./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.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_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/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 864598d769cf301df696f6997eba405266387160 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:38:41,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:38:41,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:38:41,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:38:41,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:38:41,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:38:41,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:38:41,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:38:41,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:38:41,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:38:41,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:38:41,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:38:41,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:38:41,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:38:41,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:38:41,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:38:41,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:38:41,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:38:41,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:38:41,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:38:41,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:38:41,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:38:41,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:38:41,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:38:41,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:38:41,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:38:41,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:38:41,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:38:41,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:38:41,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:38:41,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:38:41,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:38:41,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:38:41,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:38:41,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:38:41,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:38:41,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:38:41,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:38:41,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:38:41,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:38:41,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:38:41,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:38:41,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:38:41,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:38:41,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:38:41,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:38:41,416 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:38:41,416 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:38:41,416 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:38:41,417 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:38:41,417 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:38:41,417 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:38:41,417 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:38:41,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:38:41,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:38:41,418 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:38:41,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:38:41,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:38:41,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:38:41,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:38:41,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:38:41,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:38:41,419 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:38:41,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:38:41,420 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:38:41,420 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:38:41,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:38:41,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:38:41,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:38:41,421 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:38:41,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:38:41,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:38:41,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:38:41,422 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:38:41,423 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:38:41,423 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_b90e677a-d5bc-4f27-827e-4bc01ccd062b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 864598d769cf301df696f6997eba405266387160 [2020-11-29 19:38:41,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:38:41,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:38:41,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:38:41,710 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:38:41,711 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:38:41,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2020-11-29 19:38:41,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/data/c8572abba/ce192e51b46d43b7a09ef39a47f64dd7/FLAGbc4ffb396 [2020-11-29 19:38:42,405 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:38:42,405 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2020-11-29 19:38:42,419 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/data/c8572abba/ce192e51b46d43b7a09ef39a47f64dd7/FLAGbc4ffb396 [2020-11-29 19:38:42,720 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/data/c8572abba/ce192e51b46d43b7a09ef39a47f64dd7 [2020-11-29 19:38:42,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:38:42,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:38:42,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:38:42,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:38:42,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:38:42,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:38:42" (1/1) ... [2020-11-29 19:38:42,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69554cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:42, skipping insertion in model container [2020-11-29 19:38:42,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:38:42" (1/1) ... [2020-11-29 19:38:42,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:38:42,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:38:43,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:38:43,188 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:38:43,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:38:43,347 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:38:43,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43 WrapperNode [2020-11-29 19:38:43,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:38:43,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:38:43,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:38:43,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:38:43,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:38:43,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:38:43,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:38:43,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:38:43,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... [2020-11-29 