./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/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 31319b3dce926b7eddaa50d24c240f6870931f21 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:58:28,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:58:28,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:58:28,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:58:28,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:58:28,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:58:28,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:58:28,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:58:28,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:58:28,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:58:28,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:58:28,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:58:28,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:58:28,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:58:28,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:58:28,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:58:28,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:58:28,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:58:28,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:58:28,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:58:28,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:58:28,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:58:28,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:58:28,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:58:28,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:58:28,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:58:28,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:58:28,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:58:28,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:58:28,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:58:28,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:58:28,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:58:28,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:58:28,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:58:28,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:58:28,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:58:28,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:58:28,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:58:28,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:58:28,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:58:28,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:58:28,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:58:28,191 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:58:28,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:58:28,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:58:28,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:58:28,201 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:58:28,202 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:58:28,202 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:58:28,202 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:58:28,202 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:58:28,202 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:58:28,203 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:58:28,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:58:28,203 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:58:28,203 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:58:28,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:58:28,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:58:28,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:58:28,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:58:28,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:58:28,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:58:28,204 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:58:28,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:58:28,205 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:58:28,205 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:58:28,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:58:28,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:58:28,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:58:28,206 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:58:28,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:58:28,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:58:28,206 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:58:28,207 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:58:28,207 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_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/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 -> 31319b3dce926b7eddaa50d24c240f6870931f21 [2019-11-25 08:58:28,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:58:28,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:58:28,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:58:28,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:58:28,363 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:58:28,363 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2019-11-25 08:58:28,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/data/d9748c93d/3cf10944644742db9dd66cfe6f12fa9e/FLAGecece15a2 [2019-11-25 08:58:28,817 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:58:28,818 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2019-11-25 08:58:28,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/data/d9748c93d/3cf10944644742db9dd66cfe6f12fa9e/FLAGecece15a2 [2019-11-25 08:58:28,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/data/d9748c93d/3cf10944644742db9dd66cfe6f12fa9e [2019-11-25 08:58:28,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:58:28,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:58:28,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:28,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:58:28,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:58:28,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:28" (1/1) ... [2019-11-25 08:58:28,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4947b503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:28, skipping insertion in model container [2019-11-25 08:58:28,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:28" (1/1) ... [2019-11-25 08:58:28,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:58:28,878 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:58:28,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:28,994 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:58:29,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:29,080 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:58:29,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29 WrapperNode [2019-11-25 08:58:29,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:29,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:29,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:58:29,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:58:29,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:29,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:58:29,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:58:29,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:58:29,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... [2019-11-25 08:58:29,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:58:29,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:58:29,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:58:29,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:58:29,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/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 [2019-11-25 08:58:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:58:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:58:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-11-25 08:58:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-11-25 08:58:29,368 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:58:29,369 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-25 08:58:29,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:29 BoogieIcfgContainer [2019-11-25 08:58:29,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:58:29,370 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:58:29,370 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:58:29,375 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:58:29,376 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:29,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:58:28" (1/3) ... [2019-11-25 08:58:29,377 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e20f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:58:29, skipping insertion in model container [2019-11-25 08:58:29,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:29,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:29" (2/3) ... [2019-11-25 08:58:29,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e20f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:58:29, skipping insertion in model container [2019-11-25 08:58:29,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:29,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:29" (3/3) ... [2019-11-25 08:58:29,381 INFO L371 chiAutomizerObserver]: Analyzing ICFG sum_15x0-2.c [2019-11-25 08:58:29,441 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:58:29,442 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:58:29,442 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:58:29,443 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:58:29,443 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:58:29,443 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:58:29,443 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:58:29,443 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:58:29,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-25 08:58:29,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:29,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:29,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:29,491 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:58:29,491 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:58:29,491 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:58:29,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-25 08:58:29,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:29,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:29,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:29,494 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:58:29,494 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:58:29,501 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 15;main_~b~0 := 0; 15#L14true call main_#t~ret1 := sum(main_~a~0, main_~b~0);< 8#sumENTRYtrue [2019-11-25 08:58:29,501 INFO L796 eck$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 [2019-11-25 08:58:29,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:29,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2019-11-25 08:58:29,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:29,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867755697] [2019-11-25 08:58:29,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:29,596 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:29,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:29,597 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2019-11-25 08:58:29,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:29,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295914858] [2019-11-25 08:58:29,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:29,611 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:29,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:29,612 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2019-11-25 08:58:29,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:29,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132692196] [2019-11-25 08:58:29,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:29,628 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:29,751 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:29,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:29,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:29,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:29,752 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:58:29,752 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:29,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:29,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:29,753 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-2.c_Iteration1_Loop [2019-11-25 08:58:29,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:29,753 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:29,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,894 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:29,895 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/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) [2019-11-25 08:58:29,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:29,906 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:29,917 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:58:29,918 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/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 [2019-11-25 08:58:29,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:29,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:58:29,930 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:58:29,930 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/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/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 [2019-11-25 08:58:29,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:29,936 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/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 [2019-11-25 08:58:29,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:58:29,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:58:29,953 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:58:29,955 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:29,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:29,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:29,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:29,955 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:58:29,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:29,955 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:29,955 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:29,955 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-2.c_Iteration1_Loop [2019-11-25 08:58:29,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:29,956 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:29,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:29,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:30,040 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:30,044 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:30,054 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 [2019-11-25 08:58:30,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:30,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:30,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:30,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:30,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:30,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:30,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:30,063 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:30,074 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 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:30,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:30,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:30,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:30,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:30,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:30,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:30,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:30,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:30,102 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 [2019-11-25 08:58:30,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:30,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:30,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:30,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:30,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:30,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:30,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:30,108 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:58:30,113 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:58:30,113 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07d4f3ff-bcd5-4a5e-9f4a-62b08f5d4f38/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:30,118 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:58:30,118 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:58:30,119 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:58:30,119 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2019-11-25 08:58:30,132 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:30,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:30,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:58:30,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:30,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:58:30,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:30,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:30,256 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 [2019-11-25 08:58:30,257 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2019-11-25 08:58:30,356 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. [2019-11-25 08:58:30,358 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 [2019-11-25 08:58:30,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:58:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-11-25 08:58:30,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-25 08:58:30,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:30,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-25 08:58:30,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:30,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-25 08:58:30,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:30,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-11-25 08:58:30,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:30,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-11-25 08:58:30,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:58:30,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:58:30,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:58:30,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:58:30,373 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:30,373 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:30,373 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:30,373 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:58:30,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:58:30,373 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:30,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:58:30,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:58:30 BoogieIcfgContainer [2019-11-25 08:58:30,379 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:58:30,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:58:30,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:58:30,381 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:58:30,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:29" (3/4) ... [2019-11-25 08:58:30,385 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:58:30,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:58:30,388 INFO L168 Benchmark]: Toolchain (without parser) took 1536.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -62.1 MB). Peak memory consumption was 78.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:30,389 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:30,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:30,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:30,391 INFO L168 Benchmark]: Boogie Preprocessor took 13.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:30,392 INFO L168 Benchmark]: RCFGBuilder took 243.96 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:30,393 INFO L168 Benchmark]: BuchiAutomizer took 1009.21 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: 106.1 MB). Peak memory consumption was 106.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:30,394 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:30,401 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 243.96 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1009.21 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: 106.1 MB). Peak memory consumption was 106.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. 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 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: 17ms 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...