./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product56.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_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/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 7692c73e7413f9555138866d08e707f26455dbc0 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:47:00,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:47:00,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:47:00,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:47:00,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:47:00,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:47:00,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:47:00,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:47:00,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:47:00,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:47:00,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:47:00,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:47:00,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:47:00,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:47:00,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:47:00,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:47:00,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:47:00,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:47:00,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:47:00,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:47:00,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:47:00,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:47:00,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:47:00,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:47:00,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:47:00,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:47:00,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:47:00,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:47:00,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:47:00,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:47:00,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:47:00,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:47:00,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:47:00,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:47:00,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:47:00,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:47:00,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:47:00,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:47:00,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:47:00,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:47:00,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:47:00,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:47:00,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:47:00,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:47:00,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:47:00,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:47:00,394 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:47:00,394 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:47:00,395 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:47:00,395 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:47:00,395 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:47:00,396 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:47:00,397 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:47:00,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:47:00,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:47:00,399 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:47:00,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:47:00,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:47:00,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:47:00,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:47:00,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:47:00,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:47:00,401 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:47:00,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:47:00,402 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:47:00,402 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:47:00,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:47:00,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:47:00,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:47:00,404 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:47:00,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:47:00,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:47:00,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:47:00,406 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:47:00,407 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:47:00,408 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_a3ac38be-ddb1-4ee9-b999-0a34d511868b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7692c73e7413f9555138866d08e707f26455dbc0 [2020-11-30 00:47:00,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:47:00,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:47:00,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:47:00,824 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:47:00,826 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:47:00,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2020-11-30 00:47:00,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/data/b835a1176/c7226abeddd2469eafb195beda4a6991/FLAG88da88107 [2020-11-30 00:47:01,674 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:47:01,675 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2020-11-30 00:47:01,713 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/data/b835a1176/c7226abeddd2469eafb195beda4a6991/FLAG88da88107 [2020-11-30 00:47:01,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/data/b835a1176/c7226abeddd2469eafb195beda4a6991 [2020-11-30 00:47:01,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:47:01,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:47:01,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:47:01,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:47:01,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:47:01,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:47:01" (1/1) ... [2020-11-30 00:47:01,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a69fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:01, skipping insertion in model container [2020-11-30 00:47:01,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:47:01" (1/1) ... [2020-11-30 00:47:01,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:47:02,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:47:02,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:47:02,348 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:47:02,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:47:02,480 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:47:02,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02 WrapperNode [2020-11-30 00:47:02,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:47:02,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:47:02,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:47:02,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:47:02,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:47:02,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:47:02,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:47:02,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:47:02,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... [2020-11-30 