./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product30.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_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/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 fc6847a9bb87d87a67fe11aa1fd5a326e268e6b2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:49:45,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:49:45,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:49:45,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:49:45,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:49:45,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:49:45,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:49:45,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:49:45,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:49:45,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:49:45,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:49:45,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:49:45,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:49:45,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:49:45,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:49:45,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:49:45,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:49:45,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:49:45,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:49:45,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:49:45,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:49:45,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:49:45,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:49:45,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:49:45,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:49:45,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:49:45,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:49:45,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:49:45,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:49:45,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:49:45,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:49:45,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:49:45,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:49:45,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:49:45,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:49:45,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:49:45,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:49:45,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:49:45,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:49:45,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:49:45,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:49:45,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:49:45,306 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:49:45,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:49:45,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:49:45,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:49:45,313 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:49:45,313 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:49:45,313 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:49:45,313 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:49:45,314 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:49:45,314 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:49:45,315 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:49:45,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:49:45,315 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:49:45,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:49:45,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:49:45,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:49:45,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:49:45,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:49:45,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:49:45,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:49:45,317 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:49:45,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:49:45,317 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:49:45,317 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:49:45,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:49:45,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:49:45,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:49:45,318 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:49:45,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:49:45,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:49:45,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:49:45,320 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:49:45,321 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:49:45,321 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_d5998bf0-a993-4213-9166-87a4a6c48fe2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc6847a9bb87d87a67fe11aa1fd5a326e268e6b2 [2020-11-29 18:49:45,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:49:45,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:49:45,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:49:45,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:49:45,652 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:49:45,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c [2020-11-29 18:49:45,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/data/4f9194ab5/90465236f67845e0817b3be6ac244414/FLAGcb4c542ec [2020-11-29 18:49:46,362 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:49:46,362 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c [2020-11-29 18:49:46,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/data/4f9194ab5/90465236f67845e0817b3be6ac244414/FLAGcb4c542ec [2020-11-29 18:49:46,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/data/4f9194ab5/90465236f67845e0817b3be6ac244414 [2020-11-29 18:49:46,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:49:46,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:49:46,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:49:46,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:49:46,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:49:46,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:49:46" (1/1) ... [2020-11-29 18:49:46,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e01d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:46, skipping insertion in model container [2020-11-29 18:49:46,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:49:46" (1/1) ... [2020-11-29 18:49:46,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:49:46,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:49:47,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:49:47,090 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:49:47,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:49:47,201 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:49:47,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47 WrapperNode [2020-11-29 18:49:47,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:49:47,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:49:47,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:49:47,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:49:47,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:49:47,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:49:47,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:49:47,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:49:47,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... [2020-11-29 