./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product46.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_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/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 509af06f1a7d0e447633255d4acb572bd82e2db9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:27:26,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:27:26,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:27:26,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:27:26,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:27:26,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:27:26,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:27:26,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:27:26,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:27:26,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:27:26,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:27:26,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:27:26,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:27:26,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:27:26,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:27:26,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:27:26,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:27:26,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:27:26,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:27:26,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:27:26,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:27:26,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:27:26,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:27:26,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:27:26,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:27:26,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:27:26,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:27:26,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:27:26,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:27:26,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:27:26,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:27:26,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:27:26,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:27:26,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:27:26,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:27:26,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:27:26,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:27:26,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:27:26,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:27:26,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:27:26,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:27:26,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:27:26,849 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:27:26,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:27:26,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:27:26,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:27:26,852 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:27:26,852 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:27:26,852 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:27:26,853 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:27:26,853 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:27:26,853 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:27:26,853 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:27:26,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:27:26,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:27:26,854 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:27:26,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:27:26,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:27:26,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:27:26,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:27:26,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:27:26,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:27:26,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:27:26,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:27:26,857 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:27:26,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:27:26,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:27:26,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:27:26,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:27:26,858 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:27:26,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:27:26,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:27:26,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:27:26,860 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:27:26,861 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:27:26,861 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_981b2fd2-118d-4747-bba5-41b048522fcf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 509af06f1a7d0e447633255d4acb572bd82e2db9 [2020-11-30 01:27:27,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:27:27,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:27:27,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:27:27,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:27:27,191 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:27:27,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2020-11-30 01:27:27,289 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/data/0fe75f38f/a34979341c8b45f5a5aaf5e3b396cf15/FLAGb172c7227 [2020-11-30 01:27:28,001 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:27:28,001 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2020-11-30 01:27:28,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/data/0fe75f38f/a34979341c8b45f5a5aaf5e3b396cf15/FLAGb172c7227 [2020-11-30 01:27:28,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/data/0fe75f38f/a34979341c8b45f5a5aaf5e3b396cf15 [2020-11-30 01:27:28,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:27:28,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:27:28,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:28,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:27:28,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:27:28,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46b39bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28, skipping insertion in model container [2020-11-30 01:27:28,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:27:28,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:27:28,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:28,712 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:27:28,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:28,898 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:27:28,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28 WrapperNode [2020-11-30 01:27:28,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:28,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:27:28,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:27:28,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:27:28,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:28,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:27:29,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:27:29,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:27:29,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:27:29,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... [2020-11-30 01:27:29,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:27:29,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:27:29,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:27:29,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:27:29,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:27:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:27:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:27:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:27:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:27:30,612 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:27:30,614 INFO L298 CfgBuilder]: Removed 200 assume(true) statements. [2020-11-30 01:27:30,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:30 BoogieIcfgContainer [2020-11-30 01:27:30,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:27:30,618 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:27:30,618 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:27:30,624 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:27:30,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:27:30,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:27:28" (1/3) ... [2020-11-30 01:27:30,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c215b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:27:30, skipping insertion in model container [2020-11-30 01:27:30,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:27:30,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:28" (2/3) ... [2020-11-30 01:27:30,628 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c215b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:27:30, skipping insertion in model container [2020-11-30 01:27:30,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:27:30,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:30" (3/3) ... [2020-11-30 01:27:30,631 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2020-11-30 01:27:30,695 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:27:30,695 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:27:30,695 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:27:30,695 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:27:30,695 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:27:30,696 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:27:30,696 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:27:30,696 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:27:30,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states. [2020-11-30 01:27:30,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-30 01:27:30,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:27:30,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:27:30,769 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:27:30,769 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:30,769 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:27:30,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states. [2020-11-30 01:27:30,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-30 01:27:30,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:27:30,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:27:30,781 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:27:30,781 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:30,788 INFO L794 eck$LassoCheckResult]: Stem: 87#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 14#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 49#L447true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 54#L455true main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 58#L411true assume 0 != main_~tmp~5; 98#L385true 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; 55#L477-1true [2020-11-30 01:27:30,788 INFO L796 eck$LassoCheckResult]: Loop: 55#L477-1true assume !false; 76#L58true assume test_~splverifierCounter~0 < 4; 22#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 60#L67true assume !