./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/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 35fb3393fa21a73dc044cf8f864a9671eb135aae ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:58:21,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:58:21,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:58:21,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:58:21,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:58:21,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:58:21,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:58:21,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:58:21,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:58:21,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:58:21,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:58:21,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:58:21,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:58:21,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:58:21,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:58:21,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:58:21,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:58:21,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:58:21,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:58:21,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:58:21,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:58:21,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:58:21,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:58:21,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:58:21,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:58:21,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:58:21,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:58:21,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:58:21,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:58:21,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:58:21,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:58:21,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:58:21,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:58:21,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:58:21,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:58:21,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:58:21,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:58:21,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:58:21,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:58:21,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:58:21,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:58:21,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:58:21,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:58:21,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:58:21,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:58:21,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:58:21,767 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:58:21,767 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:58:21,768 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:58:21,768 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:58:21,768 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:58:21,768 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:58:21,769 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:58:21,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:58:21,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:58:21,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:58:21,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:58:21,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:58:21,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:58:21,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:58:21,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:58:21,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:58:21,771 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:58:21,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:58:21,772 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:58:21,772 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:58:21,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:58:21,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:58:21,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:58:21,773 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:58:21,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:58:21,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:58:21,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:58:21,775 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:58:21,776 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:58:21,777 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_776ab273-900b-4add-8293-c07b017031e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35fb3393fa21a73dc044cf8f864a9671eb135aae [2020-11-30 00:58:22,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:58:22,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:58:22,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:58:22,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:58:22,069 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:58:22,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2020-11-30 00:58:22,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/data/542b2b537/e024ce913e9d4749abe4f3510c505771/FLAG6f7ec96e2 [2020-11-30 00:58:22,673 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:58:22,674 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2020-11-30 00:58:22,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/data/542b2b537/e024ce913e9d4749abe4f3510c505771/FLAG6f7ec96e2 [2020-11-30 00:58:22,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/data/542b2b537/e024ce913e9d4749abe4f3510c505771 [2020-11-30 00:58:22,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:58:22,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:58:23,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:23,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:58:23,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:58:23,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:22" (1/1) ... [2020-11-30 00:58:23,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2faad53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23, skipping insertion in model container [2020-11-30 00:58:23,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:22" (1/1) ... [2020-11-30 00:58:23,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:58:23,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:23,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:23,462 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:58:23,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:23,578 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:58:23,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23 WrapperNode [2020-11-30 00:58:23,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:23,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:23,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:58:23,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:58:23,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:23,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:58:23,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:58:23,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:58:23,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... [2020-11-30 