./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/half.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/half.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/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 14367fbcb63815bbc35abe1c5a8e938762f99ead .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:45:47,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:45:47,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:45:47,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:45:47,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:45:47,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:45:47,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:45:47,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:45:47,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:45:47,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:45:47,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:45:47,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:45:47,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:45:47,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:45:47,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:45:47,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:45:47,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:45:47,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:45:47,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:45:47,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:45:47,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:45:47,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:45:47,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:45:47,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:45:47,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:45:47,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:45:47,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:45:47,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:45:47,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:45:47,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:45:47,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:45:47,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:45:47,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:45:47,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:45:47,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:45:47,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:45:47,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:45:47,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:45:47,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:45:47,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:45:47,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:45:47,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:45:48,018 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:45:48,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:45:48,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:45:48,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:45:48,029 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:45:48,030 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:45:48,030 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:45:48,030 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:45:48,030 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:45:48,030 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:45:48,031 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:45:48,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:45:48,031 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:45:48,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:45:48,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:45:48,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:45:48,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:45:48,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:45:48,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:45:48,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:45:48,034 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:45:48,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:45:48,034 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:45:48,034 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:45:48,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:45:48,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:45:48,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:45:48,035 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:45:48,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:45:48,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:45:48,036 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:45:48,037 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:45:48,037 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_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/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 -> 14367fbcb63815bbc35abe1c5a8e938762f99ead [2019-11-25 08:45:48,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:45:48,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:45:48,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:45:48,188 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:45:48,188 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:45:48,188 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/../../sv-benchmarks/c/loop-new/half.i [2019-11-25 08:45:48,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/data/4d1c94531/b57734633f6d49d1847480fcac207416/FLAG2ce1ffffc [2019-11-25 08:45:48,658 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:45:48,659 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/sv-benchmarks/c/loop-new/half.i [2019-11-25 08:45:48,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/data/4d1c94531/b57734633f6d49d1847480fcac207416/FLAG2ce1ffffc [2019-11-25 08:45:48,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/data/4d1c94531/b57734633f6d49d1847480fcac207416 [2019-11-25 08:45:48,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:45:48,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:45:48,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:45:48,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:45:48,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:45:48,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:48,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c917c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48, skipping insertion in model container [2019-11-25 08:45:48,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:48,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:45:48,713 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:45:48,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:45:48,888 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:45:48,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:45:48,982 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:45:48,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48 WrapperNode [2019-11-25 08:45:48,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:45:48,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:45:48,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:45:48,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:45:48,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:48,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:49,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:45:49,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:45:49,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:45:49,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:45:49,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:49,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:49,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:49,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:49,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:49,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:49,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... [2019-11-25 08:45:49,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:45:49,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:45:49,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:45:49,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:45:49,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:45:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:45:49,226 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:45:49,226 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:45:49,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:49 BoogieIcfgContainer [2019-11-25 08:45:49,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:45:49,228 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:45:49,228 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:45:49,231 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:45:49,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:49,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:45:48" (1/3) ... [2019-11-25 08:45:49,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cdb4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:45:49, skipping insertion in model container [2019-11-25 08:45:49,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:49,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:48" (2/3) ... [2019-11-25 08:45:49,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cdb4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:45:49, skipping insertion in model container [2019-11-25 08:45:49,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:49,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:49" (3/3) ... [2019-11-25 08:45:49,235 INFO L371 chiAutomizerObserver]: Analyzing ICFG half.i [2019-11-25 08:45:49,277 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:45:49,277 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:45:49,277 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:45:49,277 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:45:49,277 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:45:49,278 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:45:49,278 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:45:49,278 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:45:49,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:45:49,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:45:49,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:45:49,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:45:49,342 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:45:49,343 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:45:49,343 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:45:49,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:45:49,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:45:49,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:45:49,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:45:49,345 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:45:49,345 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:45:49,352 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post3, main_#t~post2, main_~i~0, main_~n~0, main_~k~0;main_~i~0 := 0;main_~n~0 := 0;main_~k~0 := main_#t~nondet1;havoc main_#t~nondet1; 13#L14true assume !!(main_~k~0 <= 1000000 && main_~k~0 >= -1000000);main_~i~0 := 0; 8#L15-3true [2019-11-25 08:45:49,353 INFO L796 eck$LassoCheckResult]: Loop: 8#L15-3true assume !!