(0 != test_~tmp~0); 56#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 92#L77true assume !(0 != test_~tmp___0~0); 90#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 16#L87true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 9#L95-2true assume !(0 != ~pumpRunning~0); 73#L130true assume !(0 != ~systemActive~0); 104#L137true havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~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; 95#L539-3true __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 52#L477true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 55#L477-1true [2020-11-30 01:27:30,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:30,796 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:27:30,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:30,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014540861] [2020-11-30 01:27:30,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:31,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:31,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:31,333 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:31,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:31,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1678359099, now seen corresponding path program 1 times [2020-11-30 01:27:31,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:31,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807183002] [2020-11-30 01:27:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:31,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807183002] [2020-11-30 01:27:31,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:31,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:31,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70937004] [2020-11-30 01:27:31,407 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:27:31,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:31,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:31,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:31,428 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-11-30 01:27:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:31,496 INFO L93 Difference]: Finished difference Result 126 states and 179 transitions. [2020-11-30 01:27:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:31,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 179 transitions. [2020-11-30 01:27:31,504 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2020-11-30 01:27:31,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 119 states and 171 transitions. [2020-11-30 01:27:31,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2020-11-30 01:27:31,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2020-11-30 01:27:31,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 171 transitions. [2020-11-30 01:27:31,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:27:31,520 INFO L691 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2020-11-30 01:27:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 171 transitions. [2020-11-30 01:27:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-11-30 01:27:31,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-30 01:27:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2020-11-30 01:27:31,557 INFO L714 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2020-11-30 01:27:31,557 INFO L594 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2020-11-30 01:27:31,557 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:27:31,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 171 transitions. [2020-11-30 01:27:31,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2020-11-30 01:27:31,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:27:31,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:27:31,561 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:27:31,562 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:31,562 INFO L794 eck$LassoCheckResult]: Stem: 369#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 282#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 283#L447 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 337#L455 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 345#L411 assume 0 != main_~tmp~5; 351#L385 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; 341#L477-1 [2020-11-30 01:27:31,562 INFO L796 eck$LassoCheckResult]: Loop: 341#L477-1 assume !false; 346#L58 assume test_~splverifierCounter~0 < 4; 291#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 292#L67 assume !(0 != test_~tmp~0); 349#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 350#L77 assume !(0 != test_~tmp___0~0); 365#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 286#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 272#L95-2 assume !(0 != ~pumpRunning~0); 273#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 330#L188 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 331#L162-1 assume !(0 == ~pumpRunning~0); 295#L137 havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~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; 371#L539-3 __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 340#L477 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 341#L477-1 [2020-11-30 01:27:31,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:31,563 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:27:31,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:31,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865444243] [2020-11-30 01:27:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:31,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:31,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:31,773 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:31,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:31,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1075674041, now seen corresponding path program 1 times [2020-11-30 01:27:31,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:31,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090670249] [2020-11-30 01:27:31,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:31,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090670249] [2020-11-30 01:27:31,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:31,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:31,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494673778] [2020-11-30 01:27:31,794 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:27:31,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:31,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:31,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:31,795 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. cyclomatic complexity: 54 Second operand 3 states. [2020-11-30 01:27:31,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:31,960 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2020-11-30 01:27:31,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:31,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 219 transitions. [2020-11-30 01:27:31,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2020-11-30 01:27:31,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 219 transitions. [2020-11-30 01:27:31,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2020-11-30 01:27:31,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2020-11-30 01:27:31,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 219 transitions. [2020-11-30 01:27:31,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:27:31,971 INFO L691 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2020-11-30 01:27:31,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 219 transitions. [2020-11-30 01:27:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-11-30 01:27:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-30 01:27:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 219 transitions. [2020-11-30 01:27:31,990 INFO L714 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2020-11-30 01:27:31,990 INFO L594 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2020-11-30 01:27:31,990 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:27:31,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 219 transitions. [2020-11-30 01:27:31,992 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2020-11-30 01:27:31,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:27:31,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:27:31,993 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:27:31,993 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:31,994 INFO L794 eck$LassoCheckResult]: Stem: 659#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 566#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 567#L447 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 623#L455 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 631#L411 assume 0 != main_~tmp~5; 638#L385 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; 632#L477-1 [2020-11-30 01:27:31,994 INFO L796 eck$LassoCheckResult]: Loop: 632#L477-1 assume !false; 633#L58 assume test_~splverifierCounter~0 < 4; 576#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 577#L67 assume !