./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.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_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/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 115416f6b9263aced1374dbb9cce15bd25dca014 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:20:37,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:20:37,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:20:37,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:20:37,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:20:37,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:20:37,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:20:37,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:20:37,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:20:37,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:20:37,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:20:37,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:20:37,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:20:37,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:20:37,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:20:37,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:20:37,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:20:37,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:20:37,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:20:37,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:20:37,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:20:37,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:20:37,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:20:37,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:20:37,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:20:37,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:20:37,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:20:37,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:20:37,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:20:37,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:20:37,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:20:37,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:20:37,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:20:37,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:20:37,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:20:37,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:20:37,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:20:37,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:20:37,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:20:37,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:20:37,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:20:37,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:20:37,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:20:37,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:20:37,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:20:37,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:20:37,247 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:20:37,248 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:20:37,248 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:20:37,248 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:20:37,248 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:20:37,249 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:20:37,250 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:20:37,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:20:37,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:20:37,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:20:37,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:20:37,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:20:37,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:20:37,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:20:37,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:20:37,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:20:37,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:20:37,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:20:37,253 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:20:37,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:20:37,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:20:37,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:20:37,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:20:37,254 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:20:37,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:20:37,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:20:37,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:20:37,262 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:20:37,264 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:20:37,264 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_7dae1bc3-da51-4018-bd21-3dce05f7816a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115416f6b9263aced1374dbb9cce15bd25dca014 [2020-11-30 01:20:37,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:20:37,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:20:37,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:20:37,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:20:37,599 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:20:37,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2020-11-30 01:20:37,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/data/464e5cddf/ead03a3308124132b36a7e341dff7620/FLAG99ed92361 [2020-11-30 01:20:38,276 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:20:38,276 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2020-11-30 01:20:38,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/data/464e5cddf/ead03a3308124132b36a7e341dff7620/FLAG99ed92361 [2020-11-30 01:20:38,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/data/464e5cddf/ead03a3308124132b36a7e341dff7620 [2020-11-30 01:20:38,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:20:38,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:20:38,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:20:38,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:20:38,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:20:38,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:20:38" (1/1) ... [2020-11-30 01:20:38,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a03f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:38, skipping insertion in model container [2020-11-30 01:20:38,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:20:38" (1/1) ... [2020-11-30 01:20:38,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:20:38,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:20:39,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:20:39,056 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:20:39,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:20:39,248 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:20:39,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39 WrapperNode [2020-11-30 01:20:39,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:20:39,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:20:39,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:20:39,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:20:39,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:20:39,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:20:39,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:20:39,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:20:39,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... [2020-11-30 