18:49:47,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:49:47,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:49:47,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:49:47,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:49:47,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:49:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:49:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:49:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:49:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:49:48,559 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:49:48,559 INFO L298 CfgBuilder]: Removed 178 assume(true) statements. [2020-11-29 18:49:48,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:49:48 BoogieIcfgContainer [2020-11-29 18:49:48,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:49:48,562 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:49:48,562 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:49:48,566 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:49:48,566 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:49:48,567 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:49:46" (1/3) ... [2020-11-29 18:49:48,568 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e68b439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:49:48, skipping insertion in model container [2020-11-29 18:49:48,568 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:49:48,568 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:49:47" (2/3) ... [2020-11-29 18:49:48,569 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e68b439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:49:48, skipping insertion in model container [2020-11-29 18:49:48,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:49:48,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:49:48" (3/3) ... [2020-11-29 18:49:48,570 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product30.cil.c [2020-11-29 18:49:48,614 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:49:48,614 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:49:48,615 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:49:48,615 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:49:48,615 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:49:48,615 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:49:48,615 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:49:48,615 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:49:48,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2020-11-29 18:49:48,655 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 18:49:48,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:49:48,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:49:48,663 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:48,664 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:48,664 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:49:48,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2020-11-29 18:49:48,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 18:49:48,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:49:48,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:49:48,673 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:48,673 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:48,678 INFO L794 eck$LassoCheckResult]: Stem: 74#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 11#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 20#L406true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 21#L414true main_#t~ret71 := valid_product_#res;main_~tmp~9 := main_#t~ret71;havoc main_#t~ret71; 5#L877true assume 0 != main_~tmp~9; 95#L853true ~switchedOnBeforeTS~0 := 0; 101#L338true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 27#L359-1true [2020-11-29 18:49:48,679 INFO L796 eck$LassoCheckResult]: Loop: 27#L359-1true assume !false; 9#L274true assume test_~splverifierCounter~0 < 4; 68#L275true test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 82#L283true assume !(0 != test_~tmp~4); 80#L283-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 16#L293true assume !(0 != test_~tmp___0~1); 31#L293-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 57#L303true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 69#L311-2true havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 110#L192true __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 25#L348true assume !(0 != ~pumpRunning~0); 55#L64true assume !(0 != ~systemActive~0); 87#L71true havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 77#L966true __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 24#L359true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 27#L359-1true [2020-11-29 18:49:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:48,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 18:49:48,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:48,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488685724] [2020-11-29 18:49:48,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:48,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:49,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:49,216 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:49:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:49,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1012669327, now seen corresponding path program 1 times [2020-11-29 18:49:49,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:49,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134092941] [2020-11-29 18:49:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:49,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:49,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134092941] [2020-11-29 18:49:49,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:49,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:49:49,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627836326] [2020-11-29 18:49:49,311 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:49:49,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:49,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:49:49,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:49:49,330 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 3 states. [2020-11-29 18:49:49,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:49,400 INFO L93 Difference]: Finished difference Result 111 states and 155 transitions. [2020-11-29 18:49:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:49:49,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 155 transitions. [2020-11-29 18:49:49,409 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 18:49:49,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2020-11-29 18:49:49,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2020-11-29 18:49:49,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2020-11-29 18:49:49,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2020-11-29 18:49:49,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:49:49,419 INFO L691 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 18:49:49,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2020-11-29 18:49:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-11-29 18:49:49,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-29 18:49:49,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2020-11-29 18:49:49,454 INFO L714 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 18:49:49,454 INFO L594 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-29 18:49:49,455 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:49:49,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2020-11-29 18:49:49,457 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 18:49:49,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:49:49,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:49:49,459 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:49,459 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:49,459 INFO L794 eck$LassoCheckResult]: Stem: 323#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 245#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 246#L406 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 259#L414 main_#t~ret71 := valid_product_#res;main_~tmp~9 := main_#t~ret71;havoc main_#t~ret71; 238#L877 assume 0 != main_~tmp~9; 239#L853 ~switchedOnBeforeTS~0 := 0; 331#L338 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 265#L359-1 [2020-11-29 18:49:49,460 INFO L796 eck$LassoCheckResult]: Loop: 265#L359-1 assume !false; 241#L274 assume test_~splverifierCounter~0 < 4; 242#L275 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 317#L283 assume !