./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/array_2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/array_2-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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 d20dcba6edd8088471edc005b3acd795759d474b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:41:34,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:41:34,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:41:34,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:41:34,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:41:34,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:41:34,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:41:34,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:41:34,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:41:34,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:41:34,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:41:34,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:41:34,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:41:34,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:41:34,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:41:34,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:41:34,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:41:34,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:41:34,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:41:34,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:41:34,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:41:34,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:41:34,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:41:34,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:41:34,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:41:34,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:41:34,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:41:34,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:41:34,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:41:34,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:41:34,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:41:34,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:41:34,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:41:34,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:41:34,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:41:34,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:41:34,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:41:34,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:41:34,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:41:34,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:41:34,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:41:34,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 02:41:34,949 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:41:34,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:41:34,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:41:34,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:41:34,952 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:41:34,952 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 02:41:34,952 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 02:41:34,953 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 02:41:34,953 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 02:41:34,953 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 02:41:34,954 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 02:41:34,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:41:34,955 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:41:34,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:41:34,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:41:34,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:41:34,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:41:34,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 02:41:34,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 02:41:34,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 02:41:34,957 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:41:34,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:41:34,957 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 02:41:34,957 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:41:34,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 02:41:34,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:41:34,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:41:34,958 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 02:41:34,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:41:34,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:41:34,959 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 02:41:34,960 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 02:41:34,960 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_937f28db-e9a3-4899-99b3-27512ea71386/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 -> d20dcba6edd8088471edc005b3acd795759d474b [2019-11-20 02:41:35,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:41:35,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:41:35,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:41:35,152 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:41:35,153 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:41:35,153 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/../../sv-benchmarks/c/loop-acceleration/array_2-1.i [2019-11-20 02:41:35,205 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/data/a4dfe8151/7f3a2bda96014907bab6c496f11aa45a/FLAGc05431e8f [2019-11-20 02:41:35,596 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:41:35,597 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/sv-benchmarks/c/loop-acceleration/array_2-1.i [2019-11-20 02:41:35,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/data/a4dfe8151/7f3a2bda96014907bab6c496f11aa45a/FLAGc05431e8f [2019-11-20 02:41:35,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/data/a4dfe8151/7f3a2bda96014907bab6c496f11aa45a [2019-11-20 02:41:35,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:41:35,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:41:35,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:41:35,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:41:35,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:41:35,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:41:35" (1/1) ... [2019-11-20 02:41:35,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@467c6723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:35, skipping insertion in model container [2019-11-20 02:41:35,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:41:35" (1/1) ... [2019-11-20 02:41:35,958 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:41:35,969 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:41:36,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:41:36,106 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:41:36,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:41:36,205 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:41:36,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36 WrapperNode [2019-11-20 02:41:36,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:41:36,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:41:36,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:41:36,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:41:36,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:41:36,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:41:36,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:41:36,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:41:36,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... [2019-11-20 02:41:36,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:41:36,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:41:36,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:41:36,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:41:36,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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 [2019-11-20 02:41:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 02:41:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:41:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:41:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 02:41:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:41:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:41:36,590 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:41:36,591 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 02:41:36,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:41:36 BoogieIcfgContainer [2019-11-20 02:41:36,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:41:36,593 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 02:41:36,593 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 02:41:36,596 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 02:41:36,603 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:41:36,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 02:41:35" (1/3) ... [2019-11-20 02:41:36,608 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6143e405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:41:36, skipping insertion in model container [2019-11-20 02:41:36,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:41:36,608 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:41:36" (2/3) ... [2019-11-20 02:41:36,608 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6143e405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:41:36, skipping insertion in model container [2019-11-20 02:41:36,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:41:36,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:41:36" (3/3) ... [2019-11-20 02:41:36,610 INFO L371 chiAutomizerObserver]: Analyzing ICFG array_2-1.i [2019-11-20 02:41:36,655 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 02:41:36,656 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 02:41:36,656 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 02:41:36,656 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:41:36,656 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:41:36,656 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 02:41:36,656 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:41:36,657 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 02:41:36,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-20 02:41:36,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:41:36,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:41:36,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:41:36,699 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 02:41:36,699 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:41:36,699 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 02:41:36,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-20 02:41:36,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:41:36,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:41:36,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:41:36,701 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 02:41:36,701 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:41:36,709 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~mem1, main_#t~post0, main_#t~mem2, main_#t~mem3, main_~#A~0.base, main_~#A~0.offset, main_~#B~0.base, main_~#B~0.offset, main_~i~0, main_~tmp~0;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(8192);call main_~#B~0.base, main_~#B~0.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0;havoc main_~tmp~0;main_~i~0 := 0; 4#L13-3true [2019-11-20 02:41:36,710 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-3true assume !!