01:20:39,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:20:39,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:20:39,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:20:39,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:20:39,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/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 01:20:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:20:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:20:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:20:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:20:40,550 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:20:40,556 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-11-30 01:20:40,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:40 BoogieIcfgContainer [2020-11-30 01:20:40,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:20:40,560 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:20:40,561 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:20:40,564 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:20:40,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:20:40,566 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:20:38" (1/3) ... [2020-11-30 01:20:40,567 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@698496f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:20:40, skipping insertion in model container [2020-11-30 01:20:40,567 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:20:40,568 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:20:39" (2/3) ... [2020-11-30 01:20:40,569 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@698496f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:20:40, skipping insertion in model container [2020-11-30 01:20:40,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:20:40,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:40" (3/3) ... [2020-11-30 01:20:40,572 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2020-11-30 01:20:40,633 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:20:40,633 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:20:40,633 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:20:40,634 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:20:40,634 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:20:40,634 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:20:40,634 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:20:40,634 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:20:40,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-30 01:20:40,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-30 01:20:40,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:20:40,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:20:40,699 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:20:40,699 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:40,699 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:20:40,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-30 01:20:40,713 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-30 01:20:40,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:20:40,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:20:40,714 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:20:40,715 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:40,719 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 57#L565true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 59#L573true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 98#L267true assume 0 != main_~tmp~1; 53#L240true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 55#L61-1true [2020-11-30 01:20:40,720 INFO L796 eck$LassoCheckResult]: Loop: 55#L61-1true assume !false; 130#L489true assume test_~splverifierCounter~0 < 4; 89#L490true test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 99#L498true assume !(0 != test_~tmp~6); 101#L498-1true test_~tmp___0~2 := test_#t~nondet43;havoc test_#t~nondet43; 21#L508true assume !(0 != test_~tmp___0~2); 24#L508-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 60#L518true assume 0 != test_~tmp___2~0; 46#L524-2true assume !(0 != ~pumpRunning~0); 51#L290true assume !(0 != ~systemActive~0); 90#L297true havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 11#L128-3true __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 100#L55true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 55#L61-1true [2020-11-30 01:20:40,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:40,726 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:20:40,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:40,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956187484] [2020-11-30 01:20:40,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:41,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:41,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:41,294 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:20:41,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:41,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1679313419, now seen corresponding path program 1 times [2020-11-30 01:20:41,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:41,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021274222] [2020-11-30 01:20:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:41,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:41,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:41,330 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:20:41,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:41,339 INFO L82 PathProgramCache]: Analyzing trace with hash 34965519, now seen corresponding path program 1 times [2020-11-30 01:20:41,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:41,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390469716] [2020-11-30 01:20:41,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:41,544 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 01:20:41,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390469716] [2020-11-30 01:20:41,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:20:41,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:20:41,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15681118] [2020-11-30 01:20:41,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:41,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:20:41,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:20:41,680 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 6 states. [2020-11-30 01:20:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:41,997 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2020-11-30 01:20:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:20:41,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 187 transitions. [2020-11-30 01:20:42,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-30 01:20:42,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2020-11-30 01:20:42,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-30 01:20:42,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-30 01:20:42,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2020-11-30 01:20:42,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:20:42,023 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-30 01:20:42,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2020-11-30 01:20:42,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-30 01:20:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-30 01:20:42,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2020-11-30 01:20:42,068 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-30 01:20:42,068 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-30 01:20:42,068 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:20:42,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2020-11-30 01:20:42,071 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-30 01:20:42,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:20:42,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:20:42,079 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:20:42,079 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:42,079 INFO L794 eck$LassoCheckResult]: Stem: 391#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 305#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 306#L565 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 362#L573 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 363#L267 assume 0 != main_~tmp~1; 354#L240 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 315#L61-1 [2020-11-30 01:20:42,080 INFO L796 eck$LassoCheckResult]: Loop: 315#L61-1 assume !false; 357#L489 assume test_~splverifierCounter~0 < 4; 387#L490 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 388#L498 assume !