./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product26.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_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/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 7b0c3f3646e33973a6d7bd1caf1826f109e77f0e ......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:23:26,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:23:26,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:23:26,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:23:26,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:23:26,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:23:26,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:23:26,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:23:26,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:23:26,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:23:26,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:23:26,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:23:26,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:23:26,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:23:26,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:23:26,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:23:26,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:23:26,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:23:26,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:23:26,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:23:26,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:23:26,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:23:26,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:23:26,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:23:26,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:23:26,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:23:26,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:23:26,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:23:26,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:23:26,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:23:26,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:23:26,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:23:26,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:23:26,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:23:26,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:23:26,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:23:26,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:23:26,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:23:26,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:23:26,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:23:26,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:23:26,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:23:26,640 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:23:26,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:23:26,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:23:26,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:23:26,642 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:23:26,643 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:23:26,643 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:23:26,643 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:23:26,643 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:23:26,643 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:23:26,644 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:23:26,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:23:26,644 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:23:26,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:23:26,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:23:26,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:23:26,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:23:26,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:23:26,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:23:26,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:23:26,646 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:23:26,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:23:26,647 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:23:26,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:23:26,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:23:26,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:23:26,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:23:26,649 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:23:26,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:23:26,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:23:26,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:23:26,650 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:23:26,651 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:23:26,651 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_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b0c3f3646e33973a6d7bd1caf1826f109e77f0e [2020-11-29 20:23:26,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:23:27,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:23:27,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:23:27,048 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:23:27,049 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:23:27,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2020-11-29 20:23:27,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/data/fd7bb4a7d/04959ef3cae640248a3cfb11941a2cb1/FLAGb33ce830b [2020-11-29 20:23:27,825 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:23:27,826 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2020-11-29 20:23:27,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/data/fd7bb4a7d/04959ef3cae640248a3cfb11941a2cb1/FLAGb33ce830b [2020-11-29 20:23:28,062 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/data/fd7bb4a7d/04959ef3cae640248a3cfb11941a2cb1 [2020-11-29 20:23:28,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:23:28,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:23:28,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:23:28,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:23:28,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:23:28,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:28,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e4b3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28, skipping insertion in model container [2020-11-29 20:23:28,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:28,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:23:28,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:23:28,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:23:28,683 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:23:28,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:23:28,840 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:23:28,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28 WrapperNode [2020-11-29 20:23:28,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:23:28,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:23:28,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:23:28,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:23:28,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:28,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:28,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:23:28,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:23:28,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:23:28,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:23:28,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:28,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:28,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:28,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:29,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:29,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:29,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... [2020-11-29 20:23:29,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:23:29,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:23:29,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:23:29,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:23:29,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:23:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:23:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:23:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:23:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:23:30,289 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:23:30,289 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-11-29 20:23:30,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:23:30 