./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/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 9385f61fe99e17c8ecdfdd2ac56623ca621310c3 .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 16:17:51,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:17:51,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:17:51,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:17:51,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:17:51,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:17:51,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:17:51,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:17:51,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:17:51,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:17:51,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:17:51,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:17:51,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:17:51,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:17:51,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:17:51,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:17:51,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:17:51,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:17:51,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:17:51,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:17:51,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:17:51,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:17:51,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:17:51,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:17:51,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:17:51,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:17:51,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:17:51,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:17:51,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:17:51,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:17:51,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:17:51,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:17:51,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:17:51,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:17:51,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:17:51,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:17:51,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:17:51,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:17:51,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:17:51,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:17:51,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:17:51,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 16:17:51,853 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:17:51,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:17:51,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:17:51,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:17:51,854 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:17:51,854 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:17:51,855 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:17:51,855 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:17:51,855 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:17:51,855 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:17:51,855 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:17:51,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:17:51,855 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:17:51,855 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:17:51,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:17:51,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:17:51,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:17:51,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:17:51,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:17:51,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:17:51,856 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:17:51,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:17:51,857 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:17:51,857 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:17:51,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:17:51,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:17:51,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:17:51,857 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:17:51,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:17:51,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:17:51,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:17:51,857 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:17:51,858 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:17:51,858 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_e6cfe98a-56d7-4ee1-b94e-7112550768a2/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 -> 9385f61fe99e17c8ecdfdd2ac56623ca621310c3 [2019-12-07 16:17:51,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:17:51,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:17:51,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:17:51,967 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:17:51,968 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:17:51,968 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2019-12-07 16:17:52,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/data/8c13e4e5e/45fce4e3b2d849429f49ecabca2332a7/FLAGdc4856e5c [2019-12-07 16:17:52,440 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:17:52,441 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2019-12-07 16:17:52,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/data/8c13e4e5e/45fce4e3b2d849429f49ecabca2332a7/FLAGdc4856e5c [2019-12-07 16:17:52,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/data/8c13e4e5e/45fce4e3b2d849429f49ecabca2332a7 [2019-12-07 16:17:52,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:17:52,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:17:52,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:17:52,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:17:52,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:17:52,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52, skipping insertion in model container [2019-12-07 16:17:52,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:17:52,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:17:52,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:17:52,710 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:17:52,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:17:52,780 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:17:52,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52 WrapperNode [2019-12-07 16:17:52,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:17:52,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:17:52,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:17:52,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:17:52,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:17:52,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:17:52,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:17:52,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:17:52,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... [2019-12-07 16:17:52,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:17:52,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:17:52,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:17:52,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:17:52,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/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 [2019-12-07 16:17:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:17:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 16:17:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:17:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:17:53,423 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:17:53,424 INFO L287 CfgBuilder]: Removed 280 assume(true) statements. [2019-12-07 16:17:53,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:17:53 BoogieIcfgContainer [2019-12-07 16:17:53,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:17:53,425 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:17:53,425 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:17:53,427 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:17:53,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:17:53,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:17:52" (1/3) ... [2019-12-07 16:17:53,429 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@306fbfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:17:53, skipping insertion in model container [2019-12-07 16:17:53,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:17:53,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:17:52" (2/3) ... [2019-12-07 16:17:53,429 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@306fbfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:17:53, skipping insertion in model container [2019-12-07 16:17:53,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:17:53,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:17:53" (3/3) ... [2019-12-07 16:17:53,430 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2019-12-07 16:17:53,459 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:17:53,459 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:17:53,459 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:17:53,459 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:17:53,459 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:17:53,460 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:17:53,460 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:17:53,460 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:17:53,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states. [2019-12-07 16:17:53,496 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-12-07 16:17:53,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:17:53,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:17:53,503 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:17:53,503 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:17:53,503 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:17:53,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states. [2019-12-07 16:17:53,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-12-07 16:17:53,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:17:53,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:17:53,510 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:17:53,510 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:17:53,514 INFO L794 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);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(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~6, main_~tmp~7;havoc main_~retValue_acc~6;havoc main_~tmp~7; 117#L413true 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; 147#L421true main_#t~ret29 := valid_product_#res;main_~tmp~7 := main_#t~ret29;havoc main_#t~ret29; 168#L517true assume 0 != main_~tmp~7; 36#L494true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 74#L370-1true [2019-12-07 16:17:53,514 INFO L796 eck$LassoCheckResult]: Loop: 74#L370-1true assume !false; 90#L56true assume test_~splverifierCounter~0 < 4; 189#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 23#L65true assume !(0 != test_~tmp~0); 18#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 96#L75true assume !(0 != test_~tmp___0~0); 94#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 160#L85true assume 0 != test_~tmp___2~0; 98#L91-1true assume !(0 != ~pumpRunning~0); 164#L129true assume !(0 != ~systemActive~0); 56#L136true havoc __utac_acc__Specification4_spec__1_#t~ret26, __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 106#L972true __utac_acc__Specification4_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret26;havoc __utac_acc__Specification4_spec__1_#t~ret26; 71#L370true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 74#L370-1true [2019-12-07 16:17:53,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:17:53,519 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 16:17:53,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:17:53,524 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535402855] [2019-12-07 16:17:53,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:17:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:53,718 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:17:53,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:17:53,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1667892533, now seen corresponding path program 1 times [2019-12-07 16:17:53,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:17:53,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498661242] [2019-12-07 16:17:53,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:17:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:53,730 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:17:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:17:53,731 INFO L82 PathProgramCache]: Analyzing trace with hash 46386405, now seen corresponding path program 1 times [2019-12-07 16:17:53,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:17:53,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662346217] [2019-12-07 16:17:53,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:17:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:17:53,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:17:53,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662346217] [2019-12-07 16:17:53,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:17:53,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 16:17:53,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28468206] [2019-12-07 16:17:53,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:17:53,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:17:53,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:17:53,890 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 6 states. [2019-12-07 16:17:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:17:54,040 INFO L93 Difference]: Finished difference Result 420 states and 618 transitions. [2019-12-07 16:17:54,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:17:54,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 420 states and 618 transitions. [2019-12-07 16:17:54,049 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 273 [2019-12-07 16:17:54,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 420 states to 399 states and 597 transitions. [2019-12-07 16:17:54,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 399 [2019-12-07 16:17:54,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 399 [2019-12-07 16:17:54,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 399 states and 597 transitions. [2019-12-07 16:17:54,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:17:54,061 INFO L688 BuchiCegarLoop]: Abstraction has 399 states and 597 transitions. [2019-12-07 16:17:54,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states and 597 transitions. [2019-12-07 16:17:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 