./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product46.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_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/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 ee3873e13261eb6c81628e215e5ca4b9d8112589 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:38:31,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:38:31,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:38:31,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:38:31,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:38:31,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:38:31,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:38:31,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:38:31,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:38:31,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:38:31,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:38:31,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:38:31,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:38:31,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:38:31,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:38:31,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:38:31,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:38:31,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:38:31,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:38:31,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:38:31,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:38:31,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:38:31,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:38:31,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:38:31,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:38:31,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:38:31,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:38:31,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:38:31,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:38:31,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:38:31,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:38:31,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:38:31,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:38:31,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:38:31,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:38:31,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:38:31,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:38:31,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:38:31,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:38:31,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:38:31,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:38:31,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:38:31,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:38:31,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:38:31,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:38:31,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:38:31,536 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:38:31,536 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:38:31,537 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:38:31,537 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:38:31,537 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:38:31,537 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:38:31,538 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:38:31,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:38:31,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:38:31,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:38:31,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:38:31,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:38:31,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:38:31,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:38:31,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:38:31,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:38:31,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:38:31,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:38:31,545 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:38:31,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:38:31,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:38:31,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:38:31,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:38:31,547 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:38:31,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:38:31,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:38:31,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:38:31,551 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:38:31,553 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:38:31,553 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_f5c86487-dd52-4a77-b078-c5b2864334ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3873e13261eb6c81628e215e5ca4b9d8112589 [2020-11-29 22:38:31,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:38:31,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:38:31,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:38:31,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:38:31,886 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:38:31,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2020-11-29 22:38:31,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/data/4d0dfb800/a122590be5ab424c8c135063728b256a/FLAGc9e7541ee [2020-11-29 22:38:32,676 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:38:32,683 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2020-11-29 22:38:32,711 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/data/4d0dfb800/a122590be5ab424c8c135063728b256a/FLAGc9e7541ee [2020-11-29 22:38:32,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/data/4d0dfb800/a122590be5ab424c8c135063728b256a [2020-11-29 22:38:32,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:38:32,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:38:32,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:38:32,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:38:32,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:38:32,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:38:32" (1/1) ... [2020-11-29 22:38:32,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7476cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:32, skipping insertion in model container [2020-11-29 22:38:32,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:38:32" (1/1) ... [2020-11-29 22:38:33,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:38:33,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:38:33,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:38:33,486 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:38:33,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:38:33,664 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:38:33,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33 WrapperNode [2020-11-29 22:38:33,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:38:33,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:38:33,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:38:33,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:38:33,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:38:33,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:38:33,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:38:33,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:38:33,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... [2020-11-29 