00:47:02,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:47:02,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:47:02,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:47:02,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:47:02,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:47:02,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:47:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:47:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:47:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:47:04,357 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:47:04,359 INFO L298 CfgBuilder]: Removed 302 assume(true) statements. [2020-11-30 00:47:04,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:04 BoogieIcfgContainer [2020-11-30 00:47:04,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:47:04,365 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:47:04,365 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:47:04,370 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:47:04,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:47:04,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:47:01" (1/3) ... [2020-11-30 00:47:04,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f875856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:47:04, skipping insertion in model container [2020-11-30 00:47:04,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:47:04,374 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:02" (2/3) ... [2020-11-30 00:47:04,375 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f875856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:47:04, skipping insertion in model container [2020-11-30 00:47:04,375 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:47:04,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:04" (3/3) ... [2020-11-30 00:47:04,380 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product56.cil.c [2020-11-30 00:47:04,450 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:47:04,450 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:47:04,451 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:47:04,451 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:47:04,451 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:47:04,451 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:47:04,451 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:47:04,452 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:47:04,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 200 states. [2020-11-30 00:47:04,555 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2020-11-30 00:47:04,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:04,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:04,568 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:04,568 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:04,569 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:47:04,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 200 states. [2020-11-30 00:47:04,578 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2020-11-30 00:47:04,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:04,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:04,588 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:04,588 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:04,605 INFO L794 eck$LassoCheckResult]: Stem: 54#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 64#L506true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 199#L514true main_#t~ret82 := valid_product_#res;main_~tmp~10 := main_#t~ret82;havoc main_#t~ret82; 200#L1026true assume 0 != main_~tmp~10; 52#L1002true ~switchedOnBeforeTS~0 := 0; 49#L534true havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L555-1true [2020-11-30 00:47:04,607 INFO L796 eck$LassoCheckResult]: Loop: 9#L555-1true assume !false; 73#L423true assume test_~splverifierCounter~0 < 4; 42#L424true test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 197#L432true assume !(0 != test_~tmp~5); 198#L432-1true test_~tmp___0~2 := test_#t~nondet40;havoc test_#t~nondet40; 78#L442true assume !(0 != test_~tmp___0~2); 76#L442-1true test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 126#L452true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 168#L460-1true havoc __utac_acc__Specification5_spec__2_#t~ret44;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 139#L309true __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 8#L544true assume !(0 != ~pumpRunning~0); 90#L172true assume !(0 != ~systemActive~0); 172#L179true havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 26#L125true __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 7#L555true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 9#L555-1true [2020-11-30 00:47:04,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:04,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:47:04,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:04,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145271476] [2020-11-30 00:47:04,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:05,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:05,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:05,288 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:05,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:05,293 INFO L82 PathProgramCache]: Analyzing trace with hash 680336184, now seen corresponding path program 1 times [2020-11-30 00:47:05,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:05,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009724458] [2020-11-30 00:47:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:47:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:05,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009724458] [2020-11-30 00:47:05,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:05,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:47:05,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600031845] [2020-11-30 00:47:05,431 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:47:05,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:05,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:47:05,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:47:05,448 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 3 states. [2020-11-30 00:47:05,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:05,596 INFO L93 Difference]: Finished difference Result 387 states and 575 transitions. [2020-11-30 00:47:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:47:05,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 575 transitions. [2020-11-30 00:47:05,612 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 254 [2020-11-30 00:47:05,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 373 states and 560 transitions. [2020-11-30 00:47:05,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 373 [2020-11-30 00:47:05,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 373 [2020-11-30 00:47:05,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 373 states and 560 transitions. [2020-11-30 00:47:05,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:47:05,637 INFO L691 BuchiCegarLoop]: Abstraction has 373 states and 560 transitions. [2020-11-30 00:47:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states and 560 transitions. [2020-11-30 00:47:05,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371. [2020-11-30 00:47:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-11-30 00:47:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 557 transitions. [2020-11-30 00:47:05,717 INFO L714 BuchiCegarLoop]: Abstraction has 371 states and 557 transitions. [2020-11-30 00:47:05,718 INFO L594 BuchiCegarLoop]: Abstraction