./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/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 17db2a72807ac377d533a347dbb668103ea580a0 .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:03:06,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:03:06,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:03:06,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:03:06,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:03:06,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:03:06,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:03:06,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:03:06,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:03:06,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:03:06,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:03:06,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:03:06,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:03:06,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:03:06,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:03:06,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:03:06,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:03:06,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:03:06,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:03:06,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:03:06,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:03:06,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:03:06,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:03:06,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:03:06,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:03:06,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:03:06,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:03:06,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:03:06,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:03:06,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:03:06,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:03:06,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:03:06,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:03:06,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:03:06,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:03:06,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:03:06,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:03:06,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:03:06,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:03:06,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:03:06,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:03:06,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:03:07,006 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:03:07,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:03:07,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:03:07,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:03:07,008 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:03:07,008 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:03:07,009 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:03:07,009 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:03:07,009 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:03:07,009 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:03:07,009 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:03:07,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:03:07,010 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:03:07,010 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:03:07,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:03:07,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:03:07,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:03:07,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:03:07,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:03:07,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:03:07,011 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:03:07,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:03:07,011 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:03:07,012 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:03:07,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:03:07,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:03:07,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:03:07,012 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:03:07,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:03:07,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:03:07,013 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:03:07,014 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:03:07,014 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/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/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 -> 17db2a72807ac377d533a347dbb668103ea580a0 [2019-10-22 09:03:07,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:03:07,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:03:07,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:03:07,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:03:07,052 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:03:07,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c [2019-10-22 09:03:07,117 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/data/dac18be10/72285f8fb47c4c3b85cb8abc6e786301/FLAG5b83307e3 [2019-10-22 09:03:07,478 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:03:07,479 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/sv-benchmarks/c/recursive-simple/sum_20x0-1.c [2019-10-22 09:03:07,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/data/dac18be10/72285f8fb47c4c3b85cb8abc6e786301/FLAG5b83307e3 [2019-10-22 09:03:07,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/data/dac18be10/72285f8fb47c4c3b85cb8abc6e786301 [2019-10-22 09:03:07,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:03:07,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:03:07,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:07,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:03:07,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:03:07,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3700291a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07, skipping insertion in model container [2019-10-22 09:03:07,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,513 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:03:07,528 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:03:07,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:07,708 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:03:07,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:07,791 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:03:07,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07 WrapperNode [2019-10-22 09:03:07,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:07,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:03:07,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:03:07,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:03:07,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:03:07,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:03:07,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:03:07,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:03:07,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... [2019-10-22 09:03:07,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:03:07,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:03:07,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:03:07,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:03:07,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/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 [2019-10-22 09:03:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:03:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:03:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-10-22 09:03:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-10-22 09:03:08,038 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:03:08,039 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 09:03:08,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:08 BoogieIcfgContainer [2019-10-22 09:03:08,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:03:08,041 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:03:08,041 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:03:08,044 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:03:08,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:08,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:03:07" (1/3) ... [2019-10-22 09:03:08,049 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47b751e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:03:08, skipping insertion in model container [2019-10-22 09:03:08,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:08,049 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:07" (2/3) ... [2019-10-22 09:03:08,050 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47b751e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:03:08, skipping insertion in model container [2019-10-22 09:03:08,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:08,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:08" (3/3) ... [2019-10-22 09:03:08,051 INFO L371 chiAutomizerObserver]: Analyzing ICFG sum_20x0-1.c [2019-10-22 09:03:08,095 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:03:08,095 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:03:08,095 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:03:08,096 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:03:08,096 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:03:08,096 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:03:08,096 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:03:08,096 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:03:08,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-10-22 09:03:08,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:03:08,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:08,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:08,136 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 09:03:08,136 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:03:08,137 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:03:08,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-10-22 09:03:08,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:03:08,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:08,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:08,138 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 09:03:08,139 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:03:08,145 INFO L791 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 20;main_~b~0 := 0; 15#L14true call main_#t~ret1 := sum(main_~a~0, main_~b~0);< 8#sumENTRYtrue [2019-10-22 09:03:08,146 INFO L793 eck$LassoCheckResult]: Loop: 8#sumENTRYtrue ~n := #in~n;~m := #in~m; 6#L4true assume !