./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.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_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/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 2e519ed25ecd119d6faecde1d069a0dace03b3e5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 19:09:42,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:09:42,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:09:42,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:09:42,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:09:42,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:09:42,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:09:42,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:09:42,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:09:42,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:09:42,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:09:42,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:09:42,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:09:42,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:09:42,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:09:42,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:09:42,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:09:42,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:09:42,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:09:42,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:09:42,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:09:42,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:09:42,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:09:42,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:09:42,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:09:42,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:09:42,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:09:42,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:09:42,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:09:42,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:09:42,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:09:42,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:09:42,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:09:42,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:09:42,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:09:42,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:09:42,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:09:42,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:09:42,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:09:42,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:09:42,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:09:42,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:09:42,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:09:42,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:09:42,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:09:42,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:09:42,372 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:09:42,372 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:09:42,372 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:09:42,373 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:09:42,373 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:09:42,373 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:09:42,375 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:09:42,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:09:42,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:09:42,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:09:42,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:09:42,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:09:42,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:09:42,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:09:42,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:09:42,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:09:42,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:09:42,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:09:42,379 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:09:42,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:09:42,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:09:42,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:09:42,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:09:42,380 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:09:42,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:09:42,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:09:42,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:09:42,382 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:09:42,383 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:09:42,384 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_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e519ed25ecd119d6faecde1d069a0dace03b3e5 [2020-11-29 19:09:42,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:09:42,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:09:42,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:09:42,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:09:42,817 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:09:42,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2020-11-29 19:09:42,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/data/b6e346036/0ebc913b6d394f96b1dee146bbb33fc6/FLAGad6939824 [2020-11-29 19:09:43,626 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:09:43,627 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2020-11-29 19:09:43,666 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/data/b6e346036/0ebc913b6d394f96b1dee146bbb33fc6/FLAGad6939824 [2020-11-29 19:09:43,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/data/b6e346036/0ebc913b6d394f96b1dee146bbb33fc6 [2020-11-29 19:09:43,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:09:43,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:09:43,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:09:43,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:09:43,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:09:43,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:43" (1/1) ... [2020-11-29 19:09:43,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e6c34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:43, skipping insertion in model container [2020-11-29 19:09:43,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:43" (1/1) ... [2020-11-29 19:09:43,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:09:43,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:09:44,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:09:44,391 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:09:44,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:09:44,530 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:09:44,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44 WrapperNode [2020-11-29 19:09:44,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:09:44,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:09:44,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:09:44,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:09:44,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:09:44,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:09:44,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:09:44,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:09:44,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:09:44,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:09:44,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:09:44,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:09:44,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/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 [2020-11-29 19:09:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:09:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:09:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:09:44,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:09:46,432 