222. [2019-12-07 16:17:54,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-12-07 16:17:54,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 330 transitions. [2019-12-07 16:17:54,091 INFO L711 BuchiCegarLoop]: Abstraction has 222 states and 330 transitions. [2019-12-07 16:17:54,092 INFO L591 BuchiCegarLoop]: Abstraction has 222 states and 330 transitions. [2019-12-07 16:17:54,092 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:17:54,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 330 transitions. [2019-12-07 16:17:54,093 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2019-12-07 16:17:54,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:17:54,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:17:54,094 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:17:54,094 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:17:54,094 INFO L794 eck$LassoCheckResult]: Stem: 783#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);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(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 649#L-1 havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~6, main_~tmp~7;havoc main_~retValue_acc~6;havoc main_~tmp~7; 650#L413 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; 774#L421 main_#t~ret29 := valid_product_#res;main_~tmp~7 := main_#t~ret29;havoc main_#t~ret29; 793#L517 assume 0 != main_~tmp~7; 687#L494 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, 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; 688#L370-1 [2019-12-07 16:17:54,094 INFO L796 eck$LassoCheckResult]: Loop: 688#L370-1 assume !false; 738#L56 assume test_~splverifierCounter~0 < 4; 751#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 667#L65 assume !(0 != test_~tmp~0); 657#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 658#L75 assume !(0 != test_~tmp___0~0); 752#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 753#L85 assume 0 != test_~tmp___2~0; 758#L91-1 assume !(0 != ~pumpRunning~0); 760#L129 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 747#L213 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 748#L187-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 643#L161-3 assume !(0 == ~pumpRunning~0); 645#L136 havoc __utac_acc__Specification4_spec__1_#t~ret26, __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 716#L972 __utac_acc__Specification4_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret26;havoc __utac_acc__Specification4_spec__1_#t~ret26; 733#L370 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 688#L370-1 [2019-12-07 16:17:54,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:17:54,095 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 16:17:54,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:17:54,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272084114] [2019-12-07 16:17:54,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:17:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:54,154 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:17:54,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:17:54,155 INFO L82 PathProgramCache]: Analyzing trace with hash -2101003018, now seen corresponding path program 1 times [2019-12-07 16:17:54,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:17:54,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758331731] [2019-12-07 16:17:54,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:17:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:17:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:17:54,164 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758331731] [2019-12-07 16:17:54,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:17:54,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:17:54,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209847783] [2019-12-07 16:17:54,165 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 16:17:54,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:17:54,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:17:54,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:17:54,166 INFO L87 Difference]: Start difference. First operand 222 states and 330 transitions. cyclomatic complexity: 111 Second operand 3 states. [2019-12-07 16:17:54,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:17:54,245 INFO L93 Difference]: Finished difference Result 225 states and 310 transitions. [2019-12-07 16:17:54,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:17:54,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 310 transitions. [2019-12-07 16:17:54,248 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2019-12-07 16:17:54,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 225 states and 310 transitions. [2019-12-07 16:17:54,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 225 [2019-12-07 16:17:54,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 225 [2019-12-07 16:17:54,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 310 transitions. [2019-12-07 16:17:54,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:17:54,251 INFO L688 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2019-12-07 16:17:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 310 transitions. [2019-12-07 16:17:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2019-12-07 16:17:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-12-07 16:17:54,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 310 transitions. [2019-12-07 16:17:54,260 INFO L711 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2019-12-07 16:17:54,260 INFO L591 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2019-12-07 16:17:54,260 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:17:54,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 310 transitions. [2019-12-07 16:17:54,261 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2019-12-07 16:17:54,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:17:54,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:17:54,262 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:17:54,262 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:17:54,263 INFO L794 eck$LassoCheckResult]: Stem: 1219#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);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(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1099#L-1 havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~6, main_~tmp~7;havoc main_~retValue_acc~6;havoc main_~tmp~7; 1100#L413 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; 1209#L421 main_#t~ret29 := valid_product_#res;main_~tmp~7 := main_#t~ret29;havoc main_#t~ret29; 1227#L517 assume 0 != main_~tmp~7; 1126#L494 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, 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; 1127#L370-1 [2019-12-07 16:17:54,263 INFO L796 eck$LassoCheckResult]: Loop: 1127#L370-1 assume !false; 1288#L56 assume test_~splverifierCounter~0 < 4; 1287#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1286#L65 assume !(0 != test_~tmp~0); 1284#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1283#L75 assume !(0 != test_~tmp___0~0); 1281#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 1279#L85 assume 0 != test_~tmp___2~0; 1193#L91-1 assume !