(~n <= 0); 7#L7true call #t~ret0 := sum(~n - 1, 1 + ~m);< 8#sumENTRYtrue [2019-10-22 09:03:08,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2019-10-22 09:03:08,159 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:08,159 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367598766] [2019-10-22 09:03:08,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:08,231 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:08,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,233 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2019-10-22 09:03:08,233 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:08,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261621027] [2019-10-22 09:03:08,233 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,233 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:08,248 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:08,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,253 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2019-10-22 09:03:08,253 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:08,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393485620] [2019-10-22 09:03:08,254 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,254 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:08,268 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:08,389 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:03:08,389 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:03:08,389 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:03:08,390 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:03:08,390 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:03:08,390 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:03:08,390 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:03:08,390 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:03:08,391 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_20x0-1.c_Iteration1_Loop [2019-10-22 09:03:08,391 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:03:08,391 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:03:08,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,503 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:03:08,504 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:03:08,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:03:08,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:03:08,521 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:03:08,521 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:03:08,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:03:08,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:03:08,538 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:03:08,539 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:03:08,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:03:08,543 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21866c47-1a55-4229-adc0-54e4b6c1a5b2/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:03:08,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:03:08,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:03:08,565 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:03:08,567 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:03:08,567 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:03:08,567 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:03:08,567 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:03:08,567 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:03:08,567 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:03:08,567 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:03:08,567 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:03:08,567 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_20x0-1.c_Iteration1_Loop [2019-10-22 09:03:08,568 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:03:08,568 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:03:08,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:08,662 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:03:08,666 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:03:08,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:03:08,672 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:03:08,672 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:03:08,672 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:03:08,672 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:03:08,673 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:03:08,674 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:03:08,674 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:03:08,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:03:08,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:03:08,680 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:03:08,680 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:03:08,680 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:03:08,680 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:03:08,681 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:03:08,682 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:03:08,682 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:03:08,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:03:08,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:03:08,684 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:03:08,684 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:03:08,684 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:03:08,685 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:03:08,685 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:03:08,687 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:03:08,688 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:03:08,692 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:03:08,700 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:03:08,700 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:03:08,704 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:03:08,704 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:03:08,704 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:03:08,705 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2019-10-22 09:03:08,708 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:03:08,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:03:08,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 09:03:08,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:08,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:08,808 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-10-22 09:03:08,809 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2019-10-22 09:03:08,902 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 29 states and 34 transitions. Complement of second has 12 states. [2019-10-22 09:03:08,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 09:03:08,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:03:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-10-22 09:03:08,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2019-10-22 09:03:08,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:03:08,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2019-10-22 09:03:08,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:03:08,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2019-10-22 09:03:08,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:03:08,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-10-22 09:03:08,909 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:03:08,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-10-22 09:03:08,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:03:08,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:03:08,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:03:08,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:03:08,914 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:03:08,914 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:03:08,914 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:03:08,914 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:03:08,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:03:08,914 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:03:08,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:03:08,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:03:08 BoogieIcfgContainer [2019-10-22 09:03:08,919 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:03:08,919 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:08,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:08,919 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:08,920 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:08" (3/4) ... [2019-10-22 09:03:08,923 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:03:08,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:08,925 INFO L168 Benchmark]: Toolchain (without parser) took 1426.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 940.4 MB in the beginning and 1.0 GB in the end (delta: -67.8 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:08,925 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:08,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:08,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:08,927 INFO L168 Benchmark]: Boogie Preprocessor took 15.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:08,928 INFO L168 Benchmark]: RCFGBuilder took 202.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:08,928 INFO L168 Benchmark]: BuchiAutomizer took 878.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.5 MB). Peak memory consumption was 93.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:08,929 INFO L168 Benchmark]: Witness Printer took 4.26 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:08,931 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 202.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 878.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.5 MB). Peak memory consumption was 93.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.26 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: 1.8 MB). Peak memory consumption was 1.8 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...