19:38:43,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:38:43,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:38:43,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:38:43,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:38:43,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:38:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:38:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:38:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:38:44,521 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:38:44,522 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-29 19:38:44,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:44 BoogieIcfgContainer [2020-11-29 19:38:44,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:38:44,525 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:38:44,525 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:38:44,529 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:38:44,530 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:38:44,530 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:38:42" (1/3) ... [2020-11-29 19:38:44,531 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1627e23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:38:44, skipping insertion in model container [2020-11-29 19:38:44,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:38:44,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:43" (2/3) ... [2020-11-29 19:38:44,532 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1627e23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:38:44, skipping insertion in model container [2020-11-29 19:38:44,532 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:38:44,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:44" (3/3) ... [2020-11-29 19:38:44,534 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-11-29 19:38:44,582 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:38:44,583 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:38:44,583 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:38:44,583 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:38:44,583 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:38:44,583 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:38:44,583 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:38:44,583 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:38:44,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2020-11-29 19:38:44,622 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-29 19:38:44,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:38:44,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:38:44,631 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:38:44,631 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:38:44,631 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:38:44,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states. [2020-11-29 19:38:44,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-29 19:38:44,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:38:44,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:38:44,641 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:38:44,641 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:38:44,675 INFO L794 eck$LassoCheckResult]: Stem: 97#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 107#L305true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 111#L313true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 102#L132true assume 0 != main_~tmp~0; 70#L105true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 82#L157-1true [2020-11-29 19:38:44,676 INFO L796 eck$LassoCheckResult]: Loop: 82#L157-1true assume !false; 8#L544true assume test_~splverifierCounter~0 < 4; 94#L545true test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 95#L553true assume !(0 != test_~tmp~6); 98#L553-1true test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 12#L563true assume !(0 != test_~tmp___0~3); 13#L563-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 73#L573true assume 0 != test_~tmp___2~0; 41#L579-1true assume !(0 != ~pumpRunning~0); 72#L328true assume !(0 != ~systemActive~0); 121#L335true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 10#L255true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 83#L157true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 82#L157-1true [2020-11-29 19:38:44,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:44,683 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:38:44,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:44,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124834607] [2020-11-29 19:38:44,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:44,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:45,134 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:45,173 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:45,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1671186419, now seen corresponding path program 1 times [2020-11-29 19:38:45,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:45,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232323870] [2020-11-29 19:38:45,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:45,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:45,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:45,209 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:45,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:45,216 INFO L82 PathProgramCache]: Analyzing trace with hash 43092519, now seen corresponding path program 1 times [2020-11-29 19:38:45,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:45,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170585074] [2020-11-29 19:38:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:45,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170585074] [2020-11-29 19:38:45,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:38:45,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:38:45,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450050912] [2020-11-29 19:38:45,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:38:45,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:38:45,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:38:45,491 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 6 states. [2020-11-29 19:38:45,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:38:45,842 INFO L93 Difference]: Finished difference Result 276 states and 396 transitions. [2020-11-29 19:38:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:38:45,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 276 states and 396 transitions. [2020-11-29 19:38:45,867 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2020-11-29 19:38:45,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 276 states to 255 states and 375 transitions. [2020-11-29 19:38:45,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2020-11-29 19:38:45,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2020-11-29 19:38:45,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 375 transitions. [2020-11-29 19:38:45,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:38:45,889 INFO L691 BuchiCegarLoop]: Abstraction has 255 states and 375 transitions. [2020-11-29 19:38:45,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 375 transitions. [2020-11-29 19:38:45,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 150. [2020-11-29 19:38:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-29 19:38:45,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 219 transitions. [2020-11-29 19:38:45,955 INFO L714 BuchiCegarLoop]: Abstraction has 150 states and 219 transitions. [2020-11-29 19:38:45,956 INFO L594 BuchiCegarLoop]: Abstraction has 150 states and 219 transitions. [2020-11-29 19:38:45,956 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:38:45,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 219 transitions. [2020-11-29 19:38:45,962 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2020-11-29 19:38:45,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:38:45,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:38:45,964 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:38:45,964 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:38:45,964 INFO L794 eck$LassoCheckResult]: Stem: 514#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 426#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 427#L305 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 519#L313 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 516#L132 assume 0 != main_~tmp~0; 501#L105 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 465#L157-1 [2020-11-29 19:38:45,964 INFO L796 eck$LassoCheckResult]: Loop: 465#L157-1 assume !false; 423#L544 assume test_~splverifierCounter~0 < 4; 424#L545 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 513#L553 assume !