22:38:33,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:38:33,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:38:33,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:38:33,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:38:33,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/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 22:38:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:38:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:38:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:38:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:38:35,000 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:38:35,002 INFO L298 CfgBuilder]: Removed 206 assume(true) statements. [2020-11-29 22:38:35,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:38:35 BoogieIcfgContainer [2020-11-29 22:38:35,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:38:35,007 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:38:35,008 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:38:35,012 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:38:35,013 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:38:35,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:38:32" (1/3) ... [2020-11-29 22:38:35,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40f14896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:38:35, skipping insertion in model container [2020-11-29 22:38:35,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:38:35,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:33" (2/3) ... [2020-11-29 22:38:35,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40f14896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:38:35, skipping insertion in model container [2020-11-29 22:38:35,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:38:35,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:38:35" (3/3) ... [2020-11-29 22:38:35,047 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product46.cil.c [2020-11-29 22:38:35,106 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:38:35,107 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:38:35,107 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:38:35,107 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:38:35,107 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:38:35,108 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:38:35,108 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:38:35,108 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:38:35,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-29 22:38:35,168 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-29 22:38:35,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:38:35,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:38:35,179 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:38:35,179 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:35,180 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:38:35,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-29 22:38:35,190 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-29 22:38:35,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:38:35,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:38:35,192 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:38:35,192 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:35,199 INFO L794 eck$LassoCheckResult]: Stem: 85#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 15#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 59#L105true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 63#L113true main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 39#L571true assume 0 != main_~tmp~4; 120#L547true havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 54#L61-1true [2020-11-29 22:38:35,200 INFO L796 eck$LassoCheckResult]: Loop: 54#L61-1true assume !false; 5#L899true assume test_~splverifierCounter~0 < 4; 79#L900true test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 100#L908true assume !(0 != test_~tmp~9); 104#L908-1true test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 28#L918true assume !(0 != test_~tmp___0~2); 30#L918-1true test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 64#L928true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 74#L936-2true assume !(0 != ~pumpRunning~0); 33#L692true assume !(0 != ~systemActive~0); 94#L699true havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 45#L631-3true __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 91#L55true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 54#L61-1true [2020-11-29 22:38:35,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:35,208 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 22:38:35,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:35,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35720105] [2020-11-29 22:38:35,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:35,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:35,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:35,807 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:38:35,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:35,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1678359114, now seen corresponding path program 1 times [2020-11-29 22:38:35,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:35,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549215113] [2020-11-29 22:38:35,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:35,895 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 22:38:35,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549215113] [2020-11-29 22:38:35,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:35,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:38:35,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092734000] [2020-11-29 22:38:35,907 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:38:35,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:35,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:38:35,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:38:35,929 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 3 states. [2020-11-29 22:38:36,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:36,005 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2020-11-29 22:38:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:38:36,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 188 transitions. [2020-11-29 22:38:36,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-29 22:38:36,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2020-11-29 22:38:36,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-29 22:38:36,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-29 22:38:36,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2020-11-29 22:38:36,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:38:36,054 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 22:38:36,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2020-11-29 22:38:36,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-29 22:38:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 22:38:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2020-11-29 22:38:36,113 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 22:38:36,113 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 22:38:36,113 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:38:36,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2020-11-29 22:38:36,124 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-29 22:38:36,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:38:36,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:38:36,128 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:38:36,128 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:36,128 INFO L794 eck$LassoCheckResult]: Stem: 384#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 302#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 303#L105 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 360#L113 main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 340#L571 assume 0 != main_~tmp~4; 341#L547 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 310#L61-1 [2020-11-29 22:38:36,129 INFO L796 eck$LassoCheckResult]: Loop: 310#L61-1 assume !false; 280#L899 assume test_~splverifierCounter~0 < 4; 281#L900 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 379#L908 assume !