(0 != test_~tmp~4); 302#L283-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 254#L293 assume !(0 != test_~tmp___0~1); 237#L293-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 280#L303 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 314#L311-2 havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 318#L192 __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 267#L348 assume !(0 != ~pumpRunning~0); 268#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 282#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret7, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 283#L96-1 assume !(0 != ~pumpRunning~0); 295#L71 havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 326#L966 __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 264#L359 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 265#L359-1 [2020-11-29 18:49:49,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:49,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 18:49:49,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:49,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095221026] [2020-11-29 18:49:49,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:49,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:49,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:49,662 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:49:49,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:49,663 INFO L82 PathProgramCache]: Analyzing trace with hash 363233729, now seen corresponding path program 1 times [2020-11-29 18:49:49,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:49,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627137410] [2020-11-29 18:49:49,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:49,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:49,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:49,681 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:49:49,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:49,682 INFO L82 PathProgramCache]: Analyzing trace with hash -759378629, now seen corresponding path program 1 times [2020-11-29 18:49:49,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:49,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872052468] [2020-11-29 18:49:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:49,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872052468] [2020-11-29 18:49:49,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:49:49,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:49:49,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789743331] [2020-11-29 18:49:49,896 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-29 18:49:49,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:49:49,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:49:49,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:49:49,952 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand 5 states. [2020-11-29 18:49:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:49:50,217 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2020-11-29 18:49:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:49:50,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2020-11-29 18:49:50,225 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2020-11-29 18:49:50,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2020-11-29 18:49:50,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2020-11-29 18:49:50,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2020-11-29 18:49:50,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2020-11-29 18:49:50,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:49:50,244 INFO L691 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2020-11-29 18:49:50,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2020-11-29 18:49:50,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2020-11-29 18:49:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-29 18:49:50,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2020-11-29 18:49:50,268 INFO L714 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2020-11-29 18:49:50,268 INFO L594 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2020-11-29 18:49:50,268 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:49:50,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2020-11-29 18:49:50,270 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2020-11-29 18:49:50,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:49:50,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:49:50,271 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:50,271 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:49:50,271 INFO L794 eck$LassoCheckResult]: Stem: 768#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 685#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 686#L406 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 700#L414 main_#t~ret71 := valid_product_#res;main_~tmp~9 := main_#t~ret71;havoc main_#t~ret71; 678#L877 assume 0 != main_~tmp~9; 679#L853 ~switchedOnBeforeTS~0 := 0; 786#L338 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 788#L359-1 [2020-11-29 18:49:50,272 INFO L796 eck$LassoCheckResult]: Loop: 788#L359-1 assume !false; 814#L274 assume test_~splverifierCounter~0 < 4; 760#L275 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 761#L283 assume !(0 != test_~tmp~4); 775#L283-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 694#L293 assume !(0 != test_~tmp___0~1); 677#L293-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 721#L303 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 757#L311-2 havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 762#L192 __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 842#L348 assume !(0 != ~pumpRunning~0); 841#L64 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 829#L122 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret7, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 827#L96-1 assume !(0 != ~pumpRunning~0); 821#L71 havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 820#L966 __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 819#L359 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 818#L192-1 __utac_acc__Specification5_spec__3_#t~ret34 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 817#L363 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 788#L359-1 [2020-11-29 18:49:50,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:50,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 18:49:50,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:50,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237222743] [2020-11-29 18:49:50,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:50,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:50,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:50,419 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:49:50,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:50,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1175247996, now seen corresponding path program 1 times [2020-11-29 18:49:50,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:50,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488854883] [2020-11-29 