corresponding path program 1 times [2019-12-07 10:08:50,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:50,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459256415] [2019-12-07 10:08:50,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:50,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459256415] [2019-12-07 10:08:50,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:50,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:08:50,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630105655] [2019-12-07 10:08:50,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:50,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:08:50,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:08:50,195 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-12-07 10:08:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:50,344 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2019-12-07 10:08:50,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:08:50,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2019-12-07 10:08:50,350 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2019-12-07 10:08:50,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2019-12-07 10:08:50,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2019-12-07 10:08:50,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2019-12-07 10:08:50,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2019-12-07 10:08:50,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:08:50,359 INFO L688 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2019-12-07 10:08:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2019-12-07 10:08:50,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2019-12-07 10:08:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-12-07 10:08:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2019-12-07 10:08:50,373 INFO L711 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2019-12-07 10:08:50,374 INFO L591 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2019-12-07 10:08:50,374 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:08:50,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2019-12-07 10:08:50,376 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2019-12-07 10:08:50,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:50,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:50,377 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:50,377 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] [2019-12-07 10:08:50,377 INFO L794 eck$LassoCheckResult]: Stem: 778#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 685#L-1 havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 686#L404 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 788#L412 main_#t~ret64 := valid_product_#res;main_~tmp~9 := main_#t~ret64;havoc main_#t~ret64; 785#L875 assume 0 != main_~tmp~9; 734#L851 ~switchedOnBeforeTS~0 := 0; 735#L336 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 714#L357-1 [2019-12-07 10:08:50,378 INFO L796 eck$LassoCheckResult]: Loop: 714#L357-1 assume !false; 781#L272 assume test_~splverifierCounter~0 < 4; 729#L273 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 730#L281 assume !(0 != test_~tmp~4); 770#L281-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 771#L291 assume !(0 != test_~tmp___0~1); 784#L291-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 717#L301 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 715#L309-2 havoc __utac_acc__Specification5_spec__2_#t~ret25;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 716#L190 __utac_acc__Specification5_spec__2_#t~ret25 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25;havoc __utac_acc__Specification5_spec__2_#t~ret25; 766#L346 assume !(0 != ~pumpRunning~0); 681#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 682#L120 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret0, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 702#L94-1 assume !(0 != ~pumpRunning~0); 696#L69 havoc __utac_acc__Specification5_spec__3_#t~ret26, __utac_acc__Specification5_spec__3_#t~ret27, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 719#L964 __utac_acc__Specification5_spec__3_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret26;havoc __utac_acc__Specification5_spec__3_#t~ret26; 720#L357 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 800#L190-1 __utac_acc__Specification5_spec__3_#t~ret27 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret27;havoc __utac_acc__Specification5_spec__3_#t~ret27; 733#L361 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 714#L357-1 [2019-12-07 10:08:50,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:50,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 10:08:50,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:50,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920906479] [2019-12-07 10:08:50,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,436 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:50,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:50,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1175247994, now seen corresponding path program 1 times [2019-12-07 10:08:50,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:50,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698755314] [2019-12-07 10:08:50,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,445 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:50,446 INFO L82 PathProgramCache]: Analyzing trace with hash 381563252, now seen corresponding path program 1 times [2019-12-07 10:08:50,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:50,446 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776355590] [2019-12-07 