(0 != test_~tmp~6); 512#L553-1 test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 432#L563 assume !(0 != test_~tmp___0~3); 433#L563-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 435#L573 assume 0 != test_~tmp___2~0; 469#L579-1 assume !(0 != ~pumpRunning~0); 414#L328 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 490#L386 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 492#L360-1 assume !(0 == ~pumpRunning~0); 493#L335 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 428#L255 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 429#L157 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 465#L157-1 [2020-11-29 19:38:45,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:45,965 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:38:45,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:45,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459458354] [2020-11-29 19:38:45,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:46,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:46,101 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:46,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:46,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:46,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1961899915, now seen corresponding path program 1 times [2020-11-29 19:38:46,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:46,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555282256] [2020-11-29 19:38:46,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:46,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555282256] [2020-11-29 19:38:46,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:38:46,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:38:46,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901538575] [2020-11-29 19:38:46,157 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:38:46,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:38:46,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:38:46,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:38:46,158 INFO L87 Difference]: Start difference. First operand 150 states and 219 transitions. cyclomatic complexity: 72 Second operand 3 states. [2020-11-29 19:38:46,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:38:46,283 INFO L93 Difference]: Finished difference Result 189 states and 259 transitions. [2020-11-29 19:38:46,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:38:46,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 259 transitions. [2020-11-29 19:38:46,287 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2020-11-29 19:38:46,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 189 states and 259 transitions. [2020-11-29 19:38:46,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2020-11-29 19:38:46,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2020-11-29 19:38:46,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 259 transitions. [2020-11-29 19:38:46,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:38:46,292 INFO L691 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2020-11-29 19:38:46,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 259 transitions. [2020-11-29 19:38:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-11-29 19:38:46,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-11-29 19:38:46,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2020-11-29 19:38:46,302 INFO L714 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2020-11-29 19:38:46,302 INFO L594 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2020-11-29 19:38:46,302 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:38:46,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states and 259 transitions. [2020-11-29 19:38:46,304 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2020-11-29 19:38:46,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:38:46,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:38:46,305 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:38:46,305 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 19:38:46,306 INFO L794 eck$LassoCheckResult]: Stem: 863#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 771#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 772#L305 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 869#L313 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 866#L132 assume 0 != main_~tmp~0; 847#L105 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 810#L157-1 [2020-11-29 19:38:46,306 INFO L796 eck$LassoCheckResult]: Loop: 810#L157-1 assume !false; 768#L544 assume test_~splverifierCounter~0 < 4; 769#L545 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 861#L553 assume !(0 != test_~tmp~6); 860#L553-1 test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 777#L563 assume !(0 != test_~tmp___0~3); 778#L563-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 780#L573 assume 0 != test_~tmp___2~0; 814#L579-1 assume !(0 != ~pumpRunning~0); 816#L328 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 838#L386 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 839#L360-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret40, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 762#L263-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 763#L268-1 isHighWaterLevel_#t~ret40 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret40;havoc isHighWaterLevel_#t~ret40; 830#L488-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 815#L488-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 793#L494-1 processEnvironment__wrappee__highWaterSensor_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret21;havoc processEnvironment__wrappee__highWaterSensor_#t~ret21; 794#L364-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 841#L335 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 773#L255 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 774#L157 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 810#L157-1 [2020-11-29 19:38:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:46,307 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:38:46,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:46,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058534570] [2020-11-29 19:38:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:46,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:46,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:46,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:46,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:46,408 INFO L82 PathProgramCache]: Analyzing trace with hash -2099215593, now seen corresponding path program 1 times [2020-11-29 19:38:46,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:46,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909628579] [2020-11-29 