(0 != test_~tmp~9); 362#L908-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 327#L918 assume !(0 != test_~tmp___0~2); 328#L918-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 332#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 366#L936-2 assume !(0 != ~pumpRunning~0); 335#L692 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 314#L750 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 315#L724-1 assume !(0 == ~pumpRunning~0); 308#L699 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 346#L631-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 347#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 310#L61-1 [2020-11-29 22:38:36,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:36,130 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 22:38:36,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:36,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974012477] [2020-11-29 22:38:36,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:36,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:36,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:36,405 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:38:36,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:36,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1075674056, now seen corresponding path program 1 times [2020-11-29 22:38:36,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:36,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452494455] [2020-11-29 22:38:36,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:36,431 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 22:38:36,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452494455] [2020-11-29 22:38:36,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:36,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:38:36,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447352748] [2020-11-29 22:38:36,433 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:38:36,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:36,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:38:36,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:38:36,434 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 Second operand 3 states. [2020-11-29 22:38:36,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:36,614 INFO L93 Difference]: Finished difference Result 172 states and 237 transitions. [2020-11-29 22:38:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:38:36,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 172 states and 237 transitions. [2020-11-29 22:38:36,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2020-11-29 22:38:36,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 172 states to 172 states and 237 transitions. [2020-11-29 22:38:36,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 172 [2020-11-29 22:38:36,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 172 [2020-11-29 22:38:36,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 172 states and 237 transitions. [2020-11-29 22:38:36,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:38:36,629 INFO L691 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2020-11-29 22:38:36,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states and 237 transitions. [2020-11-29 22:38:36,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-11-29 22:38:36,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-29 22:38:36,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 237 transitions. [2020-11-29 22:38:36,651 INFO L714 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2020-11-29 22:38:36,652 INFO L594 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2020-11-29 22:38:36,652 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:38:36,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 172 states and 237 transitions. [2020-11-29 22:38:36,657 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2020-11-29 22:38:36,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:38:36,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:38:36,660 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:38:36,660 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:36,661 INFO L794 eck$LassoCheckResult]: Stem: 692#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 607#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 608#L105 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 666#L113 main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 643#L571 assume 0 != main_~tmp~4; 644#L547 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 616#L61-1 [2020-11-29 22:38:36,661 INFO L796 eck$LassoCheckResult]: Loop: 616#L61-1 assume !false; 584#L899 assume test_~splverifierCounter~0 < 4; 585#L900 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 750#L908 assume !(0 != test_~tmp~9); 748#L908-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 747#L918 assume !(0 != test_~tmp___0~2); 745#L918-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 744#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 681#L936-2 assume !(0 != ~pumpRunning~0); 682#L692 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 620#L750 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 621#L724-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 677#L671-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 587#L676-1 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 588#L869-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 711#L869-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 703#L875-1 processEnvironment__wrappee__methaneQuery_#t~ret57 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret57;havoc processEnvironment__wrappee__methaneQuery_#t~ret57; 626#L728-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 614#L699 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 649#L631-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 650#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 616#L61-1 [2020-11-29 22:38:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:36,663 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 22:38:36,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:36,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224245842] [2020-11-29 22:38:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:36,752 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:36,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:36,818 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:38:36,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:36,819 INFO L82 PathProgramCache]: Analyzing trace with hash -515194556, now seen corresponding path program 1 times [2020-11-29 