10:08:50,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:50,494 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:08,396 WARN L192 SmtUtils]: Spent 17.79 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 10:09:20,173 WARN L192 SmtUtils]: Spent 11.77 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 10:09:20,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:09:20 BoogieIcfgContainer [2019-12-07 10:09:20,222 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:09:20,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:09:20,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:09:20,222 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:09:20,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:49" (3/4) ... [2019-12-07 10:09:20,224 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 10:09:20,260 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e3cecddb-ccd6-4df8-b39c-a5c202a039cc/bin/uautomizer/witness.graphml [2019-12-07 10:09:20,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:09:20,262 INFO L168 Benchmark]: Toolchain (without parser) took 31626.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 936.7 MB in the beginning and 1.0 GB in the end (delta: -77.3 MB). Peak memory consumption was 94.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:09:20,262 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 954.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:09:20,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:09:20,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:09:20,263 INFO L168 Benchmark]: Boogie Preprocessor took 35.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:09:20,263 INFO L168 Benchmark]: RCFGBuilder took 445.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:09:20,264 INFO L168 Benchmark]: BuchiAutomizer took 30707.99 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 230.8 kB). Peak memory consumption was 227.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:09:20,264 INFO L168 Benchmark]: Witness Printer took 38.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:09:20,265 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 954.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 445.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 30707.99 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 230.8 kB). Peak memory consumption was 227.6 MB. Max. memory is 11.5 GB. * Witness Printer took 38.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 30.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 30.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 393 SDtfs, 695 SDslu, 468 SDs, 0 SdLazy, 100 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 271]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3506} State at position 1 is {NULL=4790, NULL=0, NULL=0, retValue_acc=1, NULL=3506, NULL=16666, NULL=0, NULL=0, retValue_acc=0, NULL=10961, NULL=4788, NULL=16678, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2191c61=0, tmp=0, tmp=1, NULL=0, NULL=0, NULL=16667, tmp___1=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=16674, \result=0, NULL=4791, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=16679, NULL=0, NULL=9123, NULL=0, NULL=0, NULL=16670, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f70c79d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31c50794=0, tmp___0=0, NULL=16673, NULL=16672, \result=0, NULL=16676, NULL=10960, NULL=0, NULL=16669, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b225dc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2305b216=52, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d1c2eda=0, NULL=4793, retValue_acc=1, NULL=16668, NULL=0, NULL=0, NULL=4789, tmp___2=52, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=4787, NULL=16675, NULL=16671, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@572f3e99=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@147ccf73=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5955ddee=0, retValue_acc=0, tmp=0, NULL=4792, tmp=1, NULL=0, NULL=0, NULL=16665, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fcf0f27=0, NULL=16677} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L330] int switchedOnBeforeTS ; [L586] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L792] int cleanupTimeShifts = 4; [L889] int waterLevel = 1; [L890] int methaneLevelCritical = 0; [L866] int retValue_acc ; [L867] int tmp ; [L408] int retValue_acc ; [L411] retValue_acc = 1 [L412] return (retValue_acc); [L873] tmp = valid_product() [L875] COND TRUE \read(tmp) [L335] switchedOnBeforeTS = 0 [L262] int splverifierCounter ; [L263] int tmp ; [L264] int tmp___0 ; [L265] int tmp___1 ; [L266] int tmp___2 ; [L269] splverifierCounter = 0 Loop: [L271] COND TRUE 1 [L273] COND TRUE splverifierCounter < 4 [L279] tmp = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp)) [L289] tmp___0 = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp___0)) [L299] tmp___2 = __VERIFIER_nondet_int() [L301] COND TRUE \read(tmp___2) [L253] systemActive = 1 [L186] int retValue_acc ; [L189] retValue_acc = pumpRunning [L190] return (retValue_acc); [L344] switchedOnBeforeTS = isPumpRunning() [L62] COND FALSE !(\read(pumpRunning)) [L69] COND TRUE \read(systemActive) [L117] int tmp ; [L120] COND FALSE !(\read(pumpRunning)) [L91] int tmp ; [L94] COND FALSE !(\read(pumpRunning)) [L350] int tmp ; [L351] int tmp___0 ; [L960] int retValue_acc ; [L963] retValue_acc = waterLevel [L964] return (retValue_acc); [L355] tmp = getWaterLevel() [L357] COND TRUE tmp != 2 [L186] int retValue_acc ; [L189] retValue_acc = pumpRunning [L190] return (retValue_acc); [L359] tmp___0 = isPumpRunning() [L361] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...