./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/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 aa2e4c647ac78678e11a6f8d79cd56fa06ee0dfe ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-69874e2 [2020-12-01 15:24:47,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:24:47,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:24:47,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:24:47,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:24:47,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:24:47,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:24:47,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:24:47,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:24:47,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:24:47,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:24:47,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:24:47,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:24:47,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:24:47,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:24:47,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:24:47,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:24:47,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:24:47,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:24:47,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:24:47,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:24:47,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:24:47,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:24:47,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:24:47,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:24:47,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:24:47,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:24:47,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:24:47,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:24:47,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:24:47,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:24:47,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:24:47,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:24:47,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:24:47,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:24:47,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:24:47,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:24:47,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:24:47,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:24:47,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:24:47,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:24:47,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:24:47,620 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:24:47,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:24:47,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:24:47,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:24:47,622 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:24:47,623 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:24:47,623 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:24:47,623 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:24:47,623 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:24:47,624 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:24:47,624 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:24:47,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:24:47,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:24:47,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:24:47,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:24:47,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:24:47,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:24:47,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:24:47,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:24:47,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:24:47,629 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:24:47,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:24:47,630 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:24:47,631 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:24:47,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:24:47,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:24:47,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:24:47,632 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:24:47,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:24:47,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:24:47,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:24:47,636 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:24:47,637 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:24:47,637 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_5ba1181b-afa8-45bc-a888-bc5fb8403105/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa2e4c647ac78678e11a6f8d79cd56fa06ee0dfe [2020-12-01 15:24:47,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:24:47,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:24:47,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:24:48,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:24:48,002 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:24:48,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2020-12-01 15:24:48,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/data/164abb848/47b202e4baa44b01b2f320fc4890063d/FLAGdbd11588e [2020-12-01 15:24:48,913 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:24:48,914 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2020-12-01 15:24:48,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/data/164abb848/47b202e4baa44b01b2f320fc4890063d/FLAGdbd11588e [2020-12-01 15:24:49,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/data/164abb848/47b202e4baa44b01b2f320fc4890063d [2020-12-01 15:24:49,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:24:49,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:24:49,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:24:49,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:24:49,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:24:49,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:49,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502ef45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49, skipping insertion in model container [2020-12-01 15:24:49,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:49,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:24:49,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:24:49,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:24:49,630 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:24:49,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:24:49,836 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:24:49,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49 WrapperNode [2020-12-01 15:24:49,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:24:49,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:24:49,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:24:49,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:24:49,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:49,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:49,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:24:49,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:24:49,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:24:49,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:24:49,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:49,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:49,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:49,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:50,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:50,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:50,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... [2020-12-01 