./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.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_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/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 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:54:10,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:54:10,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:54:10,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:54:10,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:54:10,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:54:10,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:54:10,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:54:10,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:54:10,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:54:10,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:54:10,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:54:10,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:54:10,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:54:10,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:54:10,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:54:10,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:54:10,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:54:10,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:54:10,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:54:10,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:54:10,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:54:10,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:54:10,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:54:10,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:54:10,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:54:10,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:54:10,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:54:10,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:54:10,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:54:10,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:54:10,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:54:10,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:54:10,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:54:10,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:54:10,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:54:10,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:54:10,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:54:10,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:54:10,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:54:10,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:54:10,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:54:10,705 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:54:10,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:54:10,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:54:10,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:54:10,709 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:54:10,709 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:54:10,709 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:54:10,710 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:54:10,710 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:54:10,710 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:54:10,712 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:54:10,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:54:10,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:54:10,713 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:54:10,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:54:10,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:54:10,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:54:10,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:54:10,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:54:10,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:54:10,715 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:54:10,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:54:10,715 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:54:10,715 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:54:10,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:54:10,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:54:10,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:54:10,717 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:54:10,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:54:10,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:54:10,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:54:10,720 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:54:10,723 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:54:10,723 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_8dd62013-778a-46e3-838c-791c96a4337e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fe7406d6de8fdb6131e88150aaf8ea7b61928bc [2020-11-29 22:54:11,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:54:11,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:54:11,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:54:11,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:54:11,198 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:54:11,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2020-11-29 22:54:11,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/data/2cc83a893/e9bcf4faed2f472cb2e3b74fab0eb25d/FLAGfd5df0c5b [2020-11-29 22:54:12,107 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:54:12,107 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2020-11-29 22:54:12,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/data/2cc83a893/e9bcf4faed2f472cb2e3b74fab0eb25d/FLAGfd5df0c5b [2020-11-29 22:54:12,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/data/2cc83a893/e9bcf4faed2f472cb2e3b74fab0eb25d [2020-11-29 22:54:12,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:54:12,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:54:12,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:54:12,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:54:12,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:54:12,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:54:12" (1/1) ... [2020-11-29 22:54:12,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7228d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:12, skipping insertion in model container [2020-11-29 22:54:12,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:54:12" (1/1) ... [2020-11-29 22:54:12,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:54:12,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:54:12,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:54:12,856 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:54:13,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:54:13,052 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:54:13,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13 WrapperNode [2020-11-29 22:54:13,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:54:13,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:54:13,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:54:13,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:54:13,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:54:13,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:54:13,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:54:13,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:54:13,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... [2020-11-29 22:54:13,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:54:13,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:54:13,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:54:13,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:54:13,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:54:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:54:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:54:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:54:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:54:14,902 