(0 != test_~tmp~6); 332#L498-1 test_~tmp___0~2 := test_#t~nondet43;havoc test_#t~nondet43; 318#L508 assume !(0 != test_~tmp___0~2); 319#L508-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 322#L518 assume 0 != test_~tmp___2~0; 347#L524-2 assume !(0 != ~pumpRunning~0); 348#L290 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 338#L348 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret21, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 339#L322-1 assume !(0 == ~pumpRunning~0); 309#L297 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 301#L128-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 302#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 315#L61-1 [2020-11-30 01:20:42,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:42,080 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:20:42,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:42,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043226358] [2020-11-30 01:20:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:42,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:42,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:42,275 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:20:42,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:42,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1992761193, now seen corresponding path program 1 times [2020-11-30 01:20:42,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:42,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721033036] [2020-11-30 01:20:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:42,305 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 01:20:42,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721033036] [2020-11-30 01:20:42,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:20:42,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:20:42,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086857152] [2020-11-30 01:20:42,307 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:20:42,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:42,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:20:42,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:20:42,308 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 Second operand 3 states. [2020-11-30 01:20:42,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:42,514 INFO L93 Difference]: Finished difference Result 172 states and 237 transitions. [2020-11-30 01:20:42,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:20:42,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 172 states and 237 transitions. [2020-11-30 01:20:42,518 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2020-11-30 01:20:42,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 172 states to 172 states and 237 transitions. [2020-11-30 01:20:42,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 172 [2020-11-30 01:20:42,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 172 [2020-11-30 01:20:42,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 172 states and 237 transitions. [2020-11-30 01:20:42,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:20:42,523 INFO L691 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2020-11-30 01:20:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states and 237 transitions. [2020-11-30 01:20:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-11-30 01:20:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-30 01:20:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 237 transitions. [2020-11-30 01:20:42,550 INFO L714 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2020-11-30 01:20:42,551 INFO L594 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2020-11-30 01:20:42,551 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:20:42,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 172 states and 237 transitions. [2020-11-30 01:20:42,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2020-11-30 01:20:42,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:20:42,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:20:42,554 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:20:42,554 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:42,554 INFO L794 eck$LassoCheckResult]: Stem: 700#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 609#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 610#L565 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 666#L573 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 667#L267 assume 0 != main_~tmp~1; 658#L240 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 620#L61-1 [2020-11-30 01:20:42,555 INFO L796 eck$LassoCheckResult]: Loop: 620#L61-1 assume !false; 661#L489 assume test_~splverifierCounter~0 < 4; 696#L490 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 697#L498 assume !(0 != test_~tmp~6); 638#L498-1 test_~tmp___0~2 := test_#t~nondet43;havoc test_#t~nondet43; 621#L508 assume !(0 != test_~tmp___0~2); 622#L508-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 630#L518 assume 0 != test_~tmp___2~0; 653#L524-2 assume !(0 != ~pumpRunning~0); 654#L290 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 644#L348 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret21, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 645#L322-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret41, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 676#L168-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 677#L173-1 isHighWaterLevel_#t~ret41 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret41;havoc isHighWaterLevel_#t~ret41; 714#L467-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 718#L467-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 703#L473-1 processEnvironment__wrappee__methaneQuery_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~2 := processEnvironment__wrappee__methaneQuery_#t~ret21;havoc processEnvironment__wrappee__methaneQuery_#t~ret21; 649#L326-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2); 615#L297 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 605#L128-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 606#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 620#L61-1 [2020-11-30 01:20:42,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:42,555 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:20:42,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:42,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623796197] [2020-11-30 