15:24:50,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:24:50,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:24:50,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:24:50,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:24:50,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/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 [2020-12-01 15:24:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:24:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:24:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:24:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:24:51,479 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:24:51,481 INFO L298 CfgBuilder]: Removed 214 assume(true) statements. [2020-12-01 15:24:51,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:51 BoogieIcfgContainer [2020-12-01 15:24:51,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:24:51,487 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:24:51,487 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:24:51,494 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:24:51,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:51,495 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:24:49" (1/3) ... [2020-12-01 15:24:51,497 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f8f63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:24:51, skipping insertion in model container [2020-12-01 15:24:51,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:51,497 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:49" (2/3) ... [2020-12-01 15:24:51,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f8f63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:24:51, skipping insertion in model container [2020-12-01 15:24:51,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:51,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:51" (3/3) ... [2020-12-01 15:24:51,501 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2020-12-01 15:24:51,574 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:24:51,574 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:24:51,574 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:24:51,574 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:24:51,574 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:24:51,575 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:24:51,575 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:24:51,575 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:24:51,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states. [2020-12-01 15:24:51,632 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2020-12-01 15:24:51,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:51,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:51,644 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:51,645 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:51,645 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:24:51,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states. [2020-12-01 15:24:51,675 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2020-12-01 15:24:51,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:51,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:51,677 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:51,678 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:51,685 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 11#L-1true havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 65#L1000true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 82#L1008true main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 37#L659true assume 0 != main_~tmp~4; 74#L631true ~switchedOnBeforeTS~0 := 0; 41#L161true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 89#L182-1true [2020-12-01 15:24:51,686 INFO L796 eck$LassoCheckResult]: Loop: 89#L182-1true assume !false; 85#L694true assume test_~splverifierCounter~0 < 4; 26#L695true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 60#L703true assume !(0 != test_~tmp~5); 36#L703-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 87#L713true assume !(0 != test_~tmp___0~1); 90#L713-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 136#L723true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 5#L731-2true havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 141#L891true __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 91#L171true assume !(0 != ~pumpRunning~0); 127#L762true assume !(0 != ~systemActive~0); 56#L769true havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 32#L125true __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 92#L182true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 89#L182-1true [2020-12-01 15:24:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:51,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-12-01 15:24:51,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:51,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922931718] [2020-12-01 15:24:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:52,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:52,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:52,337 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:52,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:52,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1013869903, now seen corresponding path program 1 times [2020-12-01 15:24:52,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:52,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224146223] [2020-12-01 15:24:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:52,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224146223] [2020-12-01 15:24:52,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:52,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:24:52,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212257174] [2020-12-01 15:24:52,472 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:24:52,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:52,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:24:52,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:24:52,493 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 3 states. [2020-12-01 15:24:52,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:52,575 INFO L93 Difference]: Finished difference Result 141 states and 200 transitions. [2020-12-01 15:24:52,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:24:52,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 200 transitions. [2020-12-01 15:24:52,593 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-12-01 15:24:52,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 134 states and 192 transitions. [2020-12-01 15:24:52,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2020-12-01 15:24:52,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2020-12-01 15:24:52,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 192 transitions. [2020-12-01 15:24:52,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:52,612 INFO L692 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2020-12-01 15:24:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 