./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/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 41f42675c60ac44d105cf71847968c4edf76aefd .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 14:54:58,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:54:58,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:54:58,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:54:58,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:54:58,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:54:58,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:54:58,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:54:58,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:54:58,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:54:58,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:54:58,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:54:58,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:54:58,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:54:58,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:54:58,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:54:58,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:54:58,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:54:58,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:54:58,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:54:58,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:54:58,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:54:58,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:54:58,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:54:58,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:54:58,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:54:58,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:54:58,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:54:58,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:54:58,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:54:58,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:54:58,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:54:58,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:54:58,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:54:58,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:54:58,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:54:58,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:54:58,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:54:58,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:54:58,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:54:58,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:54:58,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 14:54:58,716 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:54:58,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:54:58,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:54:58,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:54:58,719 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:54:58,719 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 14:54:58,720 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 14:54:58,720 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 14:54:58,720 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 14:54:58,721 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 14:54:58,721 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 14:54:58,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:54:58,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:54:58,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 14:54:58,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:54:58,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:54:58,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:54:58,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 14:54:58,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 14:54:58,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 14:54:58,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:54:58,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:54:58,725 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 14:54:58,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:54:58,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 14:54:58,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:54:58,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:54:58,727 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 14:54:58,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:54:58,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:54:58,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:54:58,729 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 14:54:58,730 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 14:54:58,731 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_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41f42675c60ac44d105cf71847968c4edf76aefd [2020-12-01 14:54:59,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:54:59,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:54:59,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:54:59,071 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:54:59,072 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:54:59,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-12-01 14:54:59,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/data/95519f823/8a24dcdfc0c5491daa4bb83665b29086/FLAG4ed977147 [2020-12-01 14:54:59,871 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:54:59,872 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-12-01 14:54:59,887 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/data/95519f823/8a24dcdfc0c5491daa4bb83665b29086/FLAG4ed977147 [2020-12-01 14:55:00,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/data/95519f823/8a24dcdfc0c5491daa4bb83665b29086 [2020-12-01 14:55:00,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:55:00,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:55:00,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:55:00,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:55:00,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:55:00,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:00,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598faef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00, skipping insertion in model container [2020-12-01 14:55:00,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:00,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:55:00,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:55:00,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:55:00,749 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:55:00,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:55:00,907 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:55:00,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00 WrapperNode [2020-12-01 14:55:00,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:55:00,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:55:00,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:55:00,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:55:00,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:00,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:00,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:55:00,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:55:00,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:55:00,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:55:01,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:01,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:01,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:01,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:01,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:01,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:01,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... [2020-12-01 