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:54:14,902 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-11-29 22:54:14,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:14 BoogieIcfgContainer [2020-11-29 22:54:14,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:54:14,906 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:54:14,906 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:54:14,912 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:54:14,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:54:14,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:54:12" (1/3) ... [2020-11-29 22:54:14,915 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70bbbfba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:54:14, skipping insertion in model container [2020-11-29 22:54:14,915 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:54:14,916 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:13" (2/3) ... [2020-11-29 22:54:14,916 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70bbbfba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:54:14, skipping insertion in model container [2020-11-29 22:54:14,916 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:54:14,917 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:14" (3/3) ... [2020-11-29 22:54:14,919 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-11-29 22:54:14,971 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:54:14,971 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:54:14,971 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:54:14,972 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:54:14,972 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:54:14,972 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:54:14,972 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:54:14,972 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:54:15,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-29 22:54:15,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 22:54:15,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:54:15,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:54:15,065 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:54:15,065 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:15,090 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:54:15,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-29 22:54:15,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 22:54:15,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:54:15,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:54:15,112 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:54:15,112 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:15,132 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);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(21);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(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 4#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 58#L936true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 80#L944true main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 102#L525true assume 0 != main_~tmp~5; 24#L499true havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 20#L155-1true [2020-11-29 22:54:15,133 INFO L796 eck$LassoCheckResult]: Loop: 20#L155-1true assume !false; 14#L384true assume test_~splverifierCounter~0 < 4; 84#L385true test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 91#L393true assume !(0 != test_~tmp~4); 92#L393-1true test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 15#L403true assume !(0 != test_~tmp___0~2); 16#L403-1true test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 59#L413true assume 0 != test_~tmp___2~0; 41#L419-1true assume !(0 != ~pumpRunning~0); 3#L186true assume !(0 != ~systemActive~0); 61#L193true havoc __utac_acc__Specification3_spec__1_#t~ret17, __utac_acc__Specification3_spec__1_#t~ret18, __utac_acc__Specification3_spec__1_#t~ret19, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 12#L92-1true __utac_acc__Specification3_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret17;havoc __utac_acc__Specification3_spec__1_#t~ret17; 56#L149true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 20#L155-1true [2020-11-29 22:54:15,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:15,146 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 22:54:15,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:15,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813688814] [2020-11-29 22:54:15,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:15,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:15,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:15,866 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:54:15,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:15,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709762, now seen corresponding path program 1 times [2020-11-29 22:54:15,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:15,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570984056] [2020-11-29 22:54:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:15,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:15,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:15,913 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:54:15,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:15,918 INFO L82 PathProgramCache]: Analyzing trace with hash 42569176, now seen corresponding path program 1 times [2020-11-29 22:54:15,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:15,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842235525] [2020-11-29 22:54:15,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:16,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842235525] [2020-11-29 22:54:16,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:16,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:54:16,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617201271] [2020-11-29 22:54:16,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:16,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:54:16,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:54:16,328 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 6 states. [2020-11-29 22:54:16,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:16,690 INFO L93 Difference]: Finished difference Result 270 states and 381 transitions. [2020-11-29 22:54:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:54:16,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 381 transitions. [2020-11-29 22:54:16,714 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 173 [2020-11-29 22:54:16,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 249 states and 360 transitions. [2020-11-29 22:54:16,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2020-11-29 22:54:16,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2020-11-29 22:54:16,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 360 transitions. [2020-11-29 22:54:16,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:54:16,767 INFO L691 BuchiCegarLoop]: Abstraction has 249 states and 360 transitions. [2020-11-29 22:54:16,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 360 transitions. [2020-11-29 22:54:16,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 150. [2020-11-29 22:54:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-29 22:54:16,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-11-29 22:54:16,833 INFO L714 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-11-29 22:54:16,833 INFO L594 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-11-29 22:54:16,833 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:54:16,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2020-11-29 22:54:16,836 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2020-11-29 22:54:16,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:54:16,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:54:16,838 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:54:16,838 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:16,839 INFO L794 eck$LassoCheckResult]: Stem: 486#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);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(21);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(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 403#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 404#L936 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 477#L944 main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 492#L525 assume 0 != main_~tmp~5; 437#L499 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 432#L155-1 [2020-11-29 22:54:16,839 INFO L796 eck$LassoCheckResult]: Loop: 432#L155-1 assume !false; 420#L384 assume test_~splverifierCounter~0 < 4; 421#L385 test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 494#L393 assume !