22:38:36,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:36,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775810825] [2020-11-29 22:38:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:36,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:36,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:36,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:38:36,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:36,836 INFO L82 PathProgramCache]: Analyzing trace with hash -59123362, now seen corresponding path program 1 times [2020-11-29 22:38:36,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:36,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137766013] [2020-11-29 22:38:36,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:36,908 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 22:38:36,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137766013] [2020-11-29 22:38:36,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:36,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:38:36,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260466903] [2020-11-29 22:38:37,123 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-11-29 22:38:37,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:37,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:38:37,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:38:37,217 INFO L87 Difference]: Start difference. First operand 172 states and 237 transitions. cyclomatic complexity: 67 Second operand 5 states. [2020-11-29 22:38:37,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:37,575 INFO L93 Difference]: Finished difference Result 574 states and 794 transitions. [2020-11-29 22:38:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:38:37,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 574 states and 794 transitions. [2020-11-29 22:38:37,586 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 411 [2020-11-29 22:38:37,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 574 states to 574 states and 794 transitions. [2020-11-29 22:38:37,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 574 [2020-11-29 22:38:37,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 574 [2020-11-29 22:38:37,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 574 states and 794 transitions. [2020-11-29 22:38:37,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:38:37,610 INFO L691 BuchiCegarLoop]: Abstraction has 574 states and 794 transitions. [2020-11-29 22:38:37,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states and 794 transitions. [2020-11-29 22:38:37,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 338. [2020-11-29 22:38:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-29 22:38:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 460 transitions. [2020-11-29 22:38:37,656 INFO L714 BuchiCegarLoop]: Abstraction has 338 states and 460 transitions. [2020-11-29 22:38:37,656 INFO L594 BuchiCegarLoop]: Abstraction has 338 states and 460 transitions. [2020-11-29 22:38:37,656 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 22:38:37,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 460 transitions. [2020-11-29 22:38:37,659 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 236 [2020-11-29 22:38:37,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:38:37,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:38:37,663 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:38:37,663 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, 1] [2020-11-29 22:38:37,664 INFO L794 eck$LassoCheckResult]: Stem: 1458#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1374#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 1375#L105 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1433#L113 main_#t~ret46 := valid_product_#res;main_~tmp~4 := main_#t~ret46;havoc main_#t~ret46; 1410#L571 assume 0 != main_~tmp~4; 1411#L547 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1490#L61-1 [2020-11-29 22:38:37,665 INFO L796 eck$LassoCheckResult]: Loop: 1490#L61-1 assume !false; 1643#L899 assume test_~splverifierCounter~0 < 4; 1452#L900 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 1453#L908 assume !(0 != test_~tmp~9); 1435#L908-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 1398#L918 assume !(0 != test_~tmp___0~2); 1399#L918-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 1677#L928 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1672#L936-2 assume !(0 != ~pumpRunning~0); 1655#L692 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1659#L750 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1594#L724-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1656#L671-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1348#L676-1 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 1349#L869-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1491#L869-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1493#L875-1 processEnvironment__wrappee__methaneQuery_#t~ret57 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret57;havoc processEnvironment__wrappee__methaneQuery_#t~ret57; 1591#L728-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 1466#L699 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1416#L631-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 1417#L55 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1648#L663 __utac_acc__Specification3_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 1646#L61 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1490#L61-1 [2020-11-29 22:38:37,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:37,666 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-11-29 22:38:37,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:37,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747225193] [2020-11-29 22:38:37,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:37,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:37,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:37,798 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:38:37,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:37,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1180720872, now seen corresponding path program 1 times [2020-11-29 22:38:37,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:37,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140093576] [2020-11-29 22:38:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:37,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:37,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:37,838 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:38:37,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:37,839 INFO L82 PathProgramCache]: Analyzing trace with hash -982967630, now seen corresponding path program 1 times [2020-11-29 22:38:37,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:37,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875456862] [2020-11-29 22:38:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:37,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:37,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:37,933 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:38:38,281 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-11-29 22:38:38,388 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-29 22:40:11,404 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:41:11,907 WARN L193 SmtUtils]: Spent 1.01 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:41:12,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:41:12 BoogieIcfgContainer [2020-11-29 22:41:12,109 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:41:12,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:41:12,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:41:12,110 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:41:12,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:38:35" (3/4) ... [2020-11-29 22:41:12,113 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:41:12,177 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f5c86487-dd52-4a77-b078-c5b2864334ef/bin/uautomizer/witness.graphml [2020-11-29 22:41:12,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:41:12,179 INFO L168 Benchmark]: Toolchain (without parser) took 159197.97 ms. Allocated memory was 92.3 MB in the beginning and 199.2 MB in the end (delta: 107.0 MB). Free memory was 65.3 MB in the beginning and 62.