14:55:01,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:55:01,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:55:01,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:55:01,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:55:01,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:55:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:55:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:55:01,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:55:01,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:55:02,384 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:55:02,384 INFO L298 CfgBuilder]: Removed 128 assume(true) statements. [2020-12-01 14:55:02,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:55:02 BoogieIcfgContainer [2020-12-01 14:55:02,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:55:02,388 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 14:55:02,388 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 14:55:02,405 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 14:55:02,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 14:55:02,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 02:55:00" (1/3) ... [2020-12-01 14:55:02,408 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@270241f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 02:55:02, skipping insertion in model container [2020-12-01 14:55:02,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 14:55:02,408 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:55:00" (2/3) ... [2020-12-01 14:55:02,409 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@270241f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 02:55:02, skipping insertion in model container [2020-12-01 14:55:02,409 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 14:55:02,409 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:55:02" (3/3) ... [2020-12-01 14:55:02,411 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-12-01 14:55:02,511 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 14:55:02,511 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 14:55:02,511 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 14:55:02,512 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:55:02,512 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:55:02,512 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 14:55:02,512 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:55:02,512 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 14:55:02,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-12-01 14:55:02,591 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2020-12-01 14:55:02,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:55:02,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:55:02,603 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:02,604 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:02,604 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 14:55:02,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-12-01 14:55:02,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2020-12-01 14:55:02,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:55:02,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:55:02,625 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:02,625 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:02,641 INFO L794 eck$LassoCheckResult]: Stem: 36#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 10#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 65#L353true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 83#L361true main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 26#L450true assume 0 != main_~tmp~4; 32#L425true ~methAndRunningLastTime~0 := 0; 70#L470true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 74#L481-1true [2020-12-01 14:55:02,642 INFO L796 eck$LassoCheckResult]: Loop: 74#L481-1true assume !false; 95#L68true assume test_~splverifierCounter~0 < 4; 4#L69true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 43#L77true assume !(0 != test_~tmp~0); 40#L77-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 17#L87true assume !(0 != test_~tmp___0~0); 13#L87-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 86#L97true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 72#L105-1true assume !(0 != ~pumpRunning~0); 24#L142true assume !(0 != ~systemActive~0); 11#L149true havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 63#L547-1true __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 67#L481true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 74#L481-1true [2020-12-01 14:55:02,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:55:02,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-12-01 14:55:02,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:55:02,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626788964] [2020-12-01 14:55:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:55:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:03,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:03,226 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:03,295 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:55:03,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:55:03,300 INFO L82 PathProgramCache]: Analyzing trace with hash 12634838, now seen corresponding path program 1 times [2020-12-01 14:55:03,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:55:03,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135953513] [2020-12-01 14:55:03,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:55:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:55:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:55:03,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135953513] [2020-12-01 14:55:03,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:55:03,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:55:03,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464618635] [2020-12-01 14:55:03,399 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 14:55:03,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:55:03,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:55:03,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:55:03,421 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 3 states. [2020-12-01 14:55:03,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:55:03,522 INFO L93 Difference]: Finished difference Result 173 states and 247 transitions. [2020-12-01 14:55:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:55:03,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 247 transitions. [2020-12-01 14:55:03,533 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 110 [2020-12-01 14:55:03,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 159 states and 232 transitions. [2020-12-01 14:55:03,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2020-12-01 14:55:03,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2020-12-01 14:55:03,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 232 transitions. [2020-12-01 14:55:03,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:55:03,546 INFO L692 BuchiCegarLoop]: Abstraction has 159 states and 232 transitions. [2020-12-01 14:55:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 232 transitions. [2020-12-01 14:55:03,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2020-12-01 14:55:03,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-12-01 14:55:03,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 229 transitions. [2020-12-01 14:55:03,595 INFO L715 BuchiCegarLoop]: Abstraction has 157 states and 229 transitions. [2020-12-01 14:55:03,596 INFO L595 BuchiCegarLoop]: Abstraction has 157 states and 229 transitions. [2020-12-01 14:55:03,596 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 14:55:03,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 229 transitions. [2020-12-01 14:55:03,600 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2020-12-01 14:55:03,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:55:03,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:55:03,601 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:03,601 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:03,601 INFO L794 eck$LassoCheckResult]: Stem: 324#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 289#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 290#L353 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 349#L361 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 311#L450 assume 0 != main_~tmp~4; 312#L425 ~methAndRunningLastTime~0 := 0; 320#L470 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 304#L481-1 [2020-12-01 14:55:03,602 INFO L796 eck$LassoCheckResult]: Loop: 304#L481-1 assume !false; 354#L68 assume test_~splverifierCounter~0 < 4; 279#L69 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 280#L77 assume !