has 371 states and 557 transitions. [2020-11-30 00:47:05,718 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:47:05,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 371 states and 557 transitions. [2020-11-30 00:47:05,722 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2020-11-30 00:47:05,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:05,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:05,723 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:05,724 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:05,724 INFO L794 eck$LassoCheckResult]: Stem: 794#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 619#L-1 havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 620#L506 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 802#L514 main_#t~ret82 := valid_product_#res;main_~tmp~10 := main_#t~ret82;havoc main_#t~ret82; 803#L1026 assume 0 != main_~tmp~10; 789#L1002 ~switchedOnBeforeTS~0 := 0; 787#L534 havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 611#L555-1 [2020-11-30 00:47:05,724 INFO L796 eck$LassoCheckResult]: Loop: 611#L555-1 assume !false; 615#L423 assume test_~splverifierCounter~0 < 4; 804#L424 test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 859#L432 assume !(0 != test_~tmp~5); 857#L432-1 test_~tmp___0~2 := test_#t~nondet40;havoc test_#t~nondet40; 856#L442 assume !(0 != test_~tmp___0~2); 854#L442-1 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 722#L452 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 724#L460-1 havoc __utac_acc__Specification5_spec__2_#t~ret44;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 735#L309 __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 612#L544 assume !(0 != ~pumpRunning~0); 613#L172 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 673#L256 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret18, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 600#L230-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 602#L204-3 assume !(0 == ~pumpRunning~0); 597#L179 havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 663#L125 __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 609#L555 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 611#L555-1 [2020-11-30 00:47:05,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:05,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:47:05,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:05,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578397564] [2020-11-30 00:47:05,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:05,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:05,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:05,956 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:05,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:05,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1848123808, now seen corresponding path program 1 times [2020-11-30 00:47:05,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:05,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558791756] [2020-11-30 00:47:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:47:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:05,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558791756] [2020-11-30 00:47:05,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:05,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:47:05,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956193774] [2020-11-30 00:47:05,990 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:47:05,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:05,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:47:05,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:47:05,992 INFO L87 Difference]: Start difference. First operand 371 states and 557 transitions. cyclomatic complexity: 189 Second operand 3 states. [2020-11-30 00:47:06,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:06,307 INFO L93 Difference]: Finished difference Result 398 states and 559 transitions. [2020-11-30 00:47:06,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:47:06,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 559 transitions. [2020-11-30 00:47:06,317 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2020-11-30 00:47:06,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 559 transitions. [2020-11-30 00:47:06,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2020-11-30 00:47:06,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2020-11-30 00:47:06,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 559 transitions. [2020-11-30 00:47:06,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:47:06,342 INFO L691 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2020-11-30 00:47:06,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 559 transitions. [2020-11-30 00:47:06,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2020-11-30 00:47:06,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-11-30 00:47:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 559 transitions. [2020-11-30 00:47:06,384 INFO L714 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2020-11-30 00:47:06,385 INFO L594 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2020-11-30 00:47:06,385 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:47:06,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 398 states and 559 transitions. [2020-11-30 00:47:06,389 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2020-11-30 00:47:06,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:06,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:06,391 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:06,391 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, 1] [2020-11-30 00:47:06,391 INFO L794 eck$LassoCheckResult]: Stem: 1535#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1392#L-1 havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1393#L506 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1546#L514 main_#t~ret82 := valid_product_#res;main_~tmp~10 := main_#t~ret82;havoc main_#t~ret82; 1547#L1026 assume 0 != main_~tmp~10; 1533#L1002 ~switchedOnBeforeTS~0 := 0; 1531#L534 havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1532#L555-1 [2020-11-30 00:47:06,392 INFO L796 eck$LassoCheckResult]: Loop: 1532#L555-1 assume !false; 1552#L423 assume test_~splverifierCounter~0 < 4; 1523#L424 test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 1524#L432 assume !(0 != test_~tmp~5); 1542#L432-1 test_~tmp___0~2 := test_#t~nondet40;havoc test_#t~nondet40; 1406#L442 assume !(0 != test_~tmp___0~2); 1374#L442-1 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 1375#L452 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1485#L460-1 havoc __utac_acc__Specification5_spec__2_#t~ret44;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1512#L309 __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 1387#L544 assume !