BoogieIcfgContainer [2020-11-29 20:23:30,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:23:30,293 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:23:30,293 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:23:30,298 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:23:30,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:23:30,299 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:23:28" (1/3) ... [2020-11-29 20:23:30,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@796632d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:23:30, skipping insertion in model container [2020-11-29 20:23:30,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:23:30,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:28" (2/3) ... [2020-11-29 20:23:30,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@796632d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:23:30, skipping insertion in model container [2020-11-29 20:23:30,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:23:30,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:23:30" (3/3) ... [2020-11-29 20:23:30,304 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2020-11-29 20:23:30,380 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:23:30,380 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:23:30,380 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:23:30,381 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:23:30,381 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:23:30,381 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:23:30,381 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:23:30,382 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:23:30,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-29 20:23:30,435 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-29 20:23:30,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:23:30,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:23:30,446 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:23:30,446 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:30,447 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:23:30,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-29 20:23:30,454 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-29 20:23:30,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:23:30,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:23:30,456 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:23:30,456 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:30,462 INFO L794 eck$LassoCheckResult]: Stem: 38#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~string32.base, #t~string32.offset := #Ultimate.allocOnStack(13);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(77, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(101, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(116, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(104, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string36.base, #t~string36.offset, 1);call write~init~int(82, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(73, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(84, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 4 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(75, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 40#L451true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 61#L459true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 51#L912true assume 0 != main_~tmp~8; 25#L889true 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; 57#L408-1true [2020-11-29 20:23:30,464 INFO L796 eck$LassoCheckResult]: Loop: 57#L408-1true assume !false; 52#L67true assume test_~splverifierCounter~0 < 4; 77#L68true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 17#L76true assume !(0 != test_~tmp~0); 14#L76-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 67#L86true assume !(0 != test_~tmp___0~0); 65#L86-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 49#L96true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 42#L104-2true assume !(0 != ~pumpRunning~0); 39#L139true assume !(0 != ~systemActive~0); 7#L146true havoc __utac_acc__Specification4_spec__1_#t~ret41, __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 56#L386true __utac_acc__Specification4_spec__1_#t~ret41 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret41;havoc __utac_acc__Specification4_spec__1_#t~ret41; 54#L408true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 57#L408-1true [2020-11-29 20:23:30,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:30,474 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 20:23:30,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:30,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233367898] [2020-11-29 20:23:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:30,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:31,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:31,146 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:23:31,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:31,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729467, now seen corresponding path program 1 times [2020-11-29 20:23:31,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:31,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553854264] [2020-11-29 20:23:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:23:31,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553854264] [2020-11-29 20:23:31,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:31,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:23:31,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271590908] [2020-11-29 20:23:31,264 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:23:31,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:31,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:23:31,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:23:31,287 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states. [2020-11-29 20:23:31,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:31,357 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2020-11-29 20:23:31,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:23:31,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2020-11-29 20:23:31,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-29 20:23:31,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2020-11-29 20:23:31,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2020-11-29 20:23:31,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2020-11-29 20:23:31,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2020-11-29 20:23:31,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:23:31,389 INFO L691 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-29 20:23:31,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2020-11-29 20:23:31,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-29 20:23:31,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-29 20:23:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2020-11-29 20:23:31,430 INFO L714 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-29 20:23:31,430 INFO L594 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-29 20:23:31,431 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:23:31,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2020-11-29 20:23:31,433 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-29 20:23:31,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:23:31,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:23:31,435 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:23:31,435 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:31,435 INFO L794 eck$LassoCheckResult]: Stem: 201#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~string32.base, #t~string32.offset := #Ultimate.allocOnStack(13);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(77, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(101, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(116, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(104, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string36.base, #t~string36.offset, 1);call write~init~int(82, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(73, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(84, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 4 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(75, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 167#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 168#L451 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 203#L459 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 214#L912 assume 0 != main_~tmp~8; 182#L889 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; 183#L408-1 [2020-11-29 20:23:31,436 INFO L796 eck$LassoCheckResult]: Loop: 183#L408-1 assume !false; 215#L67 assume test_~splverifierCounter~0 < 4; 216#L68 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 177#L76 assume !