(0 != test_~tmp~0); 286#L77-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 299#L87 assume !(0 != test_~tmp___0~0); 295#L87-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 296#L97 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 352#L105-1 assume !(0 != ~pumpRunning~0); 307#L142 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 308#L174 assume !(0 == ~pumpRunning~0); 291#L149 havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 292#L547-1 __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 347#L481 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 304#L481-1 [2020-12-01 14:55:03,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:55:03,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-12-01 14:55:03,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:55:03,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131917349] [2020-12-01 14:55:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:55:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:03,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:03,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:03,872 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:55:03,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:55:03,887 INFO L82 PathProgramCache]: Analyzing trace with hash 349910499, now seen corresponding path program 1 times [2020-12-01 14:55:03,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:55:03,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497858542] [2020-12-01 14:55:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:55:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:55:03,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:55:03,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497858542] [2020-12-01 14:55:03,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:55:03,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:55:03,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605471130] [2020-12-01 14:55:03,923 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 14:55:03,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:55:03,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:55:03,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:55:03,926 INFO L87 Difference]: Start difference. First operand 157 states and 229 transitions. cyclomatic complexity: 75 Second operand 3 states. [2020-12-01 14:55:04,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:55:04,084 INFO L93 Difference]: Finished difference Result 246 states and 347 transitions. [2020-12-01 14:55:04,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:55:04,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 347 transitions. [2020-12-01 14:55:04,090 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 175 [2020-12-01 14:55:04,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 246 states and 347 transitions. [2020-12-01 14:55:04,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 246 [2020-12-01 14:55:04,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 246 [2020-12-01 14:55:04,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 246 states and 347 transitions. [2020-12-01 14:55:04,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:55:04,100 INFO L692 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2020-12-01 14:55:04,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states and 347 transitions. [2020-12-01 14:55:04,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2020-12-01 14:55:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-12-01 14:55:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 347 transitions. [2020-12-01 14:55:04,121 INFO L715 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2020-12-01 14:55:04,121 INFO L595 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2020-12-01 14:55:04,121 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 14:55:04,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 347 transitions. [2020-12-01 14:55:04,125 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 175 [2020-12-01 14:55:04,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:55:04,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:55:04,126 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:04,127 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:04,127 INFO L794 eck$LassoCheckResult]: Stem: 734#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 698#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 699#L353 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 784#L361 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 720#L450 assume 0 != main_~tmp~4; 721#L425 ~methAndRunningLastTime~0 := 0; 730#L470 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 785#L481-1 [2020-12-01 14:55:04,127 INFO L796 eck$LassoCheckResult]: Loop: 785#L481-1 assume !false; 792#L68 assume test_~splverifierCounter~0 < 4; 808#L69 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 745#L77 assume !(0 != test_~tmp~0); 695#L77-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 708#L87 assume !(0 != test_~tmp___0~0); 710#L87-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 802#L97 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 786#L105-1 assume !(0 != ~pumpRunning~0); 716#L142 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 717#L174 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 787#L587 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 714#L592 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 715#L294 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 748#L294-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 765#L300 processEnvironment_#t~ret11 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret11;havoc processEnvironment_#t~ret11; 863#L178 assume !