./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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 1b149b3cef099476d14a8b122afb66552d0406eb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:08:33,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:08:33,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:08:33,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:08:33,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:08:33,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:08:33,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:08:33,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:08:33,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:08:33,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:08:33,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:08:33,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:08:33,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:08:33,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:08:33,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:08:33,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:08:33,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:08:33,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:08:33,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:08:33,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:08:33,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:08:33,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:08:33,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:08:33,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:08:33,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:08:33,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:08:33,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:08:33,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:08:33,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:08:33,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:08:33,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:08:33,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:08:33,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:08:33,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:08:33,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:08:33,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:08:33,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:08:33,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:08:33,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:08:33,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:08:33,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:08:33,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:08:33,154 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:08:33,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:08:33,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:08:33,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:08:33,156 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:08:33,156 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:08:33,156 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:08:33,156 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:08:33,156 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:08:33,156 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:08:33,156 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:08:33,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:08:33,157 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:08:33,157 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:08:33,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:08:33,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:08:33,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:08:33,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:08:33,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:08:33,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:08:33,158 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:08:33,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:08:33,158 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:08:33,158 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:08:33,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:08:33,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:08:33,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:08:33,159 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:08:33,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:08:33,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:08:33,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:08:33,159 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:08:33,160 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:08:33,160 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_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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 -> 1b149b3cef099476d14a8b122afb66552d0406eb [2019-12-07 17:08:33,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:08:33,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:08:33,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:08:33,270 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:08:33,271 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:08:33,271 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2019-12-07 17:08:33,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/data/36bcd7560/4b4143107d564aea8ab0317facda2d33/FLAG567f3d234 [2019-12-07 17:08:33,713 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:08:33,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2019-12-07 17:08:33,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/data/36bcd7560/4b4143107d564aea8ab0317facda2d33/FLAG567f3d234 [2019-12-07 17:08:33,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/data/36bcd7560/4b4143107d564aea8ab0317facda2d33 [2019-12-07 17:08:33,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:08:33,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:08:33,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:08:33,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:08:33,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:08:33,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4562956c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33, skipping insertion in model container [2019-12-07 17:08:33,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:08:33,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:08:33,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:08:33,846 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:08:33,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:08:33,895 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:08:33,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33 WrapperNode [2019-12-07 17:08:33,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:08:33,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:08:33,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:08:33,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:08:33,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:08:33,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:08:33,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:08:33,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:08:33,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... [2019-12-07 17:08:33,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:08:33,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:08:33,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:08:33,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:08:33,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:08:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:08:34,058 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:08:34,058 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 17:08:34,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:08:34 BoogieIcfgContainer [2019-12-07 17:08:34,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:08:34,060 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:08:34,060 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:08:34,062 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:08:34,062 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:08:34,062 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:08:33" (1/3) ... [2019-12-07 17:08:34,063 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ac79cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:08:34, skipping insertion in model container [2019-12-07 17:08:34,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:08:34,063 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:08:33" (2/3) ... [2019-12-07 17:08:34,063 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ac79cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:08:34, skipping insertion in model container [2019-12-07 17:08:34,064 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:08:34,064 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:08:34" (3/3) ... [2019-12-07 17:08:34,065 INFO L371 chiAutomizerObserver]: Analyzing ICFG sum01_bug02_sum01_bug02_base.case.i [2019-12-07 17:08:34,094 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:08:34,094 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:08:34,094 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:08:34,094 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:08:34,094 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:08:34,094 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:08:34,094 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:08:34,094 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:08:34,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-12-07 17:08:34,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:08:34,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:08:34,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:08:34,120 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:08:34,120 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 17:08:34,120 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:08:34,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-12-07 17:08:34,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:08:34,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:08:34,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:08:34,121 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:08:34,121 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 17:08:34,126 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;main_~sn~0 := 0;main_~i~0 := 1; 4#L13-3true [2019-12-07 17:08:34,126 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-3true assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 3#L15true assume 4 == main_~i~0;main_~sn~0 := -10; 7#L13-2true main_#t~post1 := main_~i~0;main_~i~0 := 1 + main_#t~post1;havoc main_#t~post1; 4#L13-3true [2019-12-07 17:08:34,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:34,130 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 17:08:34,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:08:34,136 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957424826] [2019-12-07 17:08:34,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:08:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:08:34,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:34,213 INFO L82 PathProgramCache]: Analyzing trace with hash 38828, now seen corresponding path program 1 times [2019-12-07 17:08:34,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:08:34,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008708228] [2019-12-07 17:08:34,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:08:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,221 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:08:34,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:34,222 INFO L82 PathProgramCache]: Analyzing trace with hash 962349, now seen corresponding path program 1 times [2019-12-07 17:08:34,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:08:34,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639385279] [2019-12-07 17:08:34,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:08:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:08:34,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639385279] [2019-12-07 17:08:34,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:08:34,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:08:34,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417780384] [2019-12-07 17:08:34,303 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:08:34,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:08:34,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:08:34,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:08:34,304 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:08:34,304 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,304 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:08:34,304 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:08:34,304 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2019-12-07 17:08:34,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:08:34,305 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:08:34,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,367 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:08:34,368 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:08:34,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:08:34,379 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:08:34,379 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=-10} Honda state: {ULTIMATE.start_main_~sn~0=-10} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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 [2019-12-07 17:08:34,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:08:34,384 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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 [2019-12-07 17:08:34,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:08:34,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:08:34,396 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:08:34,397 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:08:34,397 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:08:34,397 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:08:34,397 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:08:34,397 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:08:34,397 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,397 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:08:34,397 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:08:34,398 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2019-12-07 17:08:34,398 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:08:34,398 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:08:34,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,439 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:08:34,443 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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 [2019-12-07 17:08:34,447 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 [2019-12-07 17:08:34,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:08:34,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:08:34,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:08:34,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:08:34,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:08:34,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:08:34,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:08:34,453 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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 [2019-12-07 17:08:34,457 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 [2019-12-07 17:08:34,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:08:34,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:08:34,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:08:34,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:08:34,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:08:34,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:08:34,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:08:34,462 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:08:34,466 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 17:08:34,466 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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 [2019-12-07 17:08:34,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:08:34,469 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:08:34,470 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:08:34,470 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2019-12-07 17:08:34,473 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:08:34,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:34,497 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:08:34,497 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:08:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:34,504 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:08:34,504 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:08:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:08:34,523 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 [2019-12-07 17:08:34,524 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2019-12-07 17:08:34,558 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 31 states and 43 transitions. Complement of second has 7 states. [2019-12-07 17:08:34,558 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 [2019-12-07 17:08:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 17:08:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2019-12-07 17:08:34,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2019-12-07 17:08:34,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:08:34,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2019-12-07 17:08:34,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:08:34,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2019-12-07 17:08:34,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:08:34,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 43 transitions. [2019-12-07 17:08:34,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:08:34,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 11 states and 14 transitions. [2019-12-07 17:08:34,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 17:08:34,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-12-07 17:08:34,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-12-07 17:08:34,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 17:08:34,569 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 17:08:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-12-07 17:08:34,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-12-07 17:08:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 17:08:34,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-12-07 17:08:34,586 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 17:08:34,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:08:34,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:08:34,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:08:34,589 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand 3 states. [2019-12-07 17:08:34,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:08:34,598 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-12-07 17:08:34,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:08:34,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2019-12-07 17:08:34,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:08:34,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2019-12-07 17:08:34,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-12-07 17:08:34,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 17:08:34,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2019-12-07 17:08:34,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 17:08:34,601 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 17:08:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2019-12-07 17:08:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2019-12-07 17:08:34,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 17:08:34,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-12-07 17:08:34,602 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 17:08:34,602 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 17:08:34,602 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:08:34,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-12-07 17:08:34,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:08:34,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:08:34,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:08:34,603 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 17:08:34,603 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 17:08:34,603 INFO L794 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;main_~sn~0 := 0;main_~i~0 := 1; 113#L13-3 assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 105#L15 [2019-12-07 17:08:34,603 INFO L796 eck$LassoCheckResult]: Loop: 105#L15 assume !