(0 != test_~tmp~0); 636#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 637#L77 assume !(0 != test_~tmp___0~0); 655#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 570#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 557#L95-2 assume !(0 != ~pumpRunning~0); 558#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 615#L188 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 616#L162-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 613#L579-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 614#L584-1 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 573#L307-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 549#L307-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 550#L313-1 processEnvironment__wrappee__methaneQuery_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret11;havoc processEnvironment__wrappee__methaneQuery_#t~ret11; 605#L166-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 580#L137 havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~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; 666#L539-3 __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 706#L477 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 632#L477-1 [2020-11-30 01:27:31,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:31,995 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:27:31,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:31,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530695655] [2020-11-30 01:27:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:32,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:32,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:32,137 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:32,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:32,138 INFO L82 PathProgramCache]: Analyzing trace with hash -515194541, now seen corresponding path program 1 times [2020-11-30 01:27:32,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:32,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90581614] [2020-11-30 01:27:32,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:32,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:32,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:32,158 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:32,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:32,159 INFO L82 PathProgramCache]: Analyzing trace with hash -59123347, now seen corresponding path program 1 times [2020-11-30 01:27:32,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:32,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703352873] [2020-11-30 01:27:32,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:32,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:32,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:32,340 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:32,517 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 01:29:05,688 WARN L193 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:30:06,144 WARN L193 SmtUtils]: Spent 1.01 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:30:06,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:30:06 BoogieIcfgContainer [2020-11-30 01:30:06,490 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:30:06,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:30:06,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:30:06,491 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:30:06,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:30" (3/4) ... [2020-11-30 01:30:06,494 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:30:06,618 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_981b2fd2-118d-4747-bba5-41b048522fcf/bin/uautomizer/witness.graphml [2020-11-30 01:30:06,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:30:06,632 INFO L168 Benchmark]: Toolchain (without parser) took 158387.98 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 53.4 MB in the beginning and 68.5 MB in the end (delta: -15.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:06,633 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 83.9 MB. Free memory was 40.5 MB in the beginning and 40.5 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:06,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.52 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 53.1 MB in the beginning and 67.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:06,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.40 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 63.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:06,639 INFO L168 Benchmark]: Boogie Preprocessor took 101.06 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 60.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:06,639 INFO L168 Benchmark]: RCFGBuilder took 1503.88 ms. Allocated memory is still 100.7 MB. Free memory was 60.5 MB in the beginning and 42.3 MB in the end (delta: 18.2 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:06,640 INFO L168 Benchmark]: BuchiAutomizer took 155872.03 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 41.6 MB in the beginning and 71.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:06,641 INFO L168 Benchmark]: Witness Printer took 139.69 ms. Allocated memory is still 121.6 MB. Free memory was 71.6 MB in the beginning and 68.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:06,646 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 83.9 MB. Free memory was 40.5 MB in the beginning and 40.5 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 652.52 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 53.1 MB in the beginning and 67.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.40 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 63.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.06 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 60.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1503.88 ms. Allocated memory is still 100.7 MB. Free memory was 60.5 MB in the beginning and 42.3 MB in the end (delta: 18.2 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 155872.03 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 41.6 MB in the beginning and 71.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. * Witness Printer took 139.69 ms. Allocated memory is still 121.6 MB. Free memory was 71.6 MB in the beginning and 68.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 155.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 155.2s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 332 SDtfs, 304 SDslu, 57 SDs, 0 SdLazy, 33 SolverSat, 23 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: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11040} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5603279d=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e19c4d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@84838f1=0, NULL=11040, NULL=0, NULL=0, NULL=11041, NULL=11051, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@136cc265=0, NULL=0, retValue_acc=0, NULL=11043, NULL=0, tmp___1=0, NULL=0, NULL=11046, NULL=11053, cleanupTimeShifts=4, tmp=0, NULL=11058, waterLevel=1, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=11068, tmp=0, tmp=1, \result=1, NULL=0, tmp=1, NULL=0, NULL=11052, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e38412b=0, NULL=0, NULL=11054, NULL=11066, NULL=11064, NULL=11067, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=11050, NULL=0, NULL=0, NULL=11044, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7eafa597=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@255d544d=0, NULL=11062, tmp___0=0, NULL=0, NULL=0, NULL=11069, NULL=11049, NULL=0, tmp___0=0, NULL=0, NULL=11061, NULL=0, systemActive=1, NULL=11063, retValue_acc=0, \result=0, NULL=11060, NULL=11047, \result=0, NULL=11048, NULL=0, NULL=0, retValue_acc=1, NULL=11059, NULL=11055, NULL=11056, tmp___2=74, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dd0c6a5=0, \result=0, NULL=11042, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12e96749=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@389e8e15=0, NULL=0, NULL=0, NULL=11045, NULL=0, NULL=11057} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L496] int waterLevel = 1; [L497] int methaneLevelCritical = 0; [L759] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L402] int retValue_acc ; [L403] int tmp ; [L451] int retValue_acc ; [L454] retValue_acc = 1 [L455] return (retValue_acc); [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L321] systemActive = 1 [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L185] int tmp ; [L188] COND FALSE !(\read(pumpRunning)) [L159] int tmp ; [L162] COND TRUE ! pumpRunning [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; [L576] int retValue_acc ; [L579] COND TRUE waterLevel < 2 [L580] retValue_acc = 1 [L581] return (retValue_acc); [L305] tmp = isHighWaterSensorDry() [L307] COND TRUE \read(tmp) [L308] tmp___0 = 0 [L312] retValue_acc = tmp___0 [L313] return (retValue_acc); [L164] tmp = isHighWaterLevel() [L166] COND FALSE !(\read(tmp)) [L470] int tmp ; [L471] int tmp___0 ; [L535] int retValue_acc ; [L538] retValue_acc = methaneLevelCritical [L539] return (retValue_acc); [L475] tmp = isMethaneLevelCritical() [L477] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...