(0 != ~pumpRunning~0); 1388#L172 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1439#L256 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret18, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1376#L230-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1377#L204-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret37, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1470#L133-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1471#L138-3 isHighWaterLevel_#t~ret37 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret37;havoc isHighWaterLevel_#t~ret37; 1613#L358-9 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1609#L358-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1603#L364-3 processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; 1403#L208-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1372#L179 havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1642#L125 __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 1640#L555 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 1532#L555-1 [2020-11-30 00:47:06,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:06,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:47:06,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:06,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158627587] [2020-11-30 00:47:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:06,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:06,495 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:06,512 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:06,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:06,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1709468012, now seen corresponding path program 1 times [2020-11-30 00:47:06,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:06,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004272340] [2020-11-30 00:47:06,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:47:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:06,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004272340] [2020-11-30 00:47:06,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:06,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:47:06,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148879198] [2020-11-30 00:47:06,592 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:47:06,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:06,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:47:06,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:47:06,593 INFO L87 Difference]: Start difference. First operand 398 states and 559 transitions. cyclomatic complexity: 164 Second operand 5 states. [2020-11-30 00:47:07,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:07,099 INFO L93 Difference]: Finished difference Result 1823 states and 2579 transitions. [2020-11-30 00:47:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:47:07,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1823 states and 2579 transitions. [2020-11-30 00:47:07,122 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1262 [2020-11-30 00:47:07,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1823 states to 1823 states and 2579 transitions. [2020-11-30 00:47:07,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1823 [2020-11-30 00:47:07,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1823 [2020-11-30 00:47:07,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1823 states and 2579 transitions. [2020-11-30 00:47:07,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:47:07,152 INFO L691 BuchiCegarLoop]: Abstraction has 1823 states and 2579 transitions. [2020-11-30 00:47:07,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states and 2579 transitions. [2020-11-30 00:47:07,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 783. [2020-11-30 00:47:07,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-11-30 00:47:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1087 transitions. [2020-11-30 00:47:07,192 INFO L714 BuchiCegarLoop]: Abstraction has 783 states and 1087 transitions. [2020-11-30 00:47:07,192 INFO L594 BuchiCegarLoop]: Abstraction has 783 states and 1087 transitions. [2020-11-30 00:47:07,192 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:47:07,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 783 states and 1087 transitions. [2020-11-30 00:47:07,199 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 554 [2020-11-30 00:47:07,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:07,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:07,202 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:07,203 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, 1, 1, 1] [2020-11-30 00:47:07,204 INFO L794 eck$LassoCheckResult]: Stem: 3791#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3632#L-1 havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 3633#L506 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 3799#L514 main_#t~ret82 := valid_product_#res;main_~tmp~10 := main_#t~ret82;havoc main_#t~ret82; 3800#L1026 assume 0 != main_~tmp~10; 3787#L1002 ~switchedOnBeforeTS~0 := 0; 3785#L534 havoc test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3786#L555-1 [2020-11-30 00:47:07,205 INFO L796 eck$LassoCheckResult]: Loop: 3786#L555-1 assume !false; 4072#L423 assume test_~splverifierCounter~0 < 4; 4062#L424 test_~tmp~5 := test_#t~nondet39;havoc test_#t~nondet39; 4060#L432 assume !(0 != test_~tmp~5); 4044#L432-1 test_~tmp___0~2 := test_#t~nondet40;havoc test_#t~nondet40; 4042#L442 assume !(0 != test_~tmp___0~2); 4041#L442-1 test_~tmp___2~0 := test_#t~nondet41;havoc test_#t~nondet41; 4121#L452 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 4035#L460-1 havoc __utac_acc__Specification5_spec__2_#t~ret44;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 4081#L309 __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 4080#L544 assume !(0 != ~pumpRunning~0); 4079#L172 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3985#L256 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret18, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 3983#L230-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3981#L204-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret37, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3979#L133-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 3944#L138-3 isHighWaterLevel_#t~ret37 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret37;havoc isHighWaterLevel_#t~ret37; 3747#L358-9 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 3748#L358-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 3703#L364-3 processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; 3643#L208-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 3612#L179 havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 4075#L125 __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 3624#L555 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 3625#L309-1 __utac_acc__Specification5_spec__3_#t~ret46 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 4074#L559 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 3786#L555-1 [2020-11-30 00:47:07,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:07,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-30 00:47:07,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:07,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065390264] [2020-11-30 00:47:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:07,263 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:07,314 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:07,323 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:07,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:07,327 INFO L82 PathProgramCache]: Analyzing trace with hash 2121242119, now seen corresponding path program 1 times [2020-11-30 00:47:07,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:07,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390682857] [2020-11-30 00:47:07,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:07,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:07,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:07,343 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:07,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:07,344 INFO L82 PathProgramCache]: Analyzing trace with hash 155030477, now seen corresponding path program 1 times [2020-11-30 