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:09:46,432 INFO L298 CfgBuilder]: Removed 358 assume(true) statements. [2020-11-29 19:09:46,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:46 BoogieIcfgContainer [2020-11-29 19:09:46,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:09:46,435 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:09:46,436 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:09:46,439 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:09:46,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:09:46,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:09:43" (1/3) ... [2020-11-29 19:09:46,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f4a7171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:09:46, skipping insertion in model container [2020-11-29 19:09:46,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:09:46,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44" (2/3) ... [2020-11-29 19:09:46,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f4a7171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:09:46, skipping insertion in model container [2020-11-29 19:09:46,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:09:46,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:46" (3/3) ... [2020-11-29 19:09:46,444 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2020-11-29 19:09:46,487 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:09:46,487 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:09:46,487 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:09:46,488 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:09:46,488 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:09:46,488 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:09:46,488 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:09:46,488 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:09:46,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states. [2020-11-29 19:09:46,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-29 19:09:46,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:09:46,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:09:46,577 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:09:46,577 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:46,577 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:09:46,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states. [2020-11-29 19:09:46,584 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-29 19:09:46,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:09:46,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:09:46,586 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:09:46,586 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:46,591 INFO L794 eck$LassoCheckResult]: Stem: 87#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 170#L1005true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 79#L1013true main_#t~ret69 := valid_product_#res;main_~tmp~10 := main_#t~ret69;havoc main_#t~ret69; 208#L839true assume 0 != main_~tmp~10; 21#L813true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 210#L861-1true [2020-11-29 19:09:46,591 INFO L796 eck$LassoCheckResult]: Loop: 210#L861-1true assume !false; 18#L323true assume test_~splverifierCounter~0 < 4; 123#L324true test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 136#L332true assume !(0 != test_~tmp~6); 137#L332-1true test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 154#L342true assume !(0 != test_~tmp___0~2); 159#L342-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 110#L352true assume 0 != test_~tmp___2~0; 67#L358-1true assume !(0 != ~pumpRunning~0); 155#L61true assume !(0 != ~systemActive~0); 229#L68true havoc __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_#t~ret71, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 27#L923-5true __utac_acc__Specification1_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; 206#L861true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 210#L861-1true [2020-11-29 19:09:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:46,597 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:09:46,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:46,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841947340] [2020-11-29 19:09:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:46,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:46,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:47,034 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:09:47,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:47,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1666538035, now seen corresponding path program 1 times [2020-11-29 19:09:47,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:47,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982195320] [2020-11-29 19:09:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:47,056 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:47,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:47,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:09:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:47,087 INFO L82 PathProgramCache]: Analyzing trace with hash 47740903, now seen corresponding path program 1 times [2020-11-29 19:09:47,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:47,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315738540] [2020-11-29 19:09:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:47,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315738540] [2020-11-29 19:09:47,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:47,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:09:47,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106255394] [2020-11-29 19:09:47,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:47,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:09:47,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:09:47,421 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 6 states. [2020-11-29 19:09:47,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:47,783 INFO L93 Difference]: Finished difference Result 492 states and 714 transitions. [2020-11-29 19:09:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:09:47,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 714 transitions. [2020-11-29 19:09:47,798 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 321 [2020-11-29 19:09:47,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 471 states and 693 transitions. [2020-11-29 19:09:47,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 471 [2020-11-29 19:09:47,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 471 [2020-11-29 19:09:47,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 693 transitions. [2020-11-29 19:09:47,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:09:47,834 INFO L691 BuchiCegarLoop]: Abstraction has 471 states and 693 transitions. [2020-11-29 19:09:47,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 693 transitions. [2020-11-29 19:09:47,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 258. [2020-11-29 19:09:47,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-11-29 19:09:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 378 transitions. [2020-11-29 19:09:47,904 INFO L714 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2020-11-29 19:09:47,904 INFO L594 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2020-11-29 19:09:47,904 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:09:47,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 378 transitions. [2020-11-29 19:09:47,908 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-11-29 19:09:47,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:09:47,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:09:47,911 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:09:47,912 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:47,912 INFO L794 eck$LassoCheckResult]: Stem: 869#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 737#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 738#L1005 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 860#L1013 main_#t~ret69 := valid_product_#res;main_~tmp~10 := main_#t~ret69;havoc main_#t~ret69; 861#L839 assume 0 != main_~tmp~10; 773#L813 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 774#L861-1 [2020-11-29 19:09:47,913 INFO L796 eck$LassoCheckResult]: Loop: 774#L861-1 assume !false; 767#L323 assume test_~splverifierCounter~0 < 4; 768#L324 test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 908#L332 assume !