00:58:23,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:58:23,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:58:23,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:58:23,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:58:23,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:58:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:58:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:58:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:58:23,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:58:24,962 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:58:24,962 INFO L298 CfgBuilder]: Removed 218 assume(true) statements. [2020-11-30 00:58:24,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:24 BoogieIcfgContainer [2020-11-30 00:58:24,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:58:24,966 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:58:24,966 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:58:24,970 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:58:24,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:24,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:58:22" (1/3) ... [2020-11-30 00:58:24,972 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35ad98e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:58:24, skipping insertion in model container [2020-11-30 00:58:24,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:24,972 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:23" (2/3) ... [2020-11-30 00:58:24,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35ad98e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:58:24, skipping insertion in model container [2020-11-30 00:58:24,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:58:24,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:24" (3/3) ... [2020-11-30 00:58:24,977 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2020-11-30 00:58:25,041 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:58:25,041 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:58:25,042 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:58:25,042 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:58:25,042 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:58:25,042 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:58:25,042 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:58:25,042 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:58:25,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states. [2020-11-30 00:58:25,090 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 95 [2020-11-30 00:58:25,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:25,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:25,101 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:25,101 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:25,101 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:58:25,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states. [2020-11-30 00:58:25,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 95 [2020-11-30 00:58:25,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:25,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:25,111 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:25,111 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:25,117 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 20#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 112#L908true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 118#L916true main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 122#L872true assume 0 != main_~tmp~10; 94#L845true ~switchedOnBeforeTS~0 := 0; 93#L377true havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 8#L398-1true [2020-11-30 00:58:25,117 INFO L796 eck$LassoCheckResult]: Loop: 8#L398-1true assume !false; 95#L311true assume test_~splverifierCounter~0 < 4; 58#L312true test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 59#L320true assume !(0 != test_~tmp~5); 60#L320-1true test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 116#L330true assume !(0 != test_~tmp___0~2); 100#L330-1true test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 22#L340true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 56#L348-1true havoc __utac_acc__Specification5_spec__2_#t~ret33;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 130#L195true __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 6#L387true assume !(0 != ~pumpRunning~0); 105#L66true assume !(0 != ~systemActive~0); 18#L73true havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 65#L1005true __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 4#L398true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 8#L398-1true [2020-11-30 00:58:25,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:25,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:58:25,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:25,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760294717] [2020-11-30 00:58:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:25,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:25,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:25,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:25,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:25,704 INFO L82 PathProgramCache]: Analyzing trace with hash 677719544, now seen corresponding path program 1 times [2020-11-30 00:58:25,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:25,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435317063] [2020-11-30 00:58:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:25,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435317063] [2020-11-30 00:58:25,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:25,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:25,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828006672] [2020-11-30 00:58:25,786 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:58:25,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:25,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:25,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:25,810 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 3 states. [2020-11-30 00:58:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:25,890 INFO L93 Difference]: Finished difference Result 279 states and 401 transitions. [2020-11-30 00:58:25,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:25,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 401 transitions. [2020-11-30 00:58:25,907 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2020-11-30 00:58:25,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 265 states and 386 transitions. [2020-11-30 00:58:25,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2020-11-30 00:58:25,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2020-11-30 00:58:25,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 386 transitions. [2020-11-30 00:58:25,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:58:25,933 INFO L691 BuchiCegarLoop]: Abstraction has 265 states and 386 transitions. [2020-11-30 00:58:25,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 386 transitions. [2020-11-30 00:58:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2020-11-30 00:58:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-30 00:58:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 383 transitions. [2020-11-30 00:58:25,995 INFO L714 BuchiCegarLoop]: Abstraction has 263 states and 383 transitions. [2020-11-30 00:58:25,995 INFO L594 BuchiCegarLoop]: Abstraction has 263 states and 383 transitions. [2020-11-30 00:58:25,995 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:58:25,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 383 transitions. [2020-11-30 00:58:25,999 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2020-11-30 00:58:26,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:26,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:26,005 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:26,005 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:26,009 INFO L794 eck$LassoCheckResult]: Stem: 558#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 469#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 470#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 569#L916 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 575#L872 assume 0 != main_~tmp~10; 547#L845 ~switchedOnBeforeTS~0 := 0; 546#L377 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 439#L398-1 [2020-11-30 00:58:26,009 INFO L796 eck$LassoCheckResult]: Loop: 439#L398-1 assume !false; 446#L311 assume test_~splverifierCounter~0 < 4; 548#L312 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 520#L320 assume !