00:47:07,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:07,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958892234] [2020-11-30 00:47:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:07,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:07,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:07,432 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:07,665 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-30 00:47:07,789 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-30 00:48:50,928 WARN L193 SmtUtils]: Spent 1.72 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:50:01,568 WARN L193 SmtUtils]: Spent 1.18 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:50:02,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:50:02 BoogieIcfgContainer [2020-11-30 00:50:02,017 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:50:02,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:50:02,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:50:02,019 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:50:02,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:04" (3/4) ... [2020-11-30 00:50:02,023 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:50:02,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a3ac38be-ddb1-4ee9-b999-0a34d511868b/bin/uautomizer/witness.graphml [2020-11-30 00:50:02,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:50:02,093 INFO L168 Benchmark]: Toolchain (without parser) took 180151.50 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 62.3 MB in the beginning and 60.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:02,093 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 92.3 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:50:02,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.78 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 58.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:02,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 148.95 ms. Allocated memory is still 92.3 MB. Free memory was 58.6 MB in the beginning and 53.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:02,095 INFO L168 Benchmark]: Boogie Preprocessor took 75.93 ms. Allocated memory is still 92.3 MB. Free memory was 53.5 MB in the beginning and 50.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:02,096 INFO L168 Benchmark]: RCFGBuilder took 1654.54 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 67.1 MB in the end (delta: -16.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:02,097 INFO L168 Benchmark]: BuchiAutomizer took 177652.50 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 67.1 MB in the beginning and 63.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:02,097 INFO L168 Benchmark]: Witness Printer took 73.10 ms. Allocated memory is still 138.4 MB. Free memory was 63.9 MB in the beginning and 60.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:02,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 92.3 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 525.78 ms. Allocated memory is still 92.3 MB. Free memory was 61.9 MB in the beginning and 58.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 148.95 ms. Allocated memory is still 92.3 MB. Free memory was 58.6 MB in the beginning and 53.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.93 ms. Allocated memory is still 92.3 MB. Free memory was 53.5 MB in the beginning and 50.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1654.54 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 67.1 MB in the end (delta: -16.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 177652.50 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 67.1 MB in the beginning and 63.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. * Witness Printer took 73.10 ms. Allocated memory is still 138.4 MB. Free memory was 63.9 MB in the beginning and 60.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 783 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 177.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 176.0s. Construction of modules took 0.5s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1042 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 783 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 943 SDtfs, 1483 SDslu, 1494 SDs, 0 SdLazy, 242 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 422]: 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=16776, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d84bb06=0, NULL=1, NULL=16788, methaneLevelCritical=0, tmp=0, NULL=0, NULL=16780, NULL=0, tmp___1=0, retValue_acc=0, NULL=0, NULL=16789, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cd8a107=0, NULL=16765, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1990ed64=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21290810=83, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42dd9213=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@317980c8=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=16783, NULL=0, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, tmp=1, NULL=0, NULL=16777, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=16786, NULL=16785, NULL=16778, tmp=0, head=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e73832a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@624343b9=0, NULL=16794, NULL=16787, NULL=16771, tmp=0, tmp=1, tmp___0=0, NULL=0, NULL=0, NULL=16779, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@950b0e2=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=16784, NULL=16770, switchedOnBeforeTS=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60de5910=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55500fc8=0, NULL=0, systemActive=1, NULL=16782, \result=1, NULL=0, NULL=0, NULL=16769, \result=0, NULL=0, NULL=16775, retValue_acc=0, \result=0, tmp___0=0, NULL=16773, NULL=0, NULL=16774, retValue_acc=1, NULL=16766, NULL=16772, NULL=16767, tmp___2=83, splverifierCounter=0, NULL=0, NULL=16768, NULL=16781, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60167544=0, NULL=0, NULL=16764, NULL=0, NULL=16795, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L528] int switchedOnBeforeTS ; [L746] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L943] int cleanupTimeShifts = 4; [L1017] int retValue_acc ; [L1018] int tmp ; [L510] int retValue_acc ; [L513] retValue_acc = 1 [L514] return (retValue_acc); [L1024] tmp = valid_product() [L1026] COND TRUE \read(tmp) [L533] switchedOnBeforeTS = 0 [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 Loop: [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L406] systemActive = 1 [L305] int retValue_acc ; [L308] retValue_acc = pumpRunning [L309] return (retValue_acc); [L542] switchedOnBeforeTS = isPumpRunning() [L172] COND FALSE !(\read(pumpRunning)) [L179] COND TRUE \read(systemActive) [L253] int tmp ; [L256] COND FALSE !(\read(pumpRunning)) [L227] int tmp ; [L230] COND FALSE !(\read(pumpRunning)) [L201] int tmp ; [L204] COND TRUE ! pumpRunning [L350] int retValue_acc ; [L351] int tmp ; [L352] int tmp___0 ; [L130] int retValue_acc ; [L133] COND TRUE waterLevel < 2 [L134] retValue_acc = 1 [L135] return (retValue_acc); [L356] tmp = isHighWaterSensorDry() [L358] COND TRUE \read(tmp) [L359] tmp___0 = 0 [L363] retValue_acc = tmp___0 [L364] return (retValue_acc); [L206] tmp = isHighWaterLevel() [L208] COND FALSE !(\read(tmp)) [L548] int tmp ; [L549] int tmp___0 ; [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); [L553] tmp = getWaterLevel() [L555] COND TRUE tmp != 2 [L305] int retValue_acc ; [L308] retValue_acc = pumpRunning [L309] return (retValue_acc); [L557] tmp___0 = isPumpRunning() [L559] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...