(0 != test_~tmp~6); 916#L332-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 917#L342 assume !(0 != test_~tmp___0~2); 914#L342-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 896#L352 assume 0 != test_~tmp___2~0; 842#L358-1 assume !(0 != ~pumpRunning~0); 845#L61 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 931#L145 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 818#L119-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 819#L93-3 assume !(0 == ~pumpRunning~0); 794#L68 havoc __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_#t~ret71, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 784#L923-5 __utac_acc__Specification1_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; 785#L861 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 774#L861-1 [2020-11-29 19:09:47,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:47,917 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:09:47,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:47,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343929106] [2020-11-29 19:09:47,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:48,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:48,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:48,113 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:09:48,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:48,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1439331005, now seen corresponding path program 1 times [2020-11-29 19:09:48,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:48,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958414126] [2020-11-29 19:09:48,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:48,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958414126] [2020-11-29 19:09:48,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:48,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:09:48,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074852020] [2020-11-29 19:09:48,144 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:09:48,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:48,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:09:48,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:48,145 INFO L87 Difference]: Start difference. First operand 258 states and 378 transitions. cyclomatic complexity: 123 Second operand 3 states. [2020-11-29 19:09:48,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:48,304 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2020-11-29 19:09:48,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:09:48,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 346 transitions. [2020-11-29 19:09:48,307 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-11-29 19:09:48,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 252 states and 346 transitions. [2020-11-29 19:09:48,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 252 [2020-11-29 19:09:48,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 252 [2020-11-29 19:09:48,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 252 states and 346 transitions. [2020-11-29 19:09:48,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:09:48,318 INFO L691 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-11-29 19:09:48,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states and 346 transitions. [2020-11-29 19:09:48,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-11-29 19:09:48,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-11-29 19:09:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 346 transitions. [2020-11-29 19:09:48,335 INFO L714 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-11-29 19:09:48,335 INFO L594 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2020-11-29 19:09:48,335 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:09:48,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 346 transitions. [2020-11-29 19:09:48,338 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2020-11-29 19:09:48,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:09:48,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:09:48,339 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:09:48,339 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:48,339 INFO L794 eck$LassoCheckResult]: Stem: 1403#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1259#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1260#L1005 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1359#L1013 main_#t~ret69 := valid_product_#res;main_~tmp~10 := main_#t~ret69;havoc main_#t~ret69; 1394#L839 assume 0 != main_~tmp~10; 1291#L813 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1292#L861-1 [2020-11-29 19:09:48,339 INFO L796 eck$LassoCheckResult]: Loop: 1292#L861-1 assume !false; 1289#L323 assume test_~splverifierCounter~0 < 4; 1290#L324 test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 1504#L332 assume !(0 != test_~tmp~6); 1502#L332-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 1501#L342 assume !(0 != test_~tmp___0~2); 1499#L342-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 1497#L352 assume 0 != test_~tmp___2~0; 1496#L358-1 assume !(0 != ~pumpRunning~0); 1338#L61 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1339#L145 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1351#L119-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1352#L93-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1417#L963-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1426#L968-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 1396#L264-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1361#L264-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1362#L270-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1307#L97-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1308#L68 havoc __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_#t~ret71, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 1301#L923-5 __utac_acc__Specification1_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; 1302#L861 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 1292#L861-1 [2020-11-29 19:09:48,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:48,340 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:09:48,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:48,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096887685] [2020-11-29 19:09:48,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:48,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:48,433 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:48,443 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:09:48,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:48,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1579572239, now seen corresponding path program 1 times [2020-11-29 19:09:48,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:48,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626342334] [2020-11-29 19:09:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:48,450 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:48,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:48,457 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:09:48,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:48,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1462089931, now