192 transitions. [2020-12-01 15:24:52,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-12-01 15:24:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-12-01 15:24:52,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2020-12-01 15:24:52,660 INFO L715 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2020-12-01 15:24:52,660 INFO L595 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2020-12-01 15:24:52,660 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:24:52,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 192 transitions. [2020-12-01 15:24:52,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-12-01 15:24:52,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:52,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:52,666 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:52,666 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:52,666 INFO L794 eck$LassoCheckResult]: Stem: 411#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 310#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 311#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 383#L1008 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 361#L659 assume 0 != main_~tmp~4; 362#L631 ~switchedOnBeforeTS~0 := 0; 367#L161 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 301#L182-1 [2020-12-01 15:24:52,667 INFO L796 eck$LassoCheckResult]: Loop: 301#L182-1 assume !false; 398#L694 assume test_~splverifierCounter~0 < 4; 341#L695 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 342#L703 assume !(0 != test_~tmp~5); 359#L703-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 360#L713 assume !(0 != test_~tmp___0~1); 397#L713-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 400#L723 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 298#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 299#L891 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 401#L171 assume !(0 != ~pumpRunning~0); 387#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 405#L820 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 329#L794-1 assume !(0 == ~pumpRunning~0); 331#L769 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 354#L125 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 355#L182 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 301#L182-1 [2020-12-01 15:24:52,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:52,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-12-01 15:24:52,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:52,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086170644] [2020-12-01 15:24:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:52,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:52,832 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:52,871 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:52,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:52,878 INFO L82 PathProgramCache]: Analyzing trace with hash 385675288, now seen corresponding path program 1 times [2020-12-01 15:24:52,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:52,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706945115] [2020-12-01 15:24:52,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:52,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706945115] [2020-12-01 15:24:52,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:52,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:24:52,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552824556] [2020-12-01 15:24:52,921 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:24:52,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:52,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:24:52,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:24:52,924 INFO L87 Difference]: Start difference. First operand 134 states and 192 transitions. cyclomatic complexity: 60 Second operand 3 states. [2020-12-01 15:24:53,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:53,178 INFO L93 Difference]: Finished difference Result 183 states and 251 transitions. [2020-12-01 15:24:53,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:24:53,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 251 transitions. [2020-12-01 15:24:53,184 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-12-01 15:24:53,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 251 transitions. [2020-12-01 15:24:53,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2020-12-01 15:24:53,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2020-12-01 15:24:53,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 251 transitions. [2020-12-01 15:24:53,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:53,204 INFO L692 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2020-12-01 15:24:53,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 251 transitions. [2020-12-01 15:24:53,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2020-12-01 15:24:53,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-12-01 15:24:53,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 251 transitions. [2020-12-01 15:24:53,219 INFO L715 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2020-12-01 15:24:53,220 INFO L595 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2020-12-01 15:24:53,220 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:24:53,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 251 transitions. [2020-12-01 15:24:53,223 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-12-01 15:24:53,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:53,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:53,225 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:53,225 INFO L854 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] [2020-12-01 15:24:53,225 INFO L794 eck$LassoCheckResult]: Stem: 740#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 633#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 634#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 709#L1008 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 683#L659 assume 0 != main_~tmp~4; 684#L631 ~switchedOnBeforeTS~0 := 0; 690#L161 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 622#L182-1 [2020-12-01 15:24:53,225 INFO L796 eck$LassoCheckResult]: Loop: 622#L182-1 assume !false; 725#L694 assume test_~splverifierCounter~0 < 4; 663#L695 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 664#L703 assume !(0 != test_~tmp~5); 681#L703-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 682#L713 assume !(0 != test_~tmp___0~1); 724#L713-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 728#L723 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 624#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 625#L891 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 729#L171 assume !