(0 != ~pumpRunning~0); 1194#L129 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1181#L213 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 1182#L187-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1094#L161-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, 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~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1095#L980-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1212#L985-3 isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; 1111#L315-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1112#L315-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1115#L321-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 1225#L165-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1179#L136 havoc __utac_acc__Specification4_spec__1_#t~ret26, __utac_acc__Specification4_spec__1_#t~ret27, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1291#L972 __utac_acc__Specification4_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret26;havoc __utac_acc__Specification4_spec__1_#t~ret26; 1166#L370 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 1127#L370-1 [2019-12-07 16:17:54,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:17:54,263 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 16:17:54,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:17:54,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555158968] [2019-12-07 16:17:54,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:17:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:54,313 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:17:54,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:17:54,314 INFO L82 PathProgramCache]: Analyzing trace with hash 2033396642, now seen corresponding path program 1 times [2019-12-07 16:17:54,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:17:54,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883864092] [2019-12-07 16:17:54,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:17:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:54,324 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:17:54,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:17:54,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1008265528, now seen corresponding path program 1 times [2019-12-07 16:17:54,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:17:54,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814438392] [2019-12-07 16:17:54,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:17:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:17:54,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:18:19,065 WARN L192 SmtUtils]: Spent 24.55 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 16:18:31,444 WARN L192 SmtUtils]: Spent 12.38 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 16:18:31,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:18:31 BoogieIcfgContainer [2019-12-07 16:18:31,495 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:18:31,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:18:31,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:18:31,495 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:18:31,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:17:53" (3/4) ... [2019-12-07 16:18:31,498 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 16:18:31,533 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e6cfe98a-56d7-4ee1-b94e-7112550768a2/bin/uautomizer/witness.graphml [2019-12-07 16:18:31,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:18:31,534 INFO L168 Benchmark]: Toolchain (without parser) took 39073.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -69.7 MB). Peak memory consumption was 90.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:18:31,534 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:18:31,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:18:31,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:18:31,535 INFO L168 Benchmark]: Boogie Preprocessor took 37.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:18:31,535 INFO L168 Benchmark]: RCFGBuilder took 556.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 997.7 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:18:31,536 INFO L168 Benchmark]: BuchiAutomizer took 38069.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 997.7 MB in the beginning and 1.0 GB in the end (delta: -19.0 MB). Peak memory consumption was 223.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:18:31,536 INFO L168 Benchmark]: Witness Printer took 37.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:18:31,538 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 556.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 997.7 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38069.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 997.7 MB in the beginning and 1.0 GB in the end (delta: -19.0 MB). Peak memory consumption was 223.5 MB. Max. memory is 11.5 GB. * Witness Printer took 37.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 225 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 177 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 225 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 477 SDtfs, 1215 SDslu, 1130 SDs, 0 SdLazy, 85 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1716} State at position 1 is {retValue_acc=1, NULL=1727, NULL=0, NULL=0, NULL=1716, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3eb93289=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@241cd310=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77cdabe8=60, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@99d410d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6982b7ae=0, NULL=6386, NULL=1717, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3af0c822=0, tmp=0, tmp___0=0, NULL=0, retValue_acc=0, NULL=0, NULL=15414, tmp___1=0, NULL=1728, cleanupTimeShifts=4, tmp=0, tmp=0, NULL=1721, NULL=6385, tmp___0=0, NULL=6387, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=1719, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cc6f859=0, NULL=0, \result=0, tmp___0=0, NULL=0, NULL=0, NULL=1720, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32b7190c=0, NULL=1734, NULL=1718, \result=0, NULL=1724, NULL=1726, NULL=1725, NULL=0, NULL=15413, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, retValue_acc=1, \result=1, NULL=1732, NULL=1722, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d220bea=0, tmp=1, NULL=0, tmp=1, retValue_acc=1, tmp___2=60, splverifierCounter=0, NULL=0, NULL=0, NULL=1733, NULL=1729, NULL=1730, tmp=0, head=0, NULL=1735, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c519379=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c2b89e3=0, NULL=0, NULL=0, NULL=1723, NULL=6388, NULL=0, NULL=1731} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L435] int cleanupTimeShifts = 4; [L700] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L897] int waterLevel = 1; [L898] int methaneLevelCritical = 0; [L508] int retValue_acc ; [L509] int tmp ; [L417] int retValue_acc ; [L420] retValue_acc = 1 [L421] return (retValue_acc); [L515] tmp = valid_product() [L517] COND TRUE \read(tmp) [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L210] int tmp ; [L213] COND FALSE !(\read(pumpRunning)) [L184] int tmp ; [L187] COND FALSE !(\read(pumpRunning)) [L158] int tmp ; [L161] COND TRUE ! pumpRunning [L307] int retValue_acc ; [L308] int tmp ; [L309] int tmp___0 ; [L977] int retValue_acc ; [L980] COND TRUE waterLevel < 2 [L981] retValue_acc = 1 [L982] return (retValue_acc); [L313] tmp = isHighWaterSensorDry() [L315] COND TRUE \read(tmp) [L316] tmp___0 = 0 [L320] retValue_acc = tmp___0 [L321] return (retValue_acc); [L163] tmp = isHighWaterLevel() [L165] COND FALSE !(\read(tmp)) [L363] int tmp ; [L364] int tmp___0 ; [L968] int retValue_acc ; [L971] retValue_acc = waterLevel [L972] return (retValue_acc); [L368] tmp = getWaterLevel() [L370] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...