(4 == main_~i~0); 106#L13-2 main_#t~post1 := main_~i~0;main_~i~0 := 1 + main_#t~post1;havoc main_#t~post1; 109#L13-3 assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 105#L15 [2019-12-07 17:08:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:34,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1001, now seen corresponding path program 1 times [2019-12-07 17:08:34,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:08:34,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999509740] [2019-12-07 17:08:34,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:08:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:08:34,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:34,616 INFO L82 PathProgramCache]: Analyzing trace with hash 43750, now seen corresponding path program 1 times [2019-12-07 17:08:34,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:08:34,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828616589] [2019-12-07 17:08:34,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:08:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,622 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:08:34,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:34,623 INFO L82 PathProgramCache]: Analyzing trace with hash 29834750, now seen corresponding path program 1 times [2019-12-07 17:08:34,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:08:34,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118080850] [2019-12-07 17:08:34,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:08:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:08:34,637 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:08:34,651 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:08:34,651 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:08:34,651 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:08:34,651 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:08:34,651 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:08:34,651 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,652 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:08:34,652 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:08:34,652 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2019-12-07 17:08:34,652 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:08:34,652 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:08:34,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,692 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:08:34,692 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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 [2019-12-07 17:08:34,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:08:34,695 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:08:34,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:08:34,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:08:34,714 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=5}, {ULTIMATE.start_main_~sn~0=4}, {ULTIMATE.start_main_~sn~0=-7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:08:34,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:08:34,721 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:08:34,721 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:08:34,725 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:08:34,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:08:34,822 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:08:34,824 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:08:34,824 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:08:34,824 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:08:34,824 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:08:34,824 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:08:34,824 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,824 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:08:34,824 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:08:34,824 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2019-12-07 17:08:34,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:08:34,825 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:08:34,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:08:34,872 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:08:34,872 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,875 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 [2019-12-07 17:08:34,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:08:34,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:08:34,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:08:34,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:08:34,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:08:34,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:08:34,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:08:34,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,882 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 [2019-12-07 17:08:34,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:08:34,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:08:34,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:08:34,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:08:34,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:08:34,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:08:34,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:08:34,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,891 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 [2019-12-07 17:08:34,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:08:34,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:08:34,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:08:34,893 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 17:08:34,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:08:34,894 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 17:08:34,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:08:34,897 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:08:34,902 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 17:08:34,902 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da050cc-6f4f-4744-90a0-e0b3b7aec570/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:08:34,911 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:08:34,912 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:08:34,912 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:08:34,912 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 17:08:34,913 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:08:34,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:34,926 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:08:34,926 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:08:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:34,930 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:08:34,930 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:08:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:08:34,941 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 [2019-12-07 17:08:34,942 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 17:08:34,958 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 18 states and 23 transitions. Complement of second has 6 states. [2019-12-07 17:08:34,959 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 [2019-12-07 17:08:34,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 17:08:34,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-12-07 17:08:34,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 3 letters. [2019-12-07 17:08:34,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:08:34,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 17:08:34,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:08:34,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 6 letters. [2019-12-07 17:08:34,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:08:34,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-12-07 17:08:34,962 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:08:34,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2019-12-07 17:08:34,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:08:34,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:08:34,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:08:34,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:08:34,963 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:08:34,963 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:08:34,963 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:08:34,963 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:08:34,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:08:34,963 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:08:34,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 17:08:34,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:08:34 BoogieIcfgContainer [2019-12-07 17:08:34,968 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:08:34,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:08:34,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:08:34,969 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:08:34,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:08:34" (3/4) ... [2019-12-07 17:08:34,972 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:08:34,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:08:34,973 INFO L168 Benchmark]: Toolchain (without parser) took 1244.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 939.3 MB in the beginning and 908.4 MB in the end (delta: 30.9 MB). Peak memory consumption was 124.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:08:34,974 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:08:34,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:08:34,975 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:08:34,975 INFO L168 Benchmark]: Boogie Preprocessor took 11.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:08:34,976 INFO L168 Benchmark]: RCFGBuilder took 132.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:08:34,976 INFO L168 Benchmark]: BuchiAutomizer took 908.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 908.4 MB in the end (delta: 163.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:08:34,977 INFO L168 Benchmark]: Witness Printer took 3.13 ms. Allocated memory is still 1.1 GB. Free memory is still 908.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:08:34,980 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 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 132.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 908.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 908.4 MB in the end (delta: 163.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.13 ms. Allocated memory is still 1.1 GB. Free memory is still 908.4 MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 9 and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 3 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 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 10 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf106 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf93 smp100 dnf132 smp100 tf107 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 25ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...