01:20:42,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:42,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:42,720 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:42,741 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:20:42,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:42,742 INFO L82 PathProgramCache]: Analyzing trace with hash 790147587, now seen corresponding path program 1 times [2020-11-30 01:20:42,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:42,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532291372] [2020-11-30 01:20:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:42,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:42,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:42,779 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:20:42,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:42,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1246218781, now seen corresponding path program 1 times [2020-11-30 01:20:42,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:42,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543913911] [2020-11-30 01:20:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:20:42,892 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 01:20:42,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543913911] [2020-11-30 01:20:42,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:20:42,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:20:42,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575534354] [2020-11-30 01:20:43,030 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-11-30 01:20:43,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:20:43,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:20:43,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:20:43,098 INFO L87 Difference]: Start difference. First operand 172 states and 237 transitions. cyclomatic complexity: 67 Second operand 5 states. [2020-11-30 01:20:43,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:20:43,432 INFO L93 Difference]: Finished difference Result 574 states and 794 transitions. [2020-11-30 01:20:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:20:43,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 574 states and 794 transitions. [2020-11-30 01:20:43,440 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 411 [2020-11-30 01:20:43,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 574 states to 574 states and 794 transitions. [2020-11-30 01:20:43,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 574 [2020-11-30 01:20:43,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 574 [2020-11-30 01:20:43,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 574 states and 794 transitions. [2020-11-30 01:20:43,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:20:43,465 INFO L691 BuchiCegarLoop]: Abstraction has 574 states and 794 transitions. [2020-11-30 01:20:43,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states and 794 transitions. [2020-11-30 01:20:43,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 338. [2020-11-30 01:20:43,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-30 01:20:43,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 460 transitions. [2020-11-30 01:20:43,514 INFO L714 BuchiCegarLoop]: Abstraction has 338 states and 460 transitions. [2020-11-30 01:20:43,514 INFO L594 BuchiCegarLoop]: Abstraction has 338 states and 460 transitions. [2020-11-30 01:20:43,514 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 01:20:43,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 460 transitions. [2020-11-30 01:20:43,518 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 236 [2020-11-30 01:20:43,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:20:43,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:20:43,521 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:20:43,521 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:20:43,522 INFO L794 eck$LassoCheckResult]: Stem: 1471#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1375#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 1376#L565 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1432#L573 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 1433#L267 assume 0 != main_~tmp~1; 1424#L240 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1384#L61-1 [2020-11-30 01:20:43,522 INFO L796 eck$LassoCheckResult]: Loop: 1384#L61-1 assume !false; 1427#L489 assume test_~splverifierCounter~0 < 4; 1467#L490 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 1468#L498 assume !(0 != test_~tmp~6); 1404#L498-1 test_~tmp___0~2 := test_#t~nondet43;havoc test_#t~nondet43; 1473#L508 assume !(0 != test_~tmp___0~2); 1686#L508-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 1685#L518 assume 0 != test_~tmp___2~0; 1683#L524-2 assume !(0 != ~pumpRunning~0); 1661#L290 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1680#L348 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret21, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 1623#L322-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret41, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1667#L168-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1666#L173-1 isHighWaterLevel_#t~ret41 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret41;havoc isHighWaterLevel_#t~ret41; 1664#L467-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1657#L467-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1476#L473-1 processEnvironment__wrappee__methaneQuery_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~2 := processEnvironment__wrappee__methaneQuery_#t~ret21;havoc processEnvironment__wrappee__methaneQuery_#t~ret21; 1477#L326-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2); 1465#L297 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1466#L128-3 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 1472#L55 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);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; 1452#L160 __utac_acc__Specification3_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 1428#L61 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1384#L61-1 [2020-11-30 01:20:43,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:43,523 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-11-30 01:20:43,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:43,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925698833] [2020-11-30 01:20:43,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:43,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:43,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:43,649 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:20:43,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:43,650 INFO L82 PathProgramCache]: Analyzing trace with hash -877371913, now seen corresponding path program 1 times [2020-11-30 01:20:43,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:43,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228859597] [2020-11-30 01:20:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:43,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:43,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:43,675 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:20:43,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:20:43,676 INFO L82 PathProgramCache]: Analyzing trace with hash -679618671, now seen corresponding path program 1 times [2020-11-30 01:20:43,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:20:43,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995708822] [2020-11-30 