seen corresponding path program 1 times [2020-11-29 19:09:48,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:48,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865001277] [2020-11-29 19:09:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:48,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:48,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:48,569 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:09:48,722 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 19:11:16,156 WARN L193 SmtUtils]: Spent 1.46 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:12:20,413 WARN L193 SmtUtils]: Spent 1.07 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:12:20,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:12:20 BoogieIcfgContainer [2020-11-29 19:12:20,597 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:12:20,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:12:20,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:12:20,598 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:12:20,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:46" (3/4) ... [2020-11-29 19:12:20,602 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:12:20,698 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a69d4d79-58a4-46ba-b7e8-cd9ba527a5a2/bin/uautomizer/witness.graphml [2020-11-29 19:12:20,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:12:20,703 INFO L168 Benchmark]: Toolchain (without parser) took 156859.45 ms. Allocated memory was 102.8 MB in the beginning and 172.0 MB in the end (delta: 69.2 MB). Free memory was 63.3 MB in the beginning and 122.2 MB in the end (delta: -58.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:20,706 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 102.8 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:12:20,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.70 ms. Allocated memory is still 102.8 MB. Free memory was 63.0 MB in the beginning and 65.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:20,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.89 ms. Allocated memory is still 102.8 MB. Free memory was 65.9 MB in the beginning and 60.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:20,709 INFO L168 Benchmark]: Boogie Preprocessor took 124.20 ms. Allocated memory is still 102.8 MB. Free memory was 60.4 MB in the beginning and 56.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:20,710 INFO L168 Benchmark]: RCFGBuilder took 1642.66 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.2 MB in the beginning and 87.0 MB in the end (delta: -30.8 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:20,711 INFO L168 Benchmark]: BuchiAutomizer took 154161.91 ms. Allocated memory was 123.7 MB in the beginning and 172.0 MB in the end (delta: 48.2 MB). Free memory was 87.0 MB in the beginning and 125.4 MB in the end (delta: -38.4 MB). Peak memory consumption was 96.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:20,711 INFO L168 Benchmark]: Witness Printer took 103.31 ms. Allocated memory is still 172.0 MB. Free memory was 124.3 MB in the beginning and 122.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:20,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 102.8 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 685.70 ms. Allocated memory is still 102.8 MB. Free memory was 63.0 MB in the beginning and 65.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 132.89 ms. Allocated memory is still 102.8 MB. Free memory was 65.9 MB in the beginning and 60.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.20 ms. Allocated memory is still 102.8 MB. Free memory was 60.4 MB in the beginning and 56.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1642.66 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.2 MB in the beginning and 87.0 MB in the end (delta: -30.8 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 154161.91 ms. Allocated memory was 123.7 MB in the beginning and 172.0 MB in the end (delta: 48.2 MB). Free memory was 87.0 MB in the beginning and 125.4 MB in the end (delta: -38.4 MB). Peak memory consumption was 96.5 MB. Max. memory is 16.1 GB. * Witness Printer took 103.31 ms. Allocated memory is still 172.0 MB. Free memory was 124.3 MB in the beginning and 122.2 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 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 154.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 153.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 213 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 258 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 1755 SDslu, 1211 SDs, 0 SdLazy, 81 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 322]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=17263} State at position 1 is {NULL=0, NULL=0, NULL=17273, NULL=0, NULL=17263, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b156ec6=0, NULL=17278, NULL=0, NULL=17284, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f795e1f=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=17292, NULL=0, cleanupTimeShifts=4, tmp=1, NULL=17271, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@685c6f14=0, NULL=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@245445af=0, \result=1, head=0, pumpRunning=0, NULL=17276, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@712551e4=55, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e68089b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43945f56=0, NULL=17291, NULL=0, tmp=1, NULL=0, NULL=17274, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1364ec93=0, NULL=0, tmp___0=0, NULL=17280, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fc57b79=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d9fbcd6=0, NULL=17288, NULL=17272, NULL=17265, NULL=17270, NULL=0, NULL=0, NULL=17283, retValue_acc=0, NULL=17286, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=17289, tmp=0, tmp___0=0, NULL=17267, NULL=0, NULL=0, NULL=0, systemActive=1, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ebedf41=0, NULL=0, NULL=0, NULL=0, NULL=17264, \result=0, NULL=17287, NULL=17290, NULL=0, NULL=17281, NULL=0, NULL=0, NULL=17277, NULL=17266, tmp___2=55, retValue_acc=1, splverifierCounter=0, NULL=0, \result=0, NULL=17269, NULL=17275, NULL=17279, NULL=0, NULL=17268, NULL=17285} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L557] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L754] int cleanupTimeShifts = 4; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; [L830] int retValue_acc ; [L831] int tmp ; [L1009] int retValue_acc ; [L1012] retValue_acc = 1 [L1013] return (retValue_acc); [L837] tmp = valid_product() [L839] COND TRUE \read(tmp) [L313] int splverifierCounter ; [L314] int tmp ; [L315] int tmp___0 ; [L316] int tmp___1 ; [L317] int tmp___2 ; [L320] splverifierCounter = 0 Loop: [L322] COND TRUE 1 [L324] COND TRUE splverifierCounter < 4 [L330] tmp = __VERIFIER_nondet_int() [L332] COND FALSE !(\read(tmp)) [L340] tmp___0 = __VERIFIER_nondet_int() [L342] COND FALSE !(\read(tmp___0)) [L350] tmp___2 = __VERIFIER_nondet_int() [L352] COND TRUE \read(tmp___2) [L61] COND FALSE !(\read(pumpRunning)) [L68] COND TRUE \read(systemActive) [L142] int tmp ; [L145] COND FALSE !(\read(pumpRunning)) [L116] int tmp ; [L119] COND FALSE !(\read(pumpRunning)) [L90] int tmp ; [L93] COND TRUE ! pumpRunning [L256] int retValue_acc ; [L257] int tmp ; [L258] int tmp___0 ; [L960] int retValue_acc ; [L963] COND TRUE waterLevel < 2 [L964] retValue_acc = 1 [L965] return (retValue_acc); [L262] tmp = isHighWaterSensorDry() [L264] COND TRUE \read(tmp) [L265] tmp___0 = 0 [L269] retValue_acc = tmp___0 [L270] return (retValue_acc); [L95] tmp = isHighWaterLevel() [L97] COND FALSE !(\read(tmp)) [L854] int tmp ; [L855] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); [L859] tmp = isMethaneLevelCritical() [L861] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...