./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/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 58b1515455259d45fb417c153e548f7f158cb0ab ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:00:00,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:00:00,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:00:00,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:00:00,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:00:00,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:00:00,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:00:00,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:00:00,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:00:00,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:00:00,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:00:00,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:00:00,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:00:00,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:00:00,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:00:00,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:00:00,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:00:00,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:00:00,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:00:00,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:00:00,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:00:00,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:00:00,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:00:00,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:00:00,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:00:00,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:00:00,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:00:00,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:00:00,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:00:00,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:00:00,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:00:00,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:00:00,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:00:00,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:00:00,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:00:00,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:00:00,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:00:00,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:00:00,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:00:00,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:00:00,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:00:00,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:00:00,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:00:00,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:00:00,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:00:00,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:00:00,268 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:00:00,268 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:00:00,268 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:00:00,269 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:00:00,269 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:00:00,269 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:00:00,270 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:00:00,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:00:00,271 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:00:00,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:00:00,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:00:00,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:00:00,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:00:00,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:00:00,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:00:00,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:00:00,273 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:00:00,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:00:00,273 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:00:00,274 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:00:00,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:00:00,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:00:00,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:00:00,275 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:00:00,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:00:00,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:00:00,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:00:00,276 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:00:00,278 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:00:00,278 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b1515455259d45fb417c153e548f7f158cb0ab [2020-11-30 01:00:00,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:00:00,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:00:00,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:00:00,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:00:00,667 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:00:00,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c [2020-11-30 01:00:00,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/data/79ca1b5b1/c32833884652486597088ff29bcf4179/FLAG30a9c5340 [2020-11-30 01:00:01,535 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:00:01,536 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c [2020-11-30 01:00:01,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/data/79ca1b5b1/c32833884652486597088ff29bcf4179/FLAG30a9c5340 [2020-11-30 01:00:01,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/data/79ca1b5b1/c32833884652486597088ff29bcf4179 [2020-11-30 01:00:01,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:00:01,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:00:01,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:00:01,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:00:01,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:00:01,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:00:01" (1/1) ... [2020-11-30 01:00:01,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32194a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:01, skipping insertion in model container [2020-11-30 01:00:01,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:00:01" (1/1) ... [2020-11-30 01:00:01,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:00:01,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:00:02,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:00:02,271 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:00:02,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:00:02,442 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:00:02,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02 WrapperNode [2020-11-30 01:00:02,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:00:02,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:00:02,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:00:02,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:00:02,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:00:02,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:00:02,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:00:02,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:00:02,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... [2020-11-30 01:00:02,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:00:02,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:00:02,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:00:02,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:00:02,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:00:02,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:00:02,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:00:02,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:00:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:00:04,121 