(main_~i~0 < 2048);call main_#t~mem1 := read~int(main_~#A~0.base, main_~#A~0.offset + 4 * main_~i~0, 4);main_~tmp~0 := main_#t~mem1;havoc main_#t~mem1;call write~int(main_~tmp~0, main_~#B~0.base, main_~#B~0.offset + 4 * main_~i~0, 4); 6#L13-2true main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0; 4#L13-3true [2019-11-20 02:41:36,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:41:36,716 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-20 02:41:36,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:41:36,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536917028] [2019-11-20 02:41:36,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:41:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:41:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:41:36,871 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:41:36,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:41:36,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2019-11-20 02:41:36,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:41:36,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526266389] [2019-11-20 02:41:36,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:41:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:41:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:41:36,894 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:41:36,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:41:36,896 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2019-11-20 02:41:36,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:41:36,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198314075] [2019-11-20 02:41:36,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:41:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:41:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:41:36,948 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:41:37,174 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-11-20 02:41:37,239 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:41:37,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:41:37,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:41:37,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:41:37,240 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:41:37,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:41:37,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:41:37,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_2-1.i_Iteration1_Lasso [2019-11-20 02:41:37,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:41:37,241 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:41:37,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:41:37,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:41:37,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:41:37,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:41:37,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:41:37,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:41:37,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:41:37,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:41:37,709 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:41:37,716 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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) [2019-11-20 02:41:37,731 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 [2019-11-20 02:41:37,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:41:37,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:41:37,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,742 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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) [2019-11-20 02:41:37,760 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 [2019-11-20 02:41:37,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:41:37,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:41:37,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,766 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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 [2019-11-20 02:41:37,778 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 [2019-11-20 02:41:37,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:41:37,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:41:37,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:41:37,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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) [2019-11-20 02:41:37,800 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 [2019-11-20 02:41:37,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:41:37,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:41:37,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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) [2019-11-20 02:41:37,819 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 [2019-11-20 02:41:37,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,826 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:41:37,826 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:41:37,830 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,843 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 [2019-11-20 02:41:37,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:41:37,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:41:37,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,870 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 [2019-11-20 02:41:37,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:41:37,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:41:37,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:41:37,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/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) [2019-11-20 02:41:37,892 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 [2019-11-20 02:41:37,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:41:37,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:41:37,919 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 [2019-11-20 02:41:37,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:41:37,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:41:37,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,929 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:41:37,950 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 [2019-11-20 02:41:37,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:37,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:41:37,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:37,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:41:37,984 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 [2019-11-20 02:41:37,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:41:37,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:41:37,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:41:37,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:41:38,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:41:38,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:38,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:41:38,088 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-20 02:41:38,088 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_937f28db-e9a3-4899-99b3-27512ea71386/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:41:38,104 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:41:38,108 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 02:41:38,108 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:41:38,109 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1) = -8*ULTIMATE.start_main_~i~0 + 4095*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 Supporting invariants [] [2019-11-20 02:41:38,133 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-11-20 02:41:38,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 02:41:38,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:41:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:41:38,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:41:38,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:41:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:41:38,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 02:41:38,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:41:38,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:41:38,242 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 02:41:38,243 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-20 02:41:38,307 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 24 states and 30 transitions. Complement of second has 8 states. [2019-11-20 02:41:38,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:41:38,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:41:38,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-11-20 02:41:38,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-20 02:41:38,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:41:38,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 02:41:38,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:41:38,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-20 02:41:38,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:41:38,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2019-11-20 02:41:38,321 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:41:38,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-11-20 02:41:38,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 02:41:38,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 02:41:38,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 02:41:38,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:41:38,328 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:41:38,329 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:41:38,329 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:41:38,329 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 02:41:38,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:41:38,330 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:41:38,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 02:41:38,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 02:41:38 BoogieIcfgContainer [2019-11-20 02:41:38,339 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 02:41:38,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:41:38,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:41:38,340 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:41:38,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:41:36" (3/4) ... [2019-11-20 02:41:38,344 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:41:38,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:41:38,347 INFO L168 Benchmark]: Toolchain (without parser) took 2401.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 906.8 MB in the end (delta: 43.3 MB). Peak memory consumption was 180.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:41:38,347 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:41:38,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 02:41:38,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.09 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. [2019-11-20 02:41:38,350 INFO L168 Benchmark]: Boogie Preprocessor took 22.04 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. [2019-11-20 02:41:38,351 INFO L168 Benchmark]: RCFGBuilder took 330.96 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: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:41:38,357 INFO L168 Benchmark]: BuchiAutomizer took 1746.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 913.5 MB in the end (delta: 190.2 MB). Peak memory consumption was 190.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:41:38,358 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 1.2 GB. Free memory is still 913.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:41:38,363 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 260.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.09 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 22.04 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 330.96 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: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1746.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 913.5 MB in the end (delta: 190.2 MB). Peak memory consumption was 190.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.18 ms. Allocated memory is still 1.2 GB. Free memory is still 913.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 -8 * i + 4095 * unknown-#length-unknown[A] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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, 5 SDslu, 4 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital144 mio100 ax100 hnf100 lsp95 ukn62 mio100 lsp68 div100 bol100 ite100 ukn100 eq164 hnf76 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 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...