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 107.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:12,180 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 52.0 MB in the beginning and 52.0 MB in the end (delta: 94.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:12,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.54 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 65.0 MB in the beginning and 94.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:12,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.04 ms. Allocated memory is still 127.9 MB. Free memory was 94.6 MB in the beginning and 90.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:12,181 INFO L168 Benchmark]: Boogie Preprocessor took 102.03 ms. Allocated memory is still 127.9 MB. Free memory was 90.9 MB in the beginning and 87.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:12,182 INFO L168 Benchmark]: RCFGBuilder took 1134.60 ms. Allocated memory is still 127.9 MB. Free memory was 87.8 MB in the beginning and 58.8 MB in the end (delta: 28.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:12,183 INFO L168 Benchmark]: BuchiAutomizer took 157101.85 ms. Allocated memory was 127.9 MB in the beginning and 199.2 MB in the end (delta: 71.3 MB). Free memory was 58.8 MB in the beginning and 65.9 MB in the end (delta: -7.0 MB). Peak memory consumption was 80.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:12,183 INFO L168 Benchmark]: Witness Printer took 67.89 ms. Allocated memory is still 199.2 MB. Free memory was 65.9 MB in the beginning and 62.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:12,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 52.0 MB in the beginning and 52.0 MB in the end (delta: 94.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 676.54 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 65.0 MB in the beginning and 94.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.04 ms. Allocated memory is still 127.9 MB. Free memory was 94.6 MB in the beginning and 90.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.03 ms. Allocated memory is still 127.9 MB. Free memory was 90.9 MB in the beginning and 87.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1134.60 ms. Allocated memory is still 127.9 MB. Free memory was 87.8 MB in the beginning and 58.8 MB in the end (delta: 28.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 157101.85 ms. Allocated memory was 127.9 MB in the beginning and 199.2 MB in the end (delta: 71.3 MB). Free memory was 58.8 MB in the beginning and 65.9 MB in the end (delta: -7.0 MB). Peak memory consumption was 80.3 MB. Max. memory is 16.1 GB. * Witness Printer took 67.89 ms. Allocated memory is still 199.2 MB. Free memory was 65.9 MB in the beginning and 62.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 338 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 156.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 155.9s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 236 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 338 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 593 SDtfs, 1008 SDslu, 821 SDs, 0 SdLazy, 164 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 898]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31037} State at position 1 is {NULL=0, NULL=0, NULL=31037, NULL=0, NULL=0, NULL=31043, methaneLevelCritical=0, NULL=0, NULL=31059, NULL=31062, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72fb563e=0, tmp=0, NULL=31061, NULL=0, NULL=31060, tmp=0, cleanupTimeShifts=4, NULL=31041, waterLevel=1, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=31047, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, retValue_acc=0, NULL=0, NULL=0, tmp=1, retValue_acc=1, tmp___0=0, NULL=31058, NULL=31042, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30cc87c3=0, head=0, tmp=0, NULL=31056, NULL=0, NULL=0, NULL=31063, NULL=31039, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51be46be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b82c904=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d400f89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@618d8a74=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@472d251b=0, retValue_acc=0, NULL=31045, NULL=0, NULL=31048, NULL=31040, tmp___0=0, NULL=31055, NULL=0, NULL=0, tmp___0=1, NULL=31044, NULL=31057, NULL=31053, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5350bc5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ae13630=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23a6b7b2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53cb843a=64, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=31049, \result=0, NULL=31052, NULL=31046, NULL=31054, NULL=31038, retValue_acc=1, tmp___2=64, splverifierCounter=0, NULL=0, \result=0, NULL=31064, NULL=31050, tmp___1=0, NULL=31069, NULL=31051, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L287] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L484] int cleanupTimeShifts = 4; [L588] int waterLevel = 1; [L589] int methaneLevelCritical = 0; [L685] int pumpRunning = 0; [L686] int systemActive = 1; [L562] int retValue_acc ; [L563] int tmp ; [L109] int retValue_acc ; [L112] retValue_acc = 1 [L113] return (retValue_acc); [L569] tmp = valid_product() [L571] COND TRUE \read(tmp) [L889] int splverifierCounter ; [L890] int tmp ; [L891] int tmp___0 ; [L892] int tmp___1 ; [L893] int tmp___2 ; [L896] splverifierCounter = 0 Loop: [L898] COND TRUE 1 [L900] COND TRUE splverifierCounter < 4 [L906] tmp = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp)) [L916] tmp___0 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___0)) [L926] tmp___2 = __VERIFIER_nondet_int() [L928] COND TRUE \read(tmp___2) [L883] systemActive = 1 [L692] COND FALSE !(\read(pumpRunning)) [L699] COND TRUE \read(systemActive) [L747] int tmp ; [L750] COND FALSE !(\read(pumpRunning)) [L721] int tmp ; [L724] COND TRUE ! pumpRunning [L861] int retValue_acc ; [L862] int tmp ; [L863] int tmp___0 ; [L668] int retValue_acc ; [L671] COND TRUE waterLevel < 2 [L672] retValue_acc = 1 [L673] return (retValue_acc); [L867] tmp = isHighWaterSensorDry() [L869] COND TRUE \read(tmp) [L870] tmp___0 = 0 [L874] retValue_acc = tmp___0 [L875] return (retValue_acc); [L726] tmp = isHighWaterLevel() [L728] COND FALSE !(\read(tmp)) [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L627] int retValue_acc ; [L630] retValue_acc = methaneLevelCritical [L631] return (retValue_acc); [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L659] int retValue_acc ; [L662] retValue_acc = waterLevel [L663] return (retValue_acc); [L59] tmp___0 = getWaterLevel() [L61] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...