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:00:04,123 INFO L298 CfgBuilder]: Removed 180 assume(true) statements. [2020-11-30 01:00:04,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:04 BoogieIcfgContainer [2020-11-30 01:00:04,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:00:04,128 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:00:04,128 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:00:04,132 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:00:04,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:00:04,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:00:01" (1/3) ... [2020-11-30 01:00:04,135 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eed875f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:00:04, skipping insertion in model container [2020-11-30 01:00:04,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:00:04,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:02" (2/3) ... [2020-11-30 01:00:04,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eed875f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:00:04, skipping insertion in model container [2020-11-30 01:00:04,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:00:04,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:04" (3/3) ... [2020-11-30 01:00:04,140 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product31.cil.c [2020-11-30 01:00:04,197 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:00:04,197 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:00:04,197 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:00:04,198 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:00:04,198 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:00:04,198 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:00:04,198 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:00:04,198 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:00:04,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2020-11-30 01:00:04,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 01:00:04,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:00:04,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:00:04,295 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:04,295 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:04,295 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:00:04,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states. [2020-11-30 01:00:04,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-30 01:00:04,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:00:04,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:00:04,304 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:04,305 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:04,310 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 11#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 95#L974true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 109#L982true main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 88#L523true assume 0 != main_~tmp~5; 106#L495true ~switchedOnBeforeTS~0 := 0; 63#L909true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 100#L930-1true [2020-11-30 01:00:04,311 INFO L796 eck$LassoCheckResult]: Loop: 100#L930-1true assume !false; 59#L67true assume test_~splverifierCounter~0 < 4; 118#L68true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 15#L76true assume !(0 != test_~tmp~0); 13#L76-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 68#L86true assume !(0 != test_~tmp___0~0); 67#L86-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 105#L96true assume 0 != test_~tmp___2~0; 71#L102-1true havoc __utac_acc__Specification5_spec__2_#t~ret78;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; 20#L271true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 99#L919true assume !(0 != ~pumpRunning~0); 86#L143true assume !(0 != ~systemActive~0); 32#L150true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 55#L422true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 98#L930true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 100#L930-1true [2020-11-30 01:00:04,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:04,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 01:00:04,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:04,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979111258] [2020-11-30 01:00:04,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:04,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:04,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:05,055 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:00:05,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:05,061 INFO L82 PathProgramCache]: Analyzing trace with hash -240568169, now seen corresponding path program 1 times [2020-11-30 01:00:05,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:05,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181866686] [2020-11-30 01:00:05,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:05,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:05,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:05,112 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:00:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:05,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1693457041, now seen corresponding path program 1 times [2020-11-30 01:00:05,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:05,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032573709] [2020-11-30 01:00:05,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:05,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032573709] [2020-11-30 01:00:05,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:05,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:00:05,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372119947] [2020-11-30 01:00:05,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:05,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:00:05,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:00:05,559 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 6 states. [2020-11-30 01:00:06,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:06,136 INFO L93 Difference]: Finished difference Result 277 states and 388 transitions. [2020-11-30 01:00:06,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:00:06,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 388 transitions. [2020-11-30 01:00:06,154 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 179 [2020-11-30 01:00:06,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 256 states and 367 transitions. [2020-11-30 01:00:06,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 256 [2020-11-30 01:00:06,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 256 [2020-11-30 01:00:06,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 256 states and 367 transitions. [2020-11-30 01:00:06,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:00:06,182 INFO L691 BuchiCegarLoop]: Abstraction has 256 states and 367 transitions. [2020-11-30 01:00:06,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states and 367 transitions. [2020-11-30 01:00:06,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 155. [2020-11-30 01:00:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-11-30 01:00:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 221 transitions. [2020-11-30 01:00:06,252 INFO L714 BuchiCegarLoop]: Abstraction has 155 states and 221 transitions. [2020-11-30 01:00:06,252 INFO L594 BuchiCegarLoop]: Abstraction has 155 states and 221 transitions. [2020-11-30 01:00:06,252 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:00:06,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 221 transitions. [2020-11-30 01:00:06,255 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2020-11-30 01:00:06,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:00:06,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:00:06,262 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:06,264 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:06,265 INFO L794 eck$LassoCheckResult]: Stem: 514#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 428#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 429#L974 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 515#L982 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 512#L523 assume 0 != main_~tmp~5; 513#L495 ~switchedOnBeforeTS~0 := 0; 496#L909 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 488#L930-1 [2020-11-30 01:00:06,265 INFO L796 eck$LassoCheckResult]: Loop: 488#L930-1 assume !false; 492#L67 assume test_~splverifierCounter~0 < 4; 493#L68 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 433#L76 assume !