(0 != ~pumpRunning~0); 730#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 734#L820 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 652#L794-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret80, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 653#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 715#L138-1 isHighWaterLevel_#t~ret80 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret80;havoc isHighWaterLevel_#t~ret80; 635#L940-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 636#L940-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 640#L946-1 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 741#L798-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 702#L769 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 676#L125 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 677#L182 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 622#L182-1 [2020-12-01 15:24:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:53,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-12-01 15:24:53,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:53,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546838599] [2020-12-01 15:24:53,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,420 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:53,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:53,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1093023172, now seen corresponding path program 1 times [2020-12-01 15:24:53,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:53,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435364689] [2020-12-01 15:24:53,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:53,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435364689] [2020-12-01 15:24:53,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:53,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:24:53,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226481193] [2020-12-01 15:24:53,485 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:24:53,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:53,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:24:53,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:24:53,491 INFO L87 Difference]: Start difference. First operand 183 states and 251 transitions. cyclomatic complexity: 70 Second operand 5 states. [2020-12-01 15:24:53,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:53,808 INFO L93 Difference]: Finished difference Result 517 states and 697 transitions. [2020-12-01 15:24:53,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:24:53,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 517 states and 697 transitions. [2020-12-01 15:24:53,822 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2020-12-01 15:24:53,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 517 states to 517 states and 697 transitions. [2020-12-01 15:24:53,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 517 [2020-12-01 15:24:53,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 517 [2020-12-01 15:24:53,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 517 states and 697 transitions. [2020-12-01 15:24:53,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:53,837 INFO L692 BuchiCegarLoop]: Abstraction has 517 states and 697 transitions. [2020-12-01 15:24:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states and 697 transitions. [2020-12-01 15:24:53,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 359. [2020-12-01 15:24:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-12-01 15:24:53,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 481 transitions. [2020-12-01 15:24:53,882 INFO L715 BuchiCegarLoop]: Abstraction has 359 states and 481 transitions. [2020-12-01 15:24:53,882 INFO L595 BuchiCegarLoop]: Abstraction has 359 states and 481 transitions. [2020-12-01 15:24:53,882 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:24:53,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 359 states and 481 transitions. [2020-12-01 15:24:53,886 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2020-12-01 15:24:53,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:53,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:53,888 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:53,888 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:53,888 INFO L794 eck$LassoCheckResult]: Stem: 1456#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1349#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 1350#L1000 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1425#L1008 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 1401#L659 assume 0 != main_~tmp~4; 1402#L631 ~switchedOnBeforeTS~0 := 0; 1406#L161 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1340#L182-1 [2020-12-01 15:24:53,889 INFO L796 eck$LassoCheckResult]: Loop: 1340#L182-1 assume !false; 1441#L694 assume test_~splverifierCounter~0 < 4; 1381#L695 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 1382#L703 assume !(0 != test_~tmp~5); 1397#L703-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 1398#L713 assume !(0 != test_~tmp___0~1); 1440#L713-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 1446#L723 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1337#L731-2 havoc __utac_acc__Specification5_spec__2_#t~ret17;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1338#L891 __utac_acc__Specification5_spec__2_#t~ret17 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17;havoc __utac_acc__Specification5_spec__2_#t~ret17; 1444#L171 assume !(0 != ~pumpRunning~0); 1445#L762 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1450#L820 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1366#L794-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret80, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1367#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1431#L138-1 isHighWaterLevel_#t~ret80 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret80;havoc isHighWaterLevel_#t~ret80; 1351#L940-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1352#L940-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1356#L946-1 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 1457#L798-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1418#L769 havoc __utac_acc__Specification5_spec__3_#t~ret18, __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 1392#L125 __utac_acc__Specification5_spec__3_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret18;havoc __utac_acc__Specification5_spec__3_#t~ret18; 1393#L182 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1447#L891-1 __utac_acc__Specification5_spec__3_#t~ret19 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 1339#L186 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1340#L182-1 [2020-12-01 15:24:53,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:53,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-12-01 15:24:53,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:53,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180655825] [2020-12-01 15:24:53,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:54,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:54,045 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:54,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1871732577, now seen corresponding path program 1 times [2020-12-01 15:24:54,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:54,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272244241] [2020-12-01 15:24:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:54,057 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:54,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:54,071 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:54,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:54,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1935158759, now seen corresponding path program 1 times [2020-12-01 15:24:54,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:54,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077137321] [2020-12-01 15:24:54,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:54,154 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:54,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:54,242 