(0 != test_~tmp~0); 172#L76-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 174#L86 assume !(0 != test_~tmp___0~0); 209#L86-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 213#L96 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 205#L104-2 assume !(0 != ~pumpRunning~0); 202#L139 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 175#L171 assume !(0 != ~pumpRunning~0); 157#L146 havoc __utac_acc__Specification4_spec__1_#t~ret41, __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 162#L386 __utac_acc__Specification4_spec__1_#t~ret41 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret41;havoc __utac_acc__Specification4_spec__1_#t~ret41; 217#L408 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 183#L408-1 [2020-11-29 20:23:31,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:31,437 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 20:23:31,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:31,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226998151] [2020-11-29 20:23:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:31,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:31,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:31,644 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:23:31,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:31,646 INFO L82 PathProgramCache]: Analyzing trace with hash -589998915, now seen corresponding path program 1 times [2020-11-29 20:23:31,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:31,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121881987] [2020-11-29 20:23:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:31,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:31,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:31,681 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:23:31,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:31,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040611, now seen corresponding path program 1 times [2020-11-29 20:23:31,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:31,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371073632] [2020-11-29 20:23:31,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:31,776 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:31,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:31,905 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:23:32,039 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-29 20:25:03,000 WARN L193 SmtUtils]: Spent 1.51 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 20:26:05,233 WARN L193 SmtUtils]: Spent 1.04 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 20:26:05,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:26:05 BoogieIcfgContainer [2020-11-29 20:26:05,419 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:26:05,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:26:05,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:26:05,420 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:26:05,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:23:30" (3/4) ... [2020-11-29 20:26:05,424 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:26:05,493 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f7fc5fc6-87ec-4fa7-a98e-76624ca45a14/bin/uautomizer/witness.graphml [2020-11-29 20:26:05,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:26:05,496 INFO L168 Benchmark]: Toolchain (without parser) took 157427.87 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 56.8 MB in the beginning and 68.2 MB in the end (delta: -11.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:05,497 INFO L168 Benchmark]: CDTParser took 1.06 ms. Allocated memory is still 67.1 MB. Free memory was 29.2 MB in the beginning and 29.2 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:05,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.22 ms. Allocated memory is still 88.1 MB. Free memory was 56.4 MB in the beginning and 56.4 MB in the end (delta: 37.2 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:05,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.58 ms. Allocated memory is still 88.1 MB. Free memory was 56.4 MB in the beginning and 53.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:05,500 INFO L168 Benchmark]: Boogie Preprocessor took 62.89 ms. Allocated memory is still 88.1 MB. Free memory was 53.4 MB in the beginning and 51.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:05,501 INFO L168 Benchmark]: RCFGBuilder took 1271.43 ms. Allocated memory is still 88.1 MB. Free memory was 51.4 MB in the beginning and 39.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:05,502 INFO L168 Benchmark]: BuchiAutomizer took 155125.95 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 39.3 MB in the beginning and 71.2 MB in the end (delta: -31.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:05,503 INFO L168 Benchmark]: Witness Printer took 74.15 ms. Allocated memory is still 113.2 MB. Free memory was 71.2 MB in the beginning and 68.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:05,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06 ms. Allocated memory is still 67.1 MB. Free memory was 29.2 MB in the beginning and 29.2 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 768.22 ms. Allocated memory is still 88.1 MB. Free memory was 56.4 MB in the beginning and 56.4 MB in the end (delta: 37.2 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.58 ms. Allocated memory is still 88.1 MB. Free memory was 56.4 MB in the beginning and 53.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.89 ms. Allocated memory is still 88.1 MB. Free memory was 53.4 MB in the beginning and 51.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1271.43 ms. Allocated memory is still 88.1 MB. Free memory was 51.4 MB in the beginning and 39.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 155125.95 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 39.3 MB in the beginning and 71.2 MB in the end (delta: -31.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * Witness Printer took 74.15 ms. Allocated memory is still 113.2 MB. Free memory was 71.2 MB in the beginning and 68.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 155.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 154.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 95 SDtfs, 95 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12478} State at position 1 is {NULL=12503, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e4e2a64=83, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bdc7fd6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d1ce493=0, NULL=12478, NULL=0, NULL=12494, NULL=12495, NULL=12499, NULL=12490, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a759d83=0, NULL=12479, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22659cee=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=12484, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9f8d339=0, NULL=12480, NULL=0, NULL=0, NULL=12497, cleanupTimeShifts=4, tmp=0, NULL=12502, NULL=12481, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2262afc1=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d5e0984=0, NULL=12498, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, tmp___0=0, retValue_acc=0, NULL=12506, \result=1, head=0, pumpRunning=0, \result=0, NULL=12487, NULL=12492, NULL=0, NULL=0, NULL=12482, NULL=0, tmp=1, NULL=0, NULL=0, NULL=12488, retValue_acc=1, NULL=0, NULL=0, tmp=1, NULL=12491, NULL=0, NULL=0, NULL=12505, NULL=0, tmp___2=83, NULL=0, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=12493, NULL=12504, NULL=12489, tmp=0, head=0, NULL=12496, NULL=12483, NULL=12500, NULL=12501, NULL=12485, NULL=12486} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L633] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L830] int cleanupTimeShifts = 4; [L903] int retValue_acc ; [L904] int tmp ; [L455] int retValue_acc ; [L458] retValue_acc = 1 [L459] return (retValue_acc); [L910] tmp = valid_product() [L912] COND TRUE \read(tmp) [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L305] systemActive = 1 [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L168] int tmp ; [L171] COND FALSE !(\read(pumpRunning)) [L401] int tmp ; [L402] int tmp___0 ; [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); [L406] tmp = getWaterLevel() [L408] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...