19:38:46,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:46,421 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:46,430 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:46,434 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:46,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:46,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1643144399, now seen corresponding path program 1 times [2020-11-29 19:38:46,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:46,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694164148] [2020-11-29 19:38:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:46,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:46,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:46,540 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:46,665 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 19:40:08,821 WARN L193 SmtUtils]: Spent 1.37 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:40:59,952 WARN L193 SmtUtils]: Spent 51.12 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:41:00,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:41:00 BoogieIcfgContainer [2020-11-29 19:41:00,202 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:41:00,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:41:00,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:41:00,203 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:41:00,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:44" (3/4) ... [2020-11-29 19:41:00,206 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:41:00,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b90e677a-d5bc-4f27-827e-4bc01ccd062b/bin/uautomizer/witness.graphml [2020-11-29 19:41:00,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:41:00,272 INFO L168 Benchmark]: Toolchain (without parser) took 137547.58 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 69.1 MB in the beginning and 90.5 MB in the end (delta: -21.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:00,279 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 81.8 MB. Free memory was 52.6 MB in the beginning and 52.6 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:41:00,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.75 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 68.4 MB in the end (delta: 222.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:00,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.56 ms. Allocated memory is still 100.7 MB. Free memory was 68.4 MB in the beginning and 64.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:00,285 INFO L168 Benchmark]: Boogie Preprocessor took 46.34 ms. Allocated memory is still 100.7 MB. Free memory was 64.7 MB in the beginning and 62.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:00,285 INFO L168 Benchmark]: RCFGBuilder took 1039.23 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 43.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:00,286 INFO L168 Benchmark]: BuchiAutomizer took 135676.71 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 43.4 MB in the beginning and 93.5 MB in the end (delta: -50.1 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:00,288 INFO L168 Benchmark]: Witness Printer took 68.43 ms. Allocated memory is still 130.0 MB. Free memory was 93.5 MB in the beginning and 90.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:00,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 81.8 MB. Free memory was 52.6 MB in the beginning and 52.6 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 623.75 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 68.4 MB in the end (delta: 222.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.56 ms. Allocated memory is still 100.7 MB. Free memory was 68.4 MB in the beginning and 64.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.34 ms. Allocated memory is still 100.7 MB. Free memory was 64.7 MB in the beginning and 62.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1039.23 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 43.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 135676.71 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 43.4 MB in the beginning and 93.5 MB in the end (delta: -50.1 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. * Witness Printer took 68.43 ms. Allocated memory is still 130.0 MB. Free memory was 93.5 MB in the beginning and 90.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 189 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 135.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 134.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 189 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 321 SDtfs, 742 SDslu, 788 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 543]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c4cf8b6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11d15d3e=63, NULL=26957, NULL=26952, NULL=26938, methaneLevelCritical=0, NULL=0, NULL=26948, tmp=0, retValue_acc=0, NULL=26946, NULL=0, tmp___1=0, NULL=26951, NULL=0, NULL=26941, cleanupTimeShifts=4, NULL=26954, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55f7f5fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dc5ad06=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3401aa01=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c6fe375=0, retValue_acc=1, \result=1, head=0, pumpRunning=0, tmp=1, NULL=26943, retValue_acc=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@636f029d=0, \result=1, NULL=0, tmp=1, tmp=1, NULL=0, NULL=26958, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=26945, NULL=26933, tmp=0, head=0, NULL=26939, NULL=0, NULL=0, NULL=0, NULL=26934, NULL=26936, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ce3bc4d=0, NULL=26942, tmp___0=0, NULL=0, NULL=0, NULL=26955, NULL=0, NULL=0, tmp___0=0, NULL=26949, NULL=26947, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=26944, \result=1, \result=0, NULL=26960, \result=0, NULL=0, NULL=26956, NULL=0, NULL=26940, NULL=0, retValue_acc=1, NULL=26937, NULL=26959, tmp___2=63, splverifierCounter=0, NULL=0, NULL=26953, NULL=26950, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56d1cc92=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68750f8f=0, NULL=0, NULL=0, NULL=26935} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L180] int waterLevel = 1; [L181] int methaneLevelCritical = 0; [L321] int pumpRunning = 0; [L322] int systemActive = 1; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L309] int retValue_acc ; [L312] retValue_acc = 1 [L313] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L534] int splverifierCounter ; [L535] int tmp ; [L536] int tmp___0 ; [L537] int tmp___1 ; [L538] int tmp___2 ; [L541] splverifierCounter = 0 Loop: [L543] COND TRUE 1 [L545] COND TRUE splverifierCounter < 4 [L551] tmp = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp)) [L561] tmp___0 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___0)) [L571] tmp___2 = __VERIFIER_nondet_int() [L573] COND TRUE \read(tmp___2) [L328] COND FALSE !(\read(pumpRunning)) [L335] COND TRUE \read(systemActive) [L383] int tmp ; [L386] COND FALSE !(\read(pumpRunning)) [L357] int tmp ; [L360] COND TRUE ! pumpRunning [L480] int retValue_acc ; [L481] int tmp ; [L482] int tmp___0 ; [L260] int retValue_acc ; [L263] COND TRUE waterLevel < 2 [L264] retValue_acc = 1 [L265] return (retValue_acc); [L486] tmp = isHighWaterSensorDry() [L488] COND TRUE \read(tmp) [L489] tmp___0 = 0 [L493] retValue_acc = tmp___0 [L494] return (retValue_acc); [L362] tmp = isHighWaterLevel() [L364] COND FALSE !(\read(tmp)) [L150] int tmp ; [L151] int tmp___0 ; [L251] int retValue_acc ; [L254] retValue_acc = waterLevel [L255] return (retValue_acc); [L155] tmp = getWaterLevel() [L157] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...