(0 != test_~tmp~4); 453#L393-1 test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 422#L403 assume !(0 != test_~tmp___0~2); 423#L403-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 425#L413 assume 0 != test_~tmp___2~0; 465#L419-1 assume !(0 != ~pumpRunning~0); 401#L186 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret21, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 402#L244 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret20, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 475#L218-1 assume !(0 != ~pumpRunning~0); 462#L193 havoc __utac_acc__Specification3_spec__1_#t~ret17, __utac_acc__Specification3_spec__1_#t~ret18, __utac_acc__Specification3_spec__1_#t~ret19, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 417#L92-1 __utac_acc__Specification3_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret17;havoc __utac_acc__Specification3_spec__1_#t~ret17; 418#L149 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 432#L155-1 [2020-11-29 22:54:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:16,840 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 22:54:16,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:16,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113350434] [2020-11-29 22:54:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:16,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:16,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:16,977 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:54:16,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294320, now seen corresponding path program 1 times [2020-11-29 22:54:16,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:16,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050533577] [2020-11-29 22:54:16,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:16,988 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:16,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:17,008 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:54:17,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:17,010 INFO L82 PathProgramCache]: Analyzing trace with hash 104912074, now seen corresponding path program 1 times [2020-11-29 22:54:17,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:17,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971729861] [2020-11-29 22:54:17,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:17,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971729861] [2020-11-29 22:54:17,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:17,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:54:17,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596326071] [2020-11-29 22:54:17,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:17,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:54:17,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:17,227 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand 5 states. [2020-11-29 22:54:17,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:17,529 INFO L93 Difference]: Finished difference Result 511 states and 749 transitions. [2020-11-29 22:54:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:54:17,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 749 transitions. [2020-11-29 22:54:17,542 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 367 [2020-11-29 22:54:17,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 511 states and 749 transitions. [2020-11-29 22:54:17,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 511 [2020-11-29 22:54:17,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 511 [2020-11-29 22:54:17,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 511 states and 749 transitions. [2020-11-29 22:54:17,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:54:17,561 INFO L691 BuchiCegarLoop]: Abstraction has 511 states and 749 transitions. [2020-11-29 22:54:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states and 749 transitions. [2020-11-29 22:54:17,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 294. [2020-11-29 22:54:17,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-11-29 22:54:17,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 418 transitions. [2020-11-29 22:54:17,625 INFO L714 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2020-11-29 22:54:17,625 INFO L594 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2020-11-29 22:54:17,625 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:54:17,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 418 transitions. [2020-11-29 22:54:17,628 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 208 [2020-11-29 22:54:17,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:54:17,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:54:17,630 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:54:17,630 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:17,630 INFO L794 eck$LassoCheckResult]: Stem: 1193#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);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(21);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(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1082#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 1083#L936 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1177#L944 main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 1199#L525 assume 0 != main_~tmp~5; 1123#L499 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1124#L155-1 [2020-11-29 22:54:17,631 INFO L796 eck$LassoCheckResult]: Loop: 1124#L155-1 assume !false; 1317#L384 assume test_~splverifierCounter~0 < 4; 1318#L385 test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 1357#L393 assume !(0 != test_~tmp~4); 1354#L393-1 test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 1351#L403 assume !(0 != test_~tmp___0~2); 1348#L403-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 1345#L413 assume 0 != test_~tmp___2~0; 1343#L419-1 assume !(0 != ~pumpRunning~0); 1340#L186 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret21, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1330#L244 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret20, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1166#L218-1 assume !