(0 != test_~tmp~5); 510#L320-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 521#L330 assume !(0 != test_~tmp___0~2); 555#L330-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 471#L340 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 473#L348-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 516#L195 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 441#L387 assume !(0 != ~pumpRunning~0); 442#L66 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 530#L124 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 488#L98-1 assume !(0 == ~pumpRunning~0); 464#L73 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 465#L1005 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 438#L398 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 439#L398-1 [2020-11-30 00:58:26,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:26,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:58:26,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:26,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098916094] [2020-11-30 00:58:26,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:26,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:26,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:26,174 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:26,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:26,175 INFO L82 PathProgramCache]: Analyzing trace with hash -532272223, now seen corresponding path program 1 times [2020-11-30 00:58:26,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:26,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479312811] [2020-11-30 00:58:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:26,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479312811] [2020-11-30 00:58:26,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:26,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:58:26,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335024805] [2020-11-30 00:58:26,197 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:58:26,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:26,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:58:26,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:58:26,199 INFO L87 Difference]: Start difference. First operand 263 states and 383 transitions. cyclomatic complexity: 123 Second operand 3 states. [2020-11-30 00:58:26,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:26,414 INFO L93 Difference]: Finished difference Result 362 states and 505 transitions. [2020-11-30 00:58:26,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:58:26,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 362 states and 505 transitions. [2020-11-30 00:58:26,421 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2020-11-30 00:58:26,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 362 states to 362 states and 505 transitions. [2020-11-30 00:58:26,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 362 [2020-11-30 00:58:26,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 362 [2020-11-30 00:58:26,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 362 states and 505 transitions. [2020-11-30 00:58:26,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:58:26,438 INFO L691 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2020-11-30 00:58:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states and 505 transitions. [2020-11-30 00:58:26,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2020-11-30 00:58:26,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-11-30 00:58:26,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 505 transitions. [2020-11-30 00:58:26,473 INFO L714 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2020-11-30 00:58:26,473 INFO L594 BuchiCegarLoop]: Abstraction has 362 states and 505 transitions. [2020-11-30 00:58:26,473 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:58:26,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 362 states and 505 transitions. [2020-11-30 00:58:26,476 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2020-11-30 00:58:26,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:26,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:26,481 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:26,481 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:26,481 INFO L794 eck$LassoCheckResult]: Stem: 1195#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1100#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1101#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1204#L916 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 1209#L872 assume 0 != main_~tmp~10; 1186#L845 ~switchedOnBeforeTS~0 := 0; 1185#L377 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1068#L398-1 [2020-11-30 00:58:26,482 INFO L796 eck$LassoCheckResult]: Loop: 1068#L398-1 assume !false; 1077#L311 assume test_~splverifierCounter~0 < 4; 1187#L312 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 1316#L320 assume !(0 != test_~tmp~5); 1314#L320-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 1313#L330 assume !(0 != test_~tmp___0~2); 1311#L330-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 1310#L340 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1149#L348-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1151#L195 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 1072#L387 assume !