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:54,506 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-12-01 15:26:27,607 WARN L197 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-12-01 15:27:30,458 WARN L197 SmtUtils]: Spent 1.05 m on a formula simplification that was a NOOP. DAG size: 435 [2020-12-01 15:27:30,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:27:30 BoogieIcfgContainer [2020-12-01 15:27:30,771 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:27:30,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:27:30,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:27:30,772 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:27:30,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:51" (3/4) ... [2020-12-01 15:27:30,777 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:27:30,869 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5ba1181b-afa8-45bc-a888-bc5fb8403105/bin/uautomizer/witness.graphml [2020-12-01 15:27:30,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:27:30,871 INFO L168 Benchmark]: Toolchain (without parser) took 161770.77 ms. Allocated memory was 111.1 MB in the beginning and 184.5 MB in the end (delta: 73.4 MB). Free memory was 77.9 MB in the beginning and 135.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:30,872 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 75.5 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:27:30,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.42 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 76.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:30,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.60 ms. Allocated memory is still 111.1 MB. Free memory was 76.2 MB in the beginning and 72.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:30,874 INFO L168 Benchmark]: Boogie Preprocessor took 100.86 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 69.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:30,875 INFO L168 Benchmark]: RCFGBuilder took 1421.82 ms. Allocated memory is still 111.1 MB. Free memory was 69.4 MB in the beginning and 51.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:30,876 INFO L168 Benchmark]: BuchiAutomizer took 159284.52 ms. Allocated memory was 111.1 MB in the beginning and 184.5 MB in the end (delta: 73.4 MB). Free memory was 51.7 MB in the beginning and 137.9 MB in the end (delta: -86.2 MB). Peak memory consumption was 79.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:30,877 INFO L168 Benchmark]: Witness Printer took 97.66 ms. Allocated memory is still 184.5 MB. Free memory was 137.9 MB in the beginning and 135.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:30,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 75.5 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 734.42 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 76.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.60 ms. Allocated memory is still 111.1 MB. Free memory was 76.2 MB in the beginning and 72.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.86 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 69.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1421.82 ms. Allocated memory is still 111.1 MB. Free memory was 69.4 MB in the beginning and 51.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 159284.52 ms. Allocated memory was 111.1 MB in the beginning and 184.5 MB in the end (delta: 73.4 MB). Free memory was 51.7 MB in the beginning and 137.9 MB in the end (delta: -86.2 MB). Peak memory consumption was 79.6 MB. Max. memory is 16.1 GB. * Witness Printer took 97.66 ms. Allocated memory is still 184.5 MB. Free memory was 137.9 MB in the beginning and 135.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 359 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 159.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 158.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 158 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 359 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 655 SDtfs, 972 SDslu, 670 SDs, 0 SdLazy, 137 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 693]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10720} State at position 1 is {NULL=0, NULL=10733, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27174df7=0, NULL=10720, NULL=10727, NULL=0, NULL=0, NULL=10721, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cd72e5b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1390ed25=0, tmp=0, NULL=0, tmp___1=0, NULL=0, NULL=10740, cleanupTimeShifts=4, NULL=10732, NULL=10745, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=10724, retValue_acc=0, NULL=0, NULL=0, tmp___0=0, tmp=1, NULL=10725, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@777dd9ba=0, tmp=0, NULL=0, NULL=10728, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d179776=0, NULL=0, NULL=0, retValue_acc=0, NULL=10735, NULL=0, NULL=10737, tmp___0=0, NULL=0, NULL=0, NULL=10744, tmp=1, NULL=0, NULL=0, switchedOnBeforeTS=0, NULL=10743, tmp=0, \result=0, NULL=0, systemActive=1, NULL=10722, \result=1, NULL=0, NULL=10738, \result=0, NULL=0, NULL=10747, NULL=0, NULL=0, NULL=10742, tmp___0=0, NULL=10736, \result=0, NULL=10730, NULL=0, NULL=0, NULL=10748, NULL=10726, NULL=10723, NULL=10741, tmp___2=76, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f3d74e5=0, NULL=10739, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51b060be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@505aefff=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bde0551=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f4593de=0, NULL=10746, NULL=10734, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14718835=0, NULL=0, NULL=10729, NULL=10731} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L155] int switchedOnBeforeTS ; [L373] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L570] int cleanupTimeShifts = 4; [L752] int pumpRunning = 0; [L753] int systemActive = 1; [L650] int retValue_acc ; [L651] int tmp ; [L1004] int retValue_acc ; [L1007] retValue_acc = 1 [L1008] return (retValue_acc); [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L160] switchedOnBeforeTS = 0 [L684] int splverifierCounter ; [L685] int tmp ; [L686] int tmp___0 ; [L687] int tmp___1 ; [L688] int tmp___2 ; [L691] splverifierCounter = 0 Loop: [L693] COND TRUE 1 [L695] COND TRUE splverifierCounter < 4 [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND TRUE \read(tmp___2) [L973] systemActive = 1 [L887] int retValue_acc ; [L890] retValue_acc = pumpRunning [L891] return (retValue_acc); [L169] switchedOnBeforeTS = isPumpRunning() [L762] COND FALSE !(\read(pumpRunning)) [L769] COND TRUE \read(systemActive) [L817] int tmp ; [L820] COND FALSE !(\read(pumpRunning)) [L791] int tmp ; [L794] COND TRUE ! pumpRunning [L932] int retValue_acc ; [L933] int tmp ; [L934] int tmp___0 ; [L130] int retValue_acc ; [L133] COND TRUE waterLevel < 2 [L134] retValue_acc = 1 [L135] return (retValue_acc); [L938] tmp = isHighWaterSensorDry() [L940] COND TRUE \read(tmp) [L941] tmp___0 = 0 [L945] retValue_acc = tmp___0 [L946] return (retValue_acc); [L796] tmp = isHighWaterLevel() [L798] COND FALSE !(\read(tmp)) [L175] int tmp ; [L176] int tmp___0 ; [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); [L180] tmp = getWaterLevel() [L182] COND TRUE tmp != 2 [L887] int retValue_acc ; [L890] retValue_acc = pumpRunning [L891] return (retValue_acc); [L184] tmp___0 = isPumpRunning() [L186] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...