01:20:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:20:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:43,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:20:43,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:20:43,796 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:20:44,037 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-11-30 01:20:44,150 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-11-30 01:22:02,292 WARN L193 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:22:58,252 WARN L193 SmtUtils]: Spent 55.94 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:22:58,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:22:58 BoogieIcfgContainer [2020-11-30 01:22:58,439 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:22:58,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:22:58,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:22:58,440 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:22:58,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:20:40" (3/4) ... [2020-11-30 01:22:58,443 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:22:58,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7dae1bc3-da51-4018-bd21-3dce05f7816a/bin/uautomizer/witness.graphml [2020-11-30 01:22:58,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:22:58,525 INFO L168 Benchmark]: Toolchain (without parser) took 139965.82 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 76.2 MB in the beginning and 109.1 MB in the end (delta: -33.0 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:58,525 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory was 37.1 MB in the beginning and 37.1 MB in the end (delta: 34.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:22:58,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.72 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 73.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:58,526 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.42 ms. Allocated memory is still 107.0 MB. Free memory was 73.7 MB in the beginning and 70.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:58,527 INFO L168 Benchmark]: Boogie Preprocessor took 83.32 ms. Allocated memory is still 107.0 MB. Free memory was 70.1 MB in the beginning and 67.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:58,527 INFO L168 Benchmark]: RCFGBuilder took 1135.01 ms. Allocated memory is still 107.0 MB. Free memory was 67.0 MB in the beginning and 52.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:58,528 INFO L168 Benchmark]: BuchiAutomizer took 137878.29 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 52.3 MB in the beginning and 112.1 MB in the end (delta: -59.8 MB). Peak memory consumption was 67.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:58,528 INFO L168 Benchmark]: Witness Printer took 84.11 ms. Allocated memory is still 157.3 MB. Free memory was 112.1 MB in the beginning and 109.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:58,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory was 37.1 MB in the beginning and 37.1 MB in the end (delta: 34.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 684.72 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 73.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.42 ms. Allocated memory is still 107.0 MB. Free memory was 73.7 MB in the beginning and 70.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.32 ms. Allocated memory is still 107.0 MB. Free memory was 70.1 MB in the beginning and 67.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1135.01 ms. Allocated memory is still 107.0 MB. Free memory was 67.0 MB in the beginning and 52.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 137878.29 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 52.3 MB in the beginning and 112.1 MB in the end (delta: -59.8 MB). Peak memory consumption was 67.5 MB. Max. memory is 16.1 GB. * Witness Printer took 84.11 ms. Allocated memory is still 157.3 MB. Free memory was 112.1 MB in the beginning and 109.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 338 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 137.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 136.5s. Construction of modules took 0.5s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 236 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 338 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 590 SDtfs, 1376 SDslu, 823 SDs, 0 SdLazy, 169 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 488]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11783} State at position 1 is {NULL=0, NULL=11783, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ace03fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f6ba573=64, NULL=11786, NULL=11785, methaneLevelCritical=0, NULL=0, tmp=0, NULL=11788, NULL=0, tmp___1=0, retValue_acc=0, NULL=0, NULL=11799, tmp=0, cleanupTimeShifts=4, NULL=11806, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@562f042a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49850866=0, waterLevel=1, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=11794, NULL=0, tmp=1, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, NULL=0, NULL=11796, NULL=0, NULL=0, NULL=0, tmp___0=0, tmp=1, NULL=11805, NULL=11784, NULL=11793, tmp=0, head=0, NULL=0, NULL=0, NULL=11812, NULL=11809, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fb87249=0, tmp=0, NULL=11808, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@688d1aaf=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4925d12c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20aade8d=0, NULL=11800, tmp___0=0, NULL=0, NULL=0, NULL=11790, NULL=0, NULL=0, tmp___0=1, NULL=11803, NULL=11804, NULL=0, systemActive=1, NULL=11801, \result=1, NULL=0, \result=0, NULL=11807, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a462706=0, \result=0, NULL=0, NULL=11797, NULL=0, NULL=0, NULL=11792, retValue_acc=1, NULL=11787, NULL=11791, tmp___2=64, splverifierCounter=0, NULL=0, \result=0, NULL=11789, NULL=11795, tmp___1=0, NULL=11810, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21acb81=0, NULL=11802, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@721fc7d1=0, NULL=0, NULL=11798} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L283] int pumpRunning = 0; [L284] int systemActive = 1; [L756] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L258] int retValue_acc ; [L259] int tmp ; [L569] int retValue_acc ; [L572] retValue_acc = 1 [L573] return (retValue_acc); [L265] tmp = valid_product() [L267] COND TRUE \read(tmp) [L479] int splverifierCounter ; [L480] int tmp ; [L481] int tmp___0 ; [L482] int tmp___1 ; [L483] int tmp___2 ; [L486] splverifierCounter = 0 Loop: [L488] COND TRUE 1 [L490] COND TRUE splverifierCounter < 4 [L496] tmp = __VERIFIER_nondet_int() [L498] COND FALSE !(\read(tmp)) [L506] tmp___0 = __VERIFIER_nondet_int() [L508] COND FALSE !(\read(tmp___0)) [L516] tmp___2 = __VERIFIER_nondet_int() [L518] COND TRUE \read(tmp___2) [L290] COND FALSE !(\read(pumpRunning)) [L297] COND TRUE \read(systemActive) [L345] int tmp ; [L348] COND FALSE !(\read(pumpRunning)) [L319] int tmp ; [L322] COND TRUE ! pumpRunning [L459] int retValue_acc ; [L460] int tmp ; [L461] int tmp___0 ; [L165] int retValue_acc ; [L168] COND TRUE waterLevel < 2 [L169] retValue_acc = 1 [L170] return (retValue_acc); [L465] tmp = isHighWaterSensorDry() [L467] COND TRUE \read(tmp) [L468] tmp___0 = 0 [L472] retValue_acc = tmp___0 [L473] return (retValue_acc); [L324] tmp = isHighWaterLevel() [L326] COND FALSE !(\read(tmp)) [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L59] tmp___0 = getWaterLevel() [L61] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...