(0 != ~pumpRunning~0); 1073#L66 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1164#L124 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1118#L98-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1119#L1013-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1166#L1018-1 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 1196#L244-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1289#L244-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1287#L250-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1159#L102-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1096#L73 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1097#L1005 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 1067#L398 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 1068#L398-1 [2020-11-30 00:58:26,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:26,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:58:26,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:26,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324458008] [2020-11-30 00:58:26,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:26,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:26,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:26,641 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:26,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:26,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1637117459, now seen corresponding path program 1 times [2020-11-30 00:58:26,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:26,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188839283] [2020-11-30 00:58:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:26,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:26,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188839283] [2020-11-30 00:58:26,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:26,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:58:26,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350156802] [2020-11-30 00:58:26,707 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:58:26,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:26,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:58:26,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:26,708 INFO L87 Difference]: Start difference. First operand 362 states and 505 transitions. cyclomatic complexity: 146 Second operand 5 states. [2020-11-30 00:58:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:26,963 INFO L93 Difference]: Finished difference Result 1022 states and 1397 transitions. [2020-11-30 00:58:26,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:58:26,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1022 states and 1397 transitions. [2020-11-30 00:58:26,979 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 671 [2020-11-30 00:58:26,990 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1022 states to 1022 states and 1397 transitions. [2020-11-30 00:58:26,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1022 [2020-11-30 00:58:26,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1022 [2020-11-30 00:58:26,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1022 states and 1397 transitions. [2020-11-30 00:58:26,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:58:26,994 INFO L691 BuchiCegarLoop]: Abstraction has 1022 states and 1397 transitions. [2020-11-30 00:58:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states and 1397 transitions. [2020-11-30 00:58:27,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 717. [2020-11-30 00:58:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-11-30 00:58:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 975 transitions. [2020-11-30 00:58:27,028 INFO L714 BuchiCegarLoop]: Abstraction has 717 states and 975 transitions. [2020-11-30 00:58:27,029 INFO L594 BuchiCegarLoop]: Abstraction has 717 states and 975 transitions. [2020-11-30 00:58:27,029 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:58:27,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 717 states and 975 transitions. [2020-11-30 00:58:27,035 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 510 [2020-11-30 00:58:27,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:58:27,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:58:27,038 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:27,038 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:27,040 INFO L794 eck$LassoCheckResult]: Stem: 2594#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2499#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 2500#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 2604#L916 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 2610#L872 assume 0 != main_~tmp~10; 2582#L845 ~switchedOnBeforeTS~0 := 0; 2580#L377 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2581#L398-1 [2020-11-30 00:58:27,040 INFO L796 eck$LassoCheckResult]: Loop: 2581#L398-1 assume !false; 2871#L311 assume test_~splverifierCounter~0 < 4; 2868#L312 test_~tmp~5 := test_#t~nondet29;havoc test_#t~nondet29; 2866#L320 assume !(0 != test_~tmp~5); 2552#L320-1 test_~tmp___0~2 := test_#t~nondet30;havoc test_#t~nondet30; 2553#L330 assume !(0 != test_~tmp___0~2); 2591#L330-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 2501#L340 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2503#L348-1 havoc __utac_acc__Specification5_spec__2_#t~ret33;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2546#L195 __utac_acc__Specification5_spec__2_#t~ret33 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret33;havoc __utac_acc__Specification5_spec__2_#t~ret33; 2472#L387 assume !(0 != ~pumpRunning~0); 2473#L66 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2562#L124 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2517#L98-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 2518#L1013-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 2563#L1018-1 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 2596#L244-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 2619#L244-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2617#L250-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 2557#L102-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2540#L73 havoc __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_#t~ret35, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 2876#L1005 __utac_acc__Specification5_spec__3_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 2875#L398 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2874#L195-1 __utac_acc__Specification5_spec__3_#t~ret35 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret35;havoc __utac_acc__Specification5_spec__3_#t~ret35; 2873#L402 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2581#L398-1 [2020-11-30 00:58:27,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:27,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-30 00:58:27,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:27,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722747463] [2020-11-30 00:58:27,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:27,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:27,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:27,153 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:27,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:27,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1311860824, now seen corresponding path program 1 times [2020-11-30 00:58:27,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:27,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655698555] [2020-11-30 00:58:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:27,164 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:27,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:27,176 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:27,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:27,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1375287006, now seen corresponding path program 1 times [2020-11-30 00:58:27,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:27,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777938373] [2020-11-30 00:58:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:27,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:27,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:27,289 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:27,465 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-30 00:59:51,875 WARN L193 SmtUtils]: Spent 1.40 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 01:00:47,831 WARN L193 SmtUtils]: Spent 55.94 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 01:00:48,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:00:48 BoogieIcfgContainer [2020-11-30 01:00:48,081 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:00:48,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:00:48,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:00:48,082 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:00:48,082 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:24" (3/4) ... [2020-11-30 01:00:48,085 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:00:48,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_776ab273-900b-4add-8293-c07b017031e6/bin/uautomizer/witness.graphml [2020-11-30 01:00:48,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:00:48,155 INFO L168 Benchmark]: Toolchain (without parser) took 145157.52 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 79.0 MB in the beginning and 124.0 MB in the end (delta: -45.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:48,156 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:48,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.62 ms. Allocated memory is still 109.1 MB. Free memory was 79.0 MB in the beginning and 73.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:48,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.94 ms. Allocated memory is still 109.1 MB. Free memory was 73.9 MB in the beginning and 69.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:48,158 INFO L168 Benchmark]: Boogie Preprocessor took 51.39 ms. Allocated memory is still 109.1 MB. Free memory was 69.8 MB in the beginning and 66.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:48,158 INFO L168 Benchmark]: RCFGBuilder took 1238.30 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 66.8 MB in the beginning and 97.0 MB in the end (delta: -30.2 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:48,159 INFO L168 Benchmark]: BuchiAutomizer took 143114.58 ms. Allocated memory was 132.1 MB in the beginning and 161.5 MB in the end (delta: 29.4 MB). Free memory was 97.0 MB in the beginning and 127.2 MB in the end (delta: -30.2 MB). Peak memory consumption was 93.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:48,165 INFO L168 Benchmark]: Witness Printer took 72.49 ms. Allocated memory is still 161.5 MB. Free memory was 127.2 MB in the beginning and 124.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:48,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 576.62 ms. Allocated memory is still 109.1 MB. Free memory was 79.0 MB in the beginning and 73.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.94 ms. Allocated memory is still 109.1 MB. Free memory was 73.9 MB in the beginning and 69.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.39 ms. Allocated memory is still 109.1 MB. Free memory was 69.8 MB in the beginning and 66.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1238.30 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 66.8 MB in the beginning and 97.0 MB in the end (delta: -30.2 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143114.58 ms. Allocated memory was 132.1 MB in the beginning and 161.5 MB in the end (delta: 29.4 MB). Free memory was 97.0 MB in the beginning and 127.2 MB in the end (delta: -30.2 MB). Peak memory consumption was 93.1 MB. Max. memory is 16.1 GB. * Witness Printer took 72.49 ms. Allocated memory is still 161.5 MB. Free memory was 127.2 MB in the beginning and 124.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 717 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 142.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 307 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 717 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 690 SDtfs, 1006 SDslu, 933 SDs, 0 SdLazy, 145 SolverSat, 63 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: 310]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3706} State at position 1 is {retValue_acc=1, NULL=0, NULL=0, NULL=3726, NULL=0, NULL=3706, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65d699be=0, NULL=3731, methaneLevelCritical=0, NULL=3711, NULL=0, tmp=0, NULL=0, retValue_acc=0, NULL=3728, NULL=0, tmp___1=0, NULL=0, NULL=3717, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@775e42bc=0, NULL=3723, tmp=1, waterLevel=1, NULL=3730, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2da2c90c=0, \result=1, head=0, pumpRunning=0, NULL=3729, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6973ad05=0, NULL=3724, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e68493f=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ff5b9db=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1103c3b7=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ba70fc3=0, NULL=0, tmp___0=0, NULL=3708, NULL=3714, NULL=3732, tmp=0, head=0, NULL=0, NULL=3722, NULL=3709, retValue_acc=0, NULL=3727, tmp=1, NULL=0, tmp___0=0, NULL=0, NULL=3712, NULL=0, NULL=0, tmp=0, switchedOnBeforeTS=0, \result=0, NULL=0, systemActive=1, \result=1, NULL=3710, NULL=0, NULL=3719, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3721, NULL=3716, \result=0, tmp___0=0, NULL=3733, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1411ebd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4511b39a=0, NULL=0, NULL=3713, retValue_acc=1, NULL=3725, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a688558=0, NULL=3720, retValue_acc=1, tmp___2=72, splverifierCounter=0, NULL=0, NULL=0, NULL=3715, retValue_acc=0, NULL=0, NULL=0, NULL=3707, NULL=0, NULL=3718, NULL=3734} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L54] int pumpRunning = 0; [L55] int systemActive = 1; [L371] int switchedOnBeforeTS ; [L589] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L786] int cleanupTimeShifts = 4; [L930] int waterLevel = 1; [L931] int methaneLevelCritical = 0; [L863] int retValue_acc ; [L864] int tmp ; [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L376] switchedOnBeforeTS = 0 [L301] int splverifierCounter ; [L302] int tmp ; [L303] int tmp___0 ; [L304] int tmp___1 ; [L305] int tmp___2 ; [L308] splverifierCounter = 0 Loop: [L310] COND TRUE 1 [L312] COND TRUE splverifierCounter < 4 [L318] tmp = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp)) [L328] tmp___0 = __VERIFIER_nondet_int() [L330] COND FALSE !(\read(tmp___0)) [L338] tmp___2 = __VERIFIER_nondet_int() [L340] COND TRUE \read(tmp___2) [L292] systemActive = 1 [L191] int retValue_acc ; [L194] retValue_acc = pumpRunning [L195] return (retValue_acc); [L385] switchedOnBeforeTS = isPumpRunning() [L66] COND FALSE !(\read(pumpRunning)) [L73] COND TRUE \read(systemActive) [L121] int tmp ; [L124] COND FALSE !(\read(pumpRunning)) [L95] int tmp ; [L98] COND TRUE ! pumpRunning [L236] int retValue_acc ; [L237] int tmp ; [L238] int tmp___0 ; [L1010] int retValue_acc ; [L1013] COND TRUE waterLevel < 2 [L1014] retValue_acc = 1 [L1015] return (retValue_acc); [L242] tmp = isHighWaterSensorDry() [L244] COND TRUE \read(tmp) [L245] tmp___0 = 0 [L249] retValue_acc = tmp___0 [L250] return (retValue_acc); [L100] tmp = isHighWaterLevel() [L102] COND FALSE !(\read(tmp)) [L391] int tmp ; [L392] int tmp___0 ; [L1001] int retValue_acc ; [L1004] retValue_acc = waterLevel [L1005] return (retValue_acc); [L396] tmp = getWaterLevel() [L398] COND TRUE tmp != 2 [L191] int retValue_acc ; [L194] retValue_acc = pumpRunning [L195] return (retValue_acc); [L400] tmp___0 = isPumpRunning() [L402] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...