(0 != test_~tmp~0); 417#L76-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 431#L86 assume !(0 != test_~tmp___0~0); 500#L86-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 501#L96 assume 0 != test_~tmp___2~0; 504#L102-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;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; 439#L271 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 440#L919 assume !(0 != ~pumpRunning~0); 499#L143 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 510#L201 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 437#L175-1 assume !(0 != ~pumpRunning~0); 413#L150 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 460#L422 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 487#L930 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 488#L930-1 [2020-11-30 01:00:06,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:06,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 01:00:06,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:06,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408600962] [2020-11-30 01:00:06,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:06,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:06,395 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:06,417 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:00:06,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:06,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1407156791, now seen corresponding path program 1 times [2020-11-30 01:00:06,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:06,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544905340] [2020-11-30 01:00:06,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:06,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:06,453 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:06,465 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:00:06,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:06,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1765198147, now seen corresponding path program 1 times [2020-11-30 01:00:06,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:06,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531237579] [2020-11-30 01:00:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:06,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531237579] [2020-11-30 01:00:06,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:06,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:00:06,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56757753] [2020-11-30 01:00:06,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:06,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:00:06,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:00:06,731 INFO L87 Difference]: Start difference. First operand 155 states and 221 transitions. cyclomatic complexity: 69 Second operand 5 states. [2020-11-30 01:00:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:07,008 INFO L93 Difference]: Finished difference Result 448 states and 633 transitions. [2020-11-30 01:00:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:00:07,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 448 states and 633 transitions. [2020-11-30 01:00:07,016 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 210 [2020-11-30 01:00:07,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 448 states to 448 states and 633 transitions. [2020-11-30 01:00:07,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 448 [2020-11-30 01:00:07,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 448 [2020-11-30 01:00:07,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 448 states and 633 transitions. [2020-11-30 01:00:07,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:00:07,027 INFO L691 BuchiCegarLoop]: Abstraction has 448 states and 633 transitions. [2020-11-30 01:00:07,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states and 633 transitions. [2020-11-30 01:00:07,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 303. [2020-11-30 01:00:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-11-30 01:00:07,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 421 transitions. [2020-11-30 01:00:07,051 INFO L714 BuchiCegarLoop]: Abstraction has 303 states and 421 transitions. [2020-11-30 01:00:07,051 INFO L594 BuchiCegarLoop]: Abstraction has 303 states and 421 transitions. [2020-11-30 01:00:07,051 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:00:07,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 421 transitions. [2020-11-30 01:00:07,054 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 210 [2020-11-30 01:00:07,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:00:07,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:00:07,060 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:07,060 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:07,060 INFO L794 eck$LassoCheckResult]: Stem: 1146#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 1047#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 1048#L974 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1150#L982 main_#t~ret42 := valid_product_#res;main_~tmp~5 := main_#t~ret42;havoc main_#t~ret42; 1142#L523 assume 0 != main_~tmp~5; 1143#L495 ~switchedOnBeforeTS~0 := 0; 1123#L909 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1124#L930-1 [2020-11-30 01:00:07,060 INFO L796 eck$LassoCheckResult]: Loop: 1124#L930-1 assume !false; 1267#L67 assume test_~splverifierCounter~0 < 4; 1255#L68 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 1254#L76 assume !(0 != test_~tmp~0); 1253#L76-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 1252#L86 assume !(0 != test_~tmp___0~0); 1250#L86-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 1249#L96 assume 0 != test_~tmp___2~0; 1248#L102-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;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; 1294#L271 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 1292#L919 assume !(0 != ~pumpRunning~0); 1140#L143 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1141#L201 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1277#L175-1 assume !