(0 != processEnvironment_~tmp~1); 862#L149 havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 773#L547-1 __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 774#L481 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 785#L481-1 [2020-12-01 14:55:04,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:55:04,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-12-01 14:55:04,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:55:04,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340180260] [2020-12-01 14:55:04,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:55:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:04,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:04,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:04,366 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:55:04,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:55:04,369 INFO L82 PathProgramCache]: Analyzing trace with hash -678068497, now seen corresponding path program 1 times [2020-12-01 14:55:04,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:55:04,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148769864] [2020-12-01 14:55:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:55:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:04,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:04,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:04,398 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:55:04,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:55:04,399 INFO L82 PathProgramCache]: Analyzing trace with hash 487508277, now seen corresponding path program 1 times [2020-12-01 14:55:04,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:55:04,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998993322] [2020-12-01 14:55:04,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:55:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:04,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:55:04,548 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:55:04,573 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:55:04,784 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-01 14:56:39,632 WARN L197 SmtUtils]: Spent 1.58 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-12-01 14:57:34,500 WARN L197 SmtUtils]: Spent 54.81 s on a formula simplification that was a NOOP. DAG size: 435 [2020-12-01 14:57:34,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 02:57:34 BoogieIcfgContainer [2020-12-01 14:57:34,761 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 14:57:34,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:57:34,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:57:34,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:57:34,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:55:02" (3/4) ... [2020-12-01 14:57:34,765 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 14:57:34,871 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fa7c5657-7b77-4b1e-9fc1-96ab4610d5d7/bin/uautomizer/witness.graphml [2020-12-01 14:57:34,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:57:34,873 INFO L168 Benchmark]: Toolchain (without parser) took 154670.55 ms. Allocated memory was 90.2 MB in the beginning and 176.2 MB in the end (delta: 86.0 MB). Free memory was 61.9 MB in the beginning and 62.2 MB in the end (delta: -240.6 kB). Peak memory consumption was 84.3 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:34,873 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 90.2 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:57:34,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.75 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 61.9 MB in the beginning and 97.0 MB in the end (delta: -35.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:34,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.06 ms. Allocated memory is still 130.0 MB. Free memory was 97.0 MB in the beginning and 93.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:34,876 INFO L168 Benchmark]: Boogie Preprocessor took 70.25 ms. Allocated memory is still 130.0 MB. Free memory was 93.7 MB in the beginning and 91.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:34,877 INFO L168 Benchmark]: RCFGBuilder took 1324.47 ms. Allocated memory is still 130.0 MB. Free memory was 91.6 MB in the beginning and 38.3 MB in the end (delta: 53.3 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:34,877 INFO L168 Benchmark]: BuchiAutomizer took 152373.36 ms. Allocated memory was 130.0 MB in the beginning and 176.2 MB in the end (delta: 46.1 MB). Free memory was 37.9 MB in the beginning and 64.3 MB in the end (delta: -26.4 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:34,878 INFO L168 Benchmark]: Witness Printer took 109.91 ms. Allocated memory is still 176.2 MB. Free memory was 64.3 MB in the beginning and 62.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:34,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 90.2 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 701.75 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 61.9 MB in the beginning and 97.0 MB in the end (delta: -35.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.06 ms. Allocated memory is still 130.0 MB. Free memory was 97.0 MB in the beginning and 93.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.25 ms. Allocated memory is still 130.0 MB. Free memory was 93.7 MB in the beginning and 91.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1324.47 ms. Allocated memory is still 130.0 MB. Free memory was 91.6 MB in the beginning and 38.3 MB in the end (delta: 53.3 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 152373.36 ms. Allocated memory was 130.0 MB in the beginning and 176.2 MB in the end (delta: 46.1 MB). Free memory was 37.9 MB in the beginning and 64.3 MB in the end (delta: -26.4 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. * Witness Printer took 109.91 ms. Allocated memory is still 176.2 MB. Free memory was 64.3 MB in the beginning and 62.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 246 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 152.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 151.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 246 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 246 SDtfs, 224 SDslu, 170 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 67]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28341} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43882d4a=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b44733=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e2e22f9=0, NULL=28341, NULL=0, NULL=28344, NULL=28362, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ff3a80b=0, NULL=0, retValue_acc=0, NULL=28353, NULL=0, tmp___1=0, NULL=28355, NULL=28345, NULL=0, NULL=28351, cleanupTimeShifts=4, tmp=0, NULL=28363, NULL=28368, NULL=0, NULL=0, waterLevel=1, NULL=0, NULL=28365, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=28348, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c3de3cc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d35d3bc=0, NULL=0, tmp=1, NULL=0, NULL=28347, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28f6544=0, NULL=0, methAndRunningLastTime=0, NULL=28349, NULL=28343, tmp=0, head=0, NULL=28360, NULL=28354, NULL=0, NULL=0, retValue_acc=0, NULL=28364, NULL=28352, NULL=28350, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fe2f3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4afc8cfd=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=28342, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, retValue_acc=0, \result=0, NULL=28359, \result=0, NULL=28366, NULL=0, NULL=28358, NULL=0, NULL=0, retValue_acc=1, NULL=28357, NULL=28346, tmp___2=78, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=28367, NULL=28369, NULL=28356, tmp=0, NULL=28361} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L366] int cleanupTimeShifts = 4; [L464] int methAndRunningLastTime ; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L441] int retValue_acc ; [L442] int tmp ; [L357] int retValue_acc ; [L360] retValue_acc = 1 [L361] return (retValue_acc); [L448] tmp = valid_product() [L450] COND TRUE \read(tmp) [L469] methAndRunningLastTime = 0 [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 Loop: [L67] COND TRUE 1 [L69] COND TRUE splverifierCounter < 4 [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L286] int retValue_acc ; [L287] int tmp ; [L288] int tmp___0 ; [L584] int retValue_acc ; [L587] COND TRUE waterLevel < 2 [L588] retValue_acc = 1 [L589] return (retValue_acc); [L292] tmp = isHighWaterSensorDry() [L294] COND TRUE \read(tmp) [L295] tmp___0 = 0 [L299] retValue_acc = tmp___0 [L300] return (retValue_acc); [L176] tmp = isHighWaterLevel() [L178] COND FALSE !(\read(tmp)) [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L479] tmp = isMethaneLevelCritical() [L481] COND FALSE !(\read(tmp)) [L497] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...