18:49:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:50,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:50,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:50,440 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:49:50,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:50,441 INFO L82 PathProgramCache]: Analyzing trace with hash 381563254, now seen corresponding path program 1 times [2020-11-29 18:49:50,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:49:50,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746724254] [2020-11-29 18:49:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:49:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:50,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:49:50,549 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:49:50,588 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:49:50,741 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-29 18:51:17,132 WARN L193 SmtUtils]: Spent 1.44 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 18:52:16,038 WARN L193 SmtUtils]: Spent 58.88 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 18:52:16,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:52:16 BoogieIcfgContainer [2020-11-29 18:52:16,325 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:52:16,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:52:16,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:52:16,326 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:52:16,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:49:48" (3/4) ... [2020-11-29 18:52:16,330 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:52:16,404 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d5998bf0-a993-4213-9166-87a4a6c48fe2/bin/uautomizer/witness.graphml [2020-11-29 18:52:16,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:52:16,406 INFO L168 Benchmark]: Toolchain (without parser) took 149759.28 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 72.1 MB in the beginning and 96.2 MB in the end (delta: -24.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:52:16,407 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 73.4 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:52:16,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.72 ms. Allocated memory is still 102.8 MB. Free memory was 72.1 MB in the beginning and 69.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:52:16,410 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.94 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 65.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:52:16,413 INFO L168 Benchmark]: Boogie Preprocessor took 70.27 ms. Allocated memory is still 102.8 MB. Free memory was 65.4 MB in the beginning and 62.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:52:16,414 INFO L168 Benchmark]: RCFGBuilder took 1170.68 ms. Allocated memory is still 102.8 MB. Free memory was 62.7 MB in the beginning and 55.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:52:16,414 INFO L168 Benchmark]: BuchiAutomizer took 147762.87 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 55.1 MB in the beginning and 99.2 MB in the end (delta: -44.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:52:16,415 INFO L168 Benchmark]: Witness Printer took 78.88 ms. Allocated memory is still 134.2 MB. Free memory was 99.2 MB in the beginning and 96.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:52:16,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 73.4 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 555.72 ms. Allocated memory is still 102.8 MB. Free memory was 72.1 MB in the beginning and 69.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.94 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 65.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.27 ms. Allocated memory is still 102.8 MB. Free memory was 65.4 MB in the beginning and 62.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1170.68 ms. Allocated memory is still 102.8 MB. Free memory was 62.7 MB in the beginning and 55.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 147762.87 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 55.1 MB in the beginning and 99.2 MB in the end (delta: -44.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 16.1 GB. * Witness Printer took 78.88 ms. Allocated memory is still 134.2 MB. Free memory was 99.2 MB in the beginning and 96.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 147.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 393 SDtfs, 695 SDslu, 468 SDs, 0 SdLazy, 100 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 273]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5493} State at position 1 is {NULL=0, NULL=0, NULL=5516, NULL=0, retValue_acc=1, NULL=5493, NULL=5506, retValue_acc=0, NULL=5509, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@85c11e8=0, NULL=5510, NULL=5513, methaneLevelCritical=0, NULL=0, tmp=0, tmp=1, NULL=0, NULL=0, NULL=5503, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3de921e9=0, NULL=0, NULL=0, NULL=5511, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=5508, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=5519, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36e264e0=0, NULL=5499, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5502, \result=1, NULL=5497, head=0, pumpRunning=0, tmp___0=0, NULL=5520, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@448e4a82=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f130a9d=0, NULL=5507, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9894bef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d335cf1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@460cafbe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2838f545=61, retValue_acc=1, NULL=5504, NULL=0, NULL=5515, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4837fcb2=0, NULL=0, NULL=5494, NULL=5496, NULL=0, NULL=5501, tmp___2=61, NULL=0, tmp___0=0, NULL=5521, splverifierCounter=0, NULL=0, NULL=0, NULL=5518, NULL=5500, NULL=5512, tmp=0, NULL=5498, head=0, retValue_acc=0, NULL=0, tmp=0, NULL=5514, NULL=0, tmp=1, NULL=0, NULL=5495, NULL=0, NULL=5517, NULL=5505} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L52] int pumpRunning = 0; [L53] int systemActive = 1; [L332] int switchedOnBeforeTS ; [L588] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L794] int cleanupTimeShifts = 4; [L891] int waterLevel = 1; [L892] int methaneLevelCritical = 0; [L868] int retValue_acc ; [L869] int tmp ; [L410] int retValue_acc ; [L413] retValue_acc = 1 [L414] return (retValue_acc); [L875] tmp = valid_product() [L877] COND TRUE \read(tmp) [L337] switchedOnBeforeTS = 0 [L264] int splverifierCounter ; [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L268] int tmp___2 ; [L271] splverifierCounter = 0 Loop: [L273] COND TRUE 1 [L275] COND TRUE splverifierCounter < 4 [L281] tmp = __VERIFIER_nondet_int() [L283] COND FALSE !(\read(tmp)) [L291] tmp___0 = __VERIFIER_nondet_int() [L293] COND FALSE !(\read(tmp___0)) [L301] tmp___2 = __VERIFIER_nondet_int() [L303] COND TRUE \read(tmp___2) [L255] systemActive = 1 [L188] int retValue_acc ; [L191] retValue_acc = pumpRunning [L192] return (retValue_acc); [L346] switchedOnBeforeTS = isPumpRunning() [L64] COND FALSE !(\read(pumpRunning)) [L71] COND TRUE \read(systemActive) [L119] int tmp ; [L122] COND FALSE !(\read(pumpRunning)) [L93] int tmp ; [L96] COND FALSE !(\read(pumpRunning)) [L352] int tmp ; [L353] int tmp___0 ; [L962] int retValue_acc ; [L965] retValue_acc = waterLevel [L966] return (retValue_acc); [L357] tmp = getWaterLevel() [L359] COND TRUE tmp != 2 [L188] int retValue_acc ; [L191] retValue_acc = pumpRunning [L192] return (retValue_acc); [L361] tmp___0 = isPumpRunning() [L363] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...