(main_~i~0 < 2 * main_~k~0); 6#L16true assume 0 == (if main_~i~0 < 0 && 0 != main_~i~0 % 2 then main_~i~0 % 2 - 2 else main_~i~0 % 2);main_#t~post3 := main_~n~0;main_~n~0 := 1 + main_#t~post3;havoc main_#t~post3; 11#L15-2true main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2; 8#L15-3true [2019-11-25 08:45:49,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:49,359 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-11-25 08:45:49,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:49,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873115618] [2019-11-25 08:45:49,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:49,460 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:49,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:49,462 INFO L82 PathProgramCache]: Analyzing trace with hash 43793, now seen corresponding path program 1 times [2019-11-25 08:45:49,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:49,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972143448] [2019-11-25 08:45:49,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:49,524 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:49,526 INFO L82 PathProgramCache]: Analyzing trace with hash 29745420, now seen corresponding path program 1 times [2019-11-25 08:45:49,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:49,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022515088] [2019-11-25 08:45:49,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:49,559 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:49,611 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:45:49,612 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:45:49,612 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:45:49,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:45:49,613 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:45:49,613 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:49,613 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:45:49,613 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:45:49,613 INFO L133 ssoRankerPreferences]: Filename of dumped script: half.i_Iteration1_Loop [2019-11-25 08:45:49,613 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:45:49,614 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:45:49,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:49,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:49,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:49,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:49,830 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:45:49,830 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:49,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:45:49,846 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:49,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:45:49,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:45:49,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:45:49,882 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=0} Honda state: {ULTIMATE.start_main_~n~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~n~0=-4}, {ULTIMATE.start_main_~n~0=1}, {ULTIMATE.start_main_~n~0=4}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:49,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:45:49,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:45:49,893 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:45:49,893 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:49,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:45:49,898 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:49,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:45:49,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:45:50,095 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:45:50,098 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:45:50,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:45:50,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:45:50,099 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:45:50,099 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:45:50,099 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:50,099 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:45:50,099 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:45:50,099 INFO L133 ssoRankerPreferences]: Filename of dumped script: half.i_Iteration1_Loop [2019-11-25 08:45:50,099 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:45:50,099 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:45:50,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:50,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:50,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:50,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:50,280 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:45:50,286 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:50,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:45:50,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:50,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:50,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:50,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:50,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:50,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:50,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:50,313 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/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 [2019-11-25 08:45:50,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:45:50,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:50,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:50,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:50,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:50,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:50,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:50,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:45:50,328 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:50,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:45:50,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:50,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:50,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:50,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:50,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:50,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:50,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:50,363 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:45:50,386 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-25 08:45:50,387 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_e88f7fdf-d41b-4bdf-aec1-2a5a3263fa4d/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) [2019-11-25 08:45:50,393 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:45:50,393 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:45:50,393 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:45:50,394 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~k~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:50,408 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:45:50,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:45:50,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:45:50,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:45:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:45:50,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:45:50,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:45:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:45:50,500 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 [2019-11-25 08:45:50,502 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2019-11-25 08:45:50,580 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 32 states and 40 transitions. Complement of second has 7 states. [2019-11-25 08:45:50,583 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 [2019-11-25 08:45:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:45:50,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-11-25 08:45:50,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-25 08:45:50,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:50,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-25 08:45:50,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:50,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-25 08:45:50,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:50,594 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2019-11-25 08:45:50,605 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:45:50,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-25 08:45:50,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:45:50,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:45:50,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:45:50,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:45:50,612 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:50,612 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:50,612 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:50,613 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:45:50,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:45:50,613 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:45:50,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:45:50,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:45:50 BoogieIcfgContainer [2019-11-25 08:45:50,623 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:45:50,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:45:50,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:45:50,626 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:45:50,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:49" (3/4) ... [2019-11-25 08:45:50,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:45:50,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:45:50,644 INFO L168 Benchmark]: Toolchain (without parser) took 1958.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.4 MB in the beginning and 999.6 MB in the end (delta: -56.2 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:50,645 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:50,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:50,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:50,649 INFO L168 Benchmark]: Boogie Preprocessor took 14.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:50,651 INFO L168 Benchmark]: RCFGBuilder took 205.54 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:50,652 INFO L168 Benchmark]: BuchiAutomizer took 1395.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.6 MB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:50,653 INFO L168 Benchmark]: Witness Printer took 13.83 ms. Allocated memory is still 1.2 GB. Free memory is still 999.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:50,664 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 962.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.58 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 14.68 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 205.54 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1395.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.6 MB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 11.5 GB. * Witness Printer took 13.83 ms. Allocated memory is still 1.2 GB. Free memory is still 999.6 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * k + -1 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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: 10 SDtfs, 13 SDslu, 10 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp86 ukn100 mio100 lsp100 div200 bol100 ite118 ukn100 eq151 hnf64 smp48 dnf100 smp100 tf105 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...