(0 != ~pumpRunning~0); 1274#L150 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 1273#L422 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1272#L930 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;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; 1271#L271-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 1270#L934 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1124#L930-1 [2020-11-30 01:00:07,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:07,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 01:00:07,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:07,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995210110] [2020-11-30 01:00:07,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:07,118 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:07,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:07,168 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:00:07,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:07,169 INFO L82 PathProgramCache]: Analyzing trace with hash 637007748, now seen corresponding path program 1 times [2020-11-30 01:00:07,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:07,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283997716] [2020-11-30 01:00:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:07,175 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:07,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:07,211 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:00:07,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:07,213 INFO L82 PathProgramCache]: Analyzing trace with hash -156676994, now seen corresponding path program 1 times [2020-11-30 01:00:07,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:07,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935352951] [2020-11-30 01:00:07,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:07,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:07,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:07,347 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:00:07,484 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-30 01:01:39,095 WARN L193 SmtUtils]: Spent 1.53 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 01:02:42,980 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 01:02:43,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:02:43 BoogieIcfgContainer [2020-11-30 01:02:43,335 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:02:43,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:02:43,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:02:43,336 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:02:43,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:04" (3/4) ... [2020-11-30 01:02:43,339 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:02:43,458 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_574555d4-1ba0-4df6-a7e1-a052ae0c1348/bin/uautomizer/witness.graphml [2020-11-30 01:02:43,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:02:43,460 INFO L168 Benchmark]: Toolchain (without parser) took 161657.00 ms. Allocated memory was 96.5 MB in the beginning and 148.9 MB in the end (delta: 52.4 MB). Free memory was 72.1 MB in the beginning and 66.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:43,461 INFO L168 Benchmark]: CDTParser took 4.84 ms. Allocated memory is still 96.5 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:43,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.77 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 63.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:43,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.67 ms. Allocated memory is still 96.5 MB. Free memory was 63.5 MB in the beginning and 60.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:43,467 INFO L168 Benchmark]: Boogie Preprocessor took 112.74 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 57.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:43,469 INFO L168 Benchmark]: RCFGBuilder took 1443.32 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 57.4 MB in the beginning and 98.2 MB in the end (delta: -40.9 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:43,470 INFO L168 Benchmark]: BuchiAutomizer took 159207.38 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 97.5 MB in the beginning and 68.1 MB in the end (delta: 29.5 MB). Peak memory consumption was 93.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:43,471 INFO L168 Benchmark]: Witness Printer took 122.76 ms. Allocated memory is still 148.9 MB. Free memory was 68.1 MB in the beginning and 66.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:43,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.84 ms. Allocated memory is still 96.5 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 639.77 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 63.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.67 ms. Allocated memory is still 96.5 MB. Free memory was 63.5 MB in the beginning and 60.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 112.74 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 57.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1443.32 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 57.4 MB in the beginning and 98.2 MB in the end (delta: -40.9 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 159207.38 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 97.5 MB in the beginning and 68.1 MB in the end (delta: 29.5 MB). Peak memory consumption was 93.2 MB. Max. memory is 16.1 GB. * Witness Printer took 122.76 ms. Allocated memory is still 148.9 MB. Free memory was 68.1 MB in the beginning and 66.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 303 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 159.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 157.9s. Construction of modules took 0.5s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 246 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 303 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 408 SDtfs, 1310 SDslu, 1154 SDs, 0 SdLazy, 135 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3669eb3c=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bf1a443=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3253f959=0, NULL=1, NULL=5946, NULL=0, retValue_acc=0, NULL=0, NULL=5952, NULL=5949, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44fcf249=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@658ce6f3=0, NULL=5966, methaneLevelCritical=0, NULL=5968, tmp=1, retValue_acc=1, NULL=0, NULL=5964, NULL=5971, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=5962, NULL=5959, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c3373eb=0, NULL=5955, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22611b0c=0, switchedOnBeforeTS=0, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70a2f6d5=0, tmp___0=0, NULL=5969, \result=1, NULL=5960, head=0, pumpRunning=0, tmp___0=0, \result=0, NULL=5953, NULL=5947, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c3aa416=0, tmp=1, NULL=0, NULL=5963, NULL=5945, NULL=5956, NULL=0, NULL=0, NULL=5951, NULL=0, NULL=0, NULL=5967, tmp___2=59, NULL=0, retValue_acc=1, NULL=5972, NULL=5958, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fdc618d=0, NULL=5950, NULL=5961, NULL=5954, tmp=0, head=0, retValue_acc=0, tmp=0, NULL=0, NULL=0, NULL=5970, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5957, NULL=0, NULL=5965, NULL=5948} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L347] int waterLevel = 1; [L348] int methaneLevelCritical = 0; [L436] int cleanupTimeShifts = 4; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L903] int switchedOnBeforeTS ; [L514] int retValue_acc ; [L515] int tmp ; [L978] int retValue_acc ; [L981] retValue_acc = 1 [L982] return (retValue_acc); [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) [L908] switchedOnBeforeTS = 0 [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L267] int retValue_acc ; [L270] retValue_acc = pumpRunning [L271] return (retValue_acc); [L917] switchedOnBeforeTS = isPumpRunning() [L143] COND FALSE !(\read(pumpRunning)) [L150] COND TRUE \read(systemActive) [L198] int tmp ; [L201] COND FALSE !(\read(pumpRunning)) [L172] int tmp ; [L175] COND FALSE !(\read(pumpRunning)) [L923] int tmp ; [L924] int tmp___0 ; [L418] int retValue_acc ; [L421] retValue_acc = waterLevel [L422] return (retValue_acc); [L928] tmp = getWaterLevel() [L930] COND TRUE tmp != 2 [L267] int retValue_acc ; [L270] retValue_acc = pumpRunning [L271] return (retValue_acc); [L932] tmp___0 = isPumpRunning() [L934] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...