(0 != ~pumpRunning~0); 1148#L193 havoc __utac_acc__Specification3_spec__1_#t~ret17, __utac_acc__Specification3_spec__1_#t~ret18, __utac_acc__Specification3_spec__1_#t~ret19, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1327#L92-1 __utac_acc__Specification3_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret17;havoc __utac_acc__Specification3_spec__1_#t~ret17; 1326#L149 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1325#L124 __utac_acc__Specification3_spec__1_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret18;havoc __utac_acc__Specification3_spec__1_#t~ret18; 1322#L155 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1124#L155-1 [2020-11-29 22:54:17,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:17,632 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 22:54:17,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:17,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071459952] [2020-11-29 22:54:17,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:17,684 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:17,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:17,770 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:54:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:17,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1627108100, now seen corresponding path program 1 times [2020-11-29 22:54:17,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:17,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213628006] [2020-11-29 22:54:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:17,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:17,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:17,791 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:54:17,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:17,792 INFO L82 PathProgramCache]: Analyzing trace with hash 2036262942, now seen corresponding path program 1 times [2020-11-29 22:54:17,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:17,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951860400] [2020-11-29 22:54:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:17,861 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:54:17,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:54:17,919 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:55:59,904 WARN L193 SmtUtils]: Spent 1.70 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 22:57:12,791 WARN L193 SmtUtils]: Spent 1.21 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 22:57:13,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:57:13 BoogieIcfgContainer [2020-11-29 22:57:13,197 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:57:13,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:57:13,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:57:13,199 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:57:13,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:14" (3/4) ... [2020-11-29 22:57:13,203 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 22:57:13,266 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8dd62013-778a-46e3-838c-791c96a4337e/bin/uautomizer/witness.graphml [2020-11-29 22:57:13,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:57:13,268 INFO L168 Benchmark]: Toolchain (without parser) took 180922.40 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 88.7 MB in the beginning and 57.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 94.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:57:13,268 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 81.8 MB. Free memory was 41.9 MB in the beginning and 41.9 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:57:13,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.15 ms. Allocated memory is still 119.5 MB. Free memory was 88.4 MB in the beginning and 84.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:57:13,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.87 ms. Allocated memory is still 119.5 MB. Free memory was 84.8 MB in the beginning and 81.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:57:13,280 INFO L168 Benchmark]: Boogie Preprocessor took 93.67 ms. Allocated memory is still 119.5 MB. Free memory was 81.5 MB in the beginning and 79.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:57:13,281 INFO L168 Benchmark]: RCFGBuilder took 1642.07 ms. Allocated memory is still 119.5 MB. Free memory was 79.0 MB in the beginning and 57.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:57:13,282 INFO L168 Benchmark]: BuchiAutomizer took 178291.54 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 57.1 MB in the beginning and 59.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:57:13,288 INFO L168 Benchmark]: Witness Printer took 68.18 ms. Allocated memory is still 182.5 MB. Free memory was 59.1 MB in the beginning and 57.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:57:13,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 81.8 MB. Free memory was 41.9 MB in the beginning and 41.9 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 705.15 ms. Allocated memory is still 119.5 MB. Free memory was 88.4 MB in the beginning and 84.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.87 ms. Allocated memory is still 119.5 MB. Free memory was 84.8 MB in the beginning and 81.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.67 ms. Allocated memory is still 119.5 MB. Free memory was 81.5 MB in the beginning and 79.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1642.07 ms. Allocated memory is still 119.5 MB. Free memory was 79.0 MB in the beginning and 57.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 178291.54 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 57.1 MB in the beginning and 59.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. * Witness Printer took 68.18 ms. Allocated memory is still 182.5 MB. Free memory was 59.1 MB in the beginning and 57.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 294 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 178.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 177.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 316 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 294 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 365 SDtfs, 1154 SDslu, 1360 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 383]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=874} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a4d29c6=0, NULL=0, retValue_acc=0, NULL=0, NULL=877, NULL=0, NULL=874, retValue_acc=0, NULL=898, NULL=884, NULL=900, NULL=888, NULL=895, methaneLevelCritical=0, NULL=879, tmp=0, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, NULL=887, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=1, NULL=899, NULL=883, tmp=0, cleanupTimeShifts=4, NULL=886, NULL=880, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54ce6d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c9d0c10=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cde402b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7728a95e=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=878, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f2e73d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4152bcdb=0, NULL=896, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dfca5de=0, retValue_acc=1, head=0, pumpRunning=0, \result=0, NULL=893, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a9c3085=0, NULL=0, NULL=890, NULL=0, NULL=0, tmp=1, NULL=889, NULL=0, NULL=0, NULL=902, NULL=0, NULL=0, NULL=901, NULL=0, tmp___2=60, NULL=0, tmp___0=0, NULL=875, NULL=882, splverifierCounter=0, NULL=0, \result=0, NULL=892, NULL=897, NULL=894, tmp=0, tmp___1=0, head=0, NULL=0, NULL=0, NULL=885, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36c59f57=0, NULL=876, NULL=881, NULL=891} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L179] int pumpRunning = 0; [L180] int systemActive = 1; [L440] int cleanupTimeShifts = 4; [L717] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L516] int retValue_acc ; [L517] int tmp ; [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); [L523] tmp = valid_product() [L525] COND TRUE \read(tmp) [L374] int splverifierCounter ; [L375] int tmp ; [L376] int tmp___0 ; [L377] int tmp___1 ; [L378] int tmp___2 ; [L381] splverifierCounter = 0 Loop: [L383] COND TRUE 1 [L385] COND TRUE splverifierCounter < 4 [L391] tmp = __VERIFIER_nondet_int() [L393] COND FALSE !(\read(tmp)) [L401] tmp___0 = __VERIFIER_nondet_int() [L403] COND FALSE !(\read(tmp___0)) [L411] tmp___2 = __VERIFIER_nondet_int() [L413] COND TRUE \read(tmp___2) [L186] COND FALSE !(\read(pumpRunning)) [L193] COND TRUE \read(systemActive) [L241] int tmp ; [L244] COND FALSE !(\read(pumpRunning)) [L215] int tmp ; [L218] COND FALSE !(\read(pumpRunning)) [L141] int tmp ; [L142] int tmp___0 ; [L143] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